Quiz
Orgins Final Review (HW1-HW7)
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Questions in this quiz (128)
1What is the Astronomical Unit (AU)?
- AIt is the average distance between the Earth and the Sun.
- Bb. It is the radius of the Solar System.
- CIt is the average distance between two galaxies.
- DIt is the distance between the Earth and the Moon.
2Which of the following correctly gives the Earth's cosmic address?
- AEarth, Moon, Solar System, Local Group, Milky Way Galaxy, Local Super
Cluster. - Bb. Earth, Solar System, Local Super Cluster, Local Group, Milky Way Galaxy.
- CEarth, Milky Way Galaxy, Local Group, Local Super Cluster, Solar System.
- DEarth, Solar System, Milky Way Galaxy, Local Group, Local Super
Cluster.
- AEarth, Moon, Solar System, Local Group, Milky Way Galaxy, Local Super
3Which one has the correct order in levels of biological organization from the smallest
to the largest scales?- AAtom, Molecule, Cell, Organ System, Organ, Organism.
- BCell, Tissue, Organ, Organ System, Organism, Population.
- CCommunity, Population, Organism, Organ, Tissue, Cell.
- DMolecule, Cell, Organ, Population, Ecosystem, Biosphere, Organism
4What is the speed of light?
- A300 (km/s)
- B300,000 (km/s)
- C300,000 (m/s)
- D300 (m/s)
5The color of light is determined by its:
- ASpeed
- BAmplitude
- CWavelength
- Dbrightness
6Light from distant objects seems:
- Avery dim because brightness decreases as the square of the distance from
the source increases. - Bvery bright because distant sources are brighter in nature.
- Cvery dim because photons lose energy as they travel.
- Dvery bright because brightness increases as the square of the distance from the
source increases.
- Avery dim because brightness decreases as the square of the distance from
7What happens to the brightness of a light source if we double its distance from us?
- AIt will be doubled.
- BIt will be halved
- CIt looks 4 times fainter.
- DIt looks 4 times brighter
8The number of ___ in the nucleus of an atom determines what element a substance is.
- AElectrons
- BProtons
- CPhotons
- DNeutrons
9When an electron drops from a higher orbital to a lower one:
- AA photon with the same orbital energy difference is absorbed.
- BA photon with less orbital energy difference is absorbed.
- CA photon with less orbital energy difference is emitted
- DA photon with the same orbital energy difference is emitted.
10The higher the frequency of an electromagnetic wave:
- AThe longer the wavelength.
- BThe higher the speed.
- CThe shorter the wavelength.
- DThe lower the speed.
11Red light has a ___ frequency, ___ energy and ___ wavelength than blue light.
- Ahigher, higher, shorter
- Blower, lower, longer
- Chigher, lower, shorter
- Dlower, higher, longer
12Which of the following is sorted in order of increasing energy?
- AGamma ray, X-ray, UV, Visible, IR, Radio
- BMicrowave, Radio, UV, Visible, X-ray, Gamma ray
- CRadio, Microwave, IR, Visible, UV, X-ray
- DRadio, UV, Microwave, Visible, X-ray, Gamma ray
13Which physical quantity describes how fast atoms bounce around in an object?
- ATemperature
- BVolume
- CMass
- DDensity
14A cloud of cool, low-density gas in front of a hot source of thermal radiation produces
a/an:- AEmission-line spectrum
- BAbsorption-line spectrum
- CContinuous spectrum
- DThermal radiation spectrum
15All distant galaxies are moving away from us. What does this observational fact tell
us about the light of far away galaxies?- AThe light gets blueshifted (The wavelength becomes shorter).
- BThe light gets redshifted (The wavelength becomes longer).
- CThere is no change in the wavelength of light.
- DDepending on the type of galaxy, it either gets redshifted or blueshifted.
16The amount of energy radiated per second from each square meter of a thermal
radiator strongly depends on...(Remember the Stephan-Boltzmann law)- AType of the object.
- BThe mass and size of the object.
- CThe temperature of the object.
- DThe temperature and size of the object.
17A piece of hot steel bar emits:
- ANo radiation at all.
- BEmission-line radiation.
- CAbsorption-line radiation.
- DThermal (blackbody) radiation.
18What happens when we cool off an object?
- AIt starts to emit thermal radiation more strongly at longer wavelengths.
- BIt starts to emit thermal radiation more strongly at shorter wavelengths.
- CIt always stops emitting the.rmal radiation
- DSince its temperature drops, it starts to emit emission-line radiation.
19According to Bohr's atomic model, what happens when an electron falls from an
upper energy level to a lower energy level?- AIt absorbs some energy equivalent to the energy difference of levels.
- BIt emits some energy in form of a photon with an energy equal to the
energy difference of levels. - CIt always swaps its energy level with another electron in an upper energy level
without absorbing or emitting any photons. - DIt emits a continuous spectrum of photons with a variety of energies.
20The farther a galaxy is, the faster it is moving away from us. This was an
observation made by:- AStefan-Boltzmann
- BEdwin Hubble
- CAlbert Einstein
- DHeinrich Olbers
21The cosmological principle states that:
- AWe are the center of the Universe because all galaxies are moving away
from us - BWe are not the center of the Milky Way because we our solar system is
orbiting the central black hole. - CWe are not the center of the Universe because space is expanding in
all directions, giving the appearance that we are at the center. - DWe are not the center of the Universe because space is expanding in
all directions, giving the appearance that we are at the center.
d.
- AWe are the center of the Universe because all galaxies are moving away
22What happens to light waves as it is traveling through empty space (no gas or dust
in the way)?- AIt loses energy as time passes
- BIt contracts since the space it is traveling in is shrinking
- CIt stretches since the space it is traveling in is expanding
- DIt continues to travel in empty space without incident
23What is one main conclusion of Hubble’s Law?
- AThe universe is not expanding and is in fact getting smaller.
- B. The universe is actually neither expanding nor shrinking.
- CGalaxies farther away from us are moving closer to us at higher velocities.
- DGalaxies farther away from us are moving away from us at
higher velocities
24If you take the inverse of Hubble’s constant, then what does that tell you about the
universe?- ADensity
- BAge
- CVolume
- DExpansion Rate of Space
25How did the Universe become transparent?
- AElectrons and ions cooled off and recombined to form atoms,
allowing light to pass. - BElectron and ions got hotter causing the atoms to never form, allowing
light to pass. - CPhotons never allowed Hydrogen atoms to form as they continuously
ionized them. - DThe universe is not transparent, but opaque. The light is constantly
absorbed and never re-emitted.
- AElectrons and ions cooled off and recombined to form atoms,
26What happens when anti-matter and matter interact with each other?
- AThey pass through each other
- BThey annihilate each other, resulting in the conversion of matter to
energy. - CThey merge with each other to form a new particle.
- DThey annihilate each other, resulting in the loss of energy
27Which one of the following are the four fundamental forces in the universe?
- AGravity, Electromagnetism, Strong, GUT
- BGravity, Electroweak, Strong, Weak
- CGravity, Electroweak, Small, Large
- D. Gravity, Electromagnetism, Strong, Weak
28The theory of inflation says that:
- ASpace underwent a rapid expansion in a very brief period in the
early universe - BSpace underwent a rapid compression in a very brief period in the early
universe - CSpace underwent a slow expansion in a very long period in the early
universe - DSpace underwent a slow compression in a very long period in the early
universe
- ASpace underwent a rapid expansion in a very brief period in the
29How did the theory of inflation solve the flatness problem?
- ABecause of the rapid compression of space, the Universe had its curvature
flattened. - BBecause of the slow expansion of space, the Universe had its curvature
flattened - CIt doesn’t solve the flatness problem.
- DBecause of the rapid expansion of space, the Universe had its curvature
flattened.
- ABecause of the rapid compression of space, the Universe had its curvature
30Which statement is correct about the big bang theory?
- AIt predicts that about 75% of the mass of the baryonic matter ended up in
Hydrogen, with about 25% in He. - BIt predicts that about 380,000 years after the big bang, radiation decoupled
from matter and this radiation is now observed as the CMB with a current
temperature of about 3 Kelvin - CIt predicts that temperature drops as the Universe expands.
- DAll of the above.
- AIt predicts that about 75% of the mass of the baryonic matter ended up in
31The initial matter perturbations which grew with time and later formed galaxies
and clusters of galaxies are observationally imprinted in the:- ACosmic Microwave Background(CMB)
radiation - BNuclei of H and He
- CPlanck Era
- DAll of the above
- ACosmic Microwave Background(CMB)
32How long after the Big Bang was the CMB formed?
- A1 second
- B380,000 years
- C100,000,000 years
- D10-33 seconds
33How do the temperature and matter density of the Universe change with time?
- AThey both increase with time
- BThey both decrease with time
- CMatter density decreases but temperature increases
- DMatter density increases but temperature decreases
34The curvature of the universe is:
- AFlat
- BOpen
- CClosed
- DTwisted
35If the density of the universe is than the critical density, then it will ____.
If the density of the universe is than the critical density, then it will ____.- Agreater, expand, less, collapse
- Bless, expand, greater, stay the same
- Cless, expand, greater, collapse
- Dless, stay the same, greater, expand
36The fate of the universe is controlled by:
- Aenergy of expansion
- Bgravitational energy
- Cbinding energy
- DAll of the above
37The universe is made up of:
- A73% Dark Matter, 23% Dark Energy, and 4% Atoms
- B73% Atoms, 23% Dark Matter, and 4% Dark Energy
- C73% Dark Energy, 23% Dark Matter, and 4% Atoms
- D73% Dark Energy, 23% Atoms, and 4% Dark Matter
38The Big Crunch is a cosmological scenario that says the future of our universe is:
- AThe universe will stop expanding and collapse on itself.
- BThe universe will stop expanding and stay the same.
- CThe universe will expand faster and faster.
- DThe universe will stop expanding and then expand even faster
39The bending and magnifying of light due to gravity is known as:
- Athe cosmological principle
- BOlbers’ Paradox
- CGravitational Lensing
- DHubble’s Law
40 Where do stars mostly form?
- AIn very hot gases rich in Hydrogen atom
- BIn very hot gases at the center of the galaxies
- CIn cold molecular gases
- DIn the less dense hot gas between galaxies
41Which of the following is NOT a feature of the elliptical galaxies?
- AThey have no particular shape
- BThey have no spiral arms
- CThey have smooth featureless appearance
- DThey have old stellar population
42 What is the Hubble’s tuning fork?
- AIt is used to tune musical instruments
- BIt is a tuning fork shaped diagram into which galaxies are organized
morphologically - CIt is a way to classify stars within a galaxy
- DIt is the formation model of the Universe
43Which of the following is correct about the irregular galaxies?
- AThey have many hot, young stars
- BThey have spiral arms
- CThey have large amounts of interstellar matter
- DThey have many hot, young stars & They have large amounts of interstellar matter
44Largest galaxies in rich clusters reside close to the ...
- Acluster's disk
- Bcluster's halo
- Ccluster's center
- Dcluster's edge
45In rich clusters most galaxies are in the form of ... and ...
- ASpiral, Elliptical
- BElliptical, S0
- CIrregular, Elliptical
- DIrregular, Spiral
46Most galaxies that are not in clusters are in the form of ... and ...
- ASpiral, Elliptical
- BElliptical, S0
- CIrregular, Elliptical
- DIrregular, Spiral
47Which statement is NOT true about rich clusters of galaxies?
- ARich clusters contain hundreds to thousands of member galaxies.
- BRich clusters have hot gas and dust
- CRich clusters have a ragged, irregular appearance
- DRich clusters are roughly spherical
48What seems to be playing an important role in keeping galaxy clusters together, is
the ...- ADark Energy
- BElectron Degeneracy pressure
- CDark Matter
- DDark Chocolate
49The Metallicity (Fraction of heavy elements) of the Inter Galactic Medium is
usually ... that of the Interstellar Medium.- ALess than
- Bhigher than
- Cequal to
- Dtwice
50What process forms new elements in stars?
- AFission
- BFusion
- CNucleosynthesis
- Dphotosynthesis
51What will finally happen to the Sun?
- AIt will explode in a supernova explosion.
- BIt gradually ejects its outer layers to later form a planetary nebula and its
leftover core turns into a white dwarf. - CIt finally turns into a black hole surrounded by a planetary nebula.
- DIt becomes a rotating neutron star that regularly emits pulses of radiation.
52What is the maximum mass that a stable white dwarf star can have (The
Chandrasekhar mass limit)?- A1.4 times the mass of the Sun.
- B3 times the mass of the Sun.
- C100 times the mass of the Sun.
- D0.1 times the mass of the Sun.
53What is the main source of energy in the Sun?
- ANuclear fission in the core.
- BNuclear fusion in the core.
- CGravitational contraction of the Sun.
- DMagnetic field of the Sun.
54How do very massive stars die eventually?
- AThey explode in a supernova explosion and leave a neutron star or a black
hole behind. - BThey turn into a planetary nebula.
- CThey explode in a supernova explosion and leave a white dwarf star behind.
- DVery massive stars never die. They keep on producing energy forever.
- AThey explode in a supernova explosion and leave a neutron star or a black
55What is the heaviest nucleus that can be formed in the core of very massive stars?
- AUranium.
- BCarbon.
- CHelium.
- DIron.
56Very heavy elements such as uranium, gold and mercury are formed in ...?
- AThe Big Bang.
- BThe core of low-mass stars.
- CThe core of high-mass stars.
- DSupernova explosions
57Astronomers use supernovae type Ia to directly measure ...?
- AThe speed of light in distant galaxies.
- BTemperature of nearby galaxies.
- CDistance to faraway galaxies .
- DRotation curve of the Milky Way galaxy.
58Which of the following describe the early stages in the formation of stars in the
right order?- ACold molecular gas, Gravitational collapse, formation of disk, protostar phase
- BHot molecular gas, Gravitational collapse, formation of disk, protostar phase
- CProtostar phase, hot molecular gas, gravitational collapse, formation of disk
- DCold molecular gas, protostar phase, gravitational collapse, formation of disk
59Why is it difficult to find protostars using optical telescopes?
- ABecause protostars do not exist in the nearby Universe
- BBecause protostars are shrouded by gas and dust
- CBecause protostars are black
- DBecause protostars are much smaller than the smallest planets
60What is the composition of the gas between stars?
- AIt is all made of Hydrogen and Helium
- B98% Hydrogen and Helium and 2% heavier elements
- C50% Hydrogen and 50% Helium
- DIt is mostly made of metals
61Why don't we have any star less massive than 0.08 times the mass of the Sun?
- ABecause gravity is not strong enough to cool down the gas at the center of
these objects - BBecause all of these objects explode before being able to form a star
- CBecause gravity is so strong in these objects that prevents the formation of
a star - DBecause their cores never reach hydrogen fusion temperatures
- ABecause gravity is not strong enough to cool down the gas at the center of
62 What is the Hertzsprung-Russell (H-R) diagram?
- AIt is a plot of luminosity versus temperature where stars are located
- BIt is a plot of chemical composition of the stars
- CIt is a plot of luminosity versus number of stars
- DIt is a plot of mass versus chemical composition
63What mechanism prevents stars of mass less than 0.08 times the mass of the Sun from collapsing
under the influence of gravity?- ARadiation pressure
- BDegeneracy pressure
- COsmotic pressure
- DPeer pressure
64What element is produced in the final stages of fusion inside a star similar to the Sun?
- AHelium
- BCarbon
- CHydrogen
- DPhotons
65 What is the definition of half-life for materials that undergo radioactive decay?
- AIt is the time it takes for the atoms of the material to disappear completely
- BIt is the time it takes for half of the atoms in a given sample of the material to decay
- CIt is the time since the big bang for all radioactive materials
- DIt is the time it takes for 80 percent of the atoms of the material to decay
66What is radioactive dating used for?
- ATo measure the distance to objects
- BTo measure the temperature of material
- CTo measure the age of material
- DTo measure the metallicity of material
67Which of the following should be among the predictions of any model of the solar
system’s formation?- ARocky, dense planets must be found close to the sun
- BPlanets must go around the sun in more or less the same plane
- CThere should exist a lot of gas and dust in inner parts of the solar system close to the sun
- DRocky, dense planets must be found close to the sun &
Planets must go around the sun in more or less the same plane
68Which of the following is the most successful model of solar system formation?
- ASolar Nebula Theory
- BCollision with another star Theory
- CDark Matter Theory
- DBig bang Theory
69One explanation of why the planets near the Sun are composed mainly of rock and iron is
that ...?- AThe Sun’s magnetic field attracted all the iron in the young Solar System into the
region around the Sun - BThe Sun is made mostly of iron, so gas ejected from its surface cooled and
condensed to form iron rich planets - CThe Sun’s heat made it difficult for other substances such as ices and gases
to condense near it - DThe Sun’s gravity pulled iron and other heavy material inward and allowed the
lighter material to float outward
- AThe Sun’s magnetic field attracted all the iron in the young Solar System into the
70 What was the separation process in the formation of planets during which denser material
sank toward the center of bodies and lighter material floated toward the surface?- AIntegration
- BDifferentiation
- CMaterialization
- DGlobalization
71What are the two main processes that could have formed the atmosphere of planets?
- ACondensation and Outgassing
- BOutgassing and Collisions
- CMelting and Collisions
- DVaporization and Melting
72Why is it difficult for smaller planets to form an atmosphere?
- ABecause smaller planets do not get hot enough to have an atmosphere
- BBecause smaller planets have a different chemical composition not allowing them to have an atmosphere
- CBecause small planets have weak gravity that makes it difficult for them to
hold on to the atmospheres they form - DBecause smaller planets form at much earlier stages in the formation of Solar System
73What are the main methods for detecting extra solar planets (Exoplanets)?
- ADoppler Method, transit method and gravitational lensing
- BGravitational lensing, laser method and Doppler method
- CDoppler method, transit method and Dark Matter method
- DTransit method, Doppler method and laser method
74How do we detect planets using the transit method?
- ABy looking at the blue shifting and red shifting of light
- BBy looking at the change in brightness as the planet moves in its orbit
around the star - CBy looking at the gravitational effects of the star on planet
- DBy looking at the direct images taken from the planet
75What parameters determine the environment of a planet?
- AMass and size of the planet.
- BThe role of atmosphere.
- CThe role of sunlight.
- DAll of the above.
76Which statement is NOT correct about outer planets in the solar system?
- AThey have many moons.
- BThey are mostly made up of rocks and metals.
- CThey are bigger and more massive than inner planets.
- DThey have no solid surface.
77The Earth's crust is mostly made up of ...?
- AOxygen and hydrogen.
- BHydrogen and helium.
- COxygen and silicon.
- DIron and nickel.
78In which layer of the Earth's interior, heat is mainly transported to upper layers by
convection?- AThe crust.
- BThe mantle.
- CThe solid inner core.
- DCrust and solid inner core.
79Earthquakes and volcanoes on Earth are more active near ...?
- APlate boundaries.
- BBottom of the oceans.
- CContinents.
- DThe Earth's core.
80What is the main source of the Earth's magnetic field?
- ASolar flares.
- BCurrent flows in the molten iron core.
- CIron content of the Earth's crust.
- DMotion of charged particles in the atmosphere.
81Where is the the ''frost line'' (the division between the inner warm part and outer cold parts of the
solar system) located?- Abetween the orbits of Saturn and Neptine
- Bbetween the orbits of the Earth and Venus
- Cbetween the orbits of Earth and Mars
- Dbetween the orbits of Mars and Jupiter.
82What is believed to be the origin of Earth's Moon?
- AA catastrophic impact with a Mars-sized object 4.5 billion years ago
- BOrbital capture of a passing celestial body
- CAliens put it there
- DIt formed the same time Earth had formed.
83Which statement is correct?
- AThere was liquid water on the Earth’s surface 4.5 billion years ago.
- BThere is more CO2 in the atmosphere than in the oceans now.
- CThere is more Oxygen in the atmosphere now than 4 billion years ago.
- DOceans formed on the surface of the Earth two thousand years ago.
84What is the origin of Oxygen in the Earth’s atmosphere?
- AComets and asteroids
- BPlants and bacteria
- CVolcanoes
- DThe Sun
85If the thermal velocity of atmospheric gas is ___ the escape velocity of the planet, the
atmosphere can escape.- AHalf of
- BMuch less than
- COne fourth of
- DClose to
86The Earth’s atmosphere is mostly composed of ___.
- AHydrogen
- BOxygen
- CNitrogen
- DMethane
87The higher the elevation on Earth, ___ the atmospheric pressure.
- AThe same
- BThe higher
- CThe lower
- DThe colder
88Which part of the Electromagnetic spectrum is more absorbed by Greenhouse gasses?
- AUltraviolet
- BRadio
- CInfrared
- DGamma rays
89What is some evidence supporting that all continents were once united into one single continent?
- ADistinctive fossil groups found in Africa and South America
- BSimilarities of geological features and rock ages on opposite sides of the Atlantic Ocean
- CSimilarities in shorelines
- DAll of the above
90Why was the continental drift hypothesis rejected at the time of proposal?
- ASimilarities of fossils on both sides of the Atlantic Ocean
- BInadequate mechanism of continental movement
- CSimilarities of rock ages in some continents
- DContinental shoreline similarities
91Which of the following supports the “seafloor spreading” hypothesis?
- ASeafloor is younger near the ridges
- BThe ages of the seafloor are symmetric on either side of the ridges
- CMagnetic polarity reversals are recorded in ocean floor
- DAll of the above
92What mainly causes the Earth’s crust to be dynamically moving?
- AConvectional currents in the mantle
- BTidal forces on the Earth’s crust
- CEarthquakes and volcanoes
- DMeteorite impacts
93The Mid-Atlantic ridge is a result of ___?
- ATransform faults
- BConvergent plate boundaries
- CDivergent plate boundaries
- DSide-to-side plate boundaries
94Subduction of oceanic plates and formation of volcanic mountains, accompanied by earthquakes
is a result of ___?- AConvergent plate boundaries
- BDivergent plate boundaries
- CSide-to-side plate boundaries
- DTransform faults
95In ___, the continental lithosphere cannot recycle. The crust thickens creating high mountains, a
wide plateau, and severe earthquakes.- AContinent-continent convergence
- BOcean-continent convergence
- COcean-ocean convergence
- DOcean-ocean divergence
96Which of the following correctly describes the geological time scales in order of increasing
divisions of time?- AEon, Era, Period, Epoch
- BPeriod, Epoch, Era, Eon
- CEpoch, Period, Era, Eon
- DEra, Eon, Period, Epoch
97Which of the following is NOT true about the early Earth?
- AViolent impacts were fairly common.
- BEarly Earth was relatively cool.
- CEarth was very hot at the beginning.
- DHeavier elements sank to the center and lighter elements moved toward the surface.
98The correct description of the Earth’s layers from inside out is given in which of the following
choices?- ALiquid iron inner core, solid iron outer core, mantle, crust
- BMantle, crust, solid iron inner core, liquid iron outer core
- CLiquid iron outer core, solid iron inner core, mantle, crust
- DSolid inner iron core, liquid outer iron core, mantle, crust
99What is believed to be the reason for the late Heavy Bombardment between 4 to 3.8 billion
years ago?- AChange in the orbits of the Jovian planets.
- BChange in the temperature of the Sun
- CComplete reversal of the orbits of planets due to a nearby star.
- DChange in the chemical composition of the Sun.
100When the Earth formed and the crust first cooled and solidified, what was the dominant rock
type?- AIgneous rock
- BMetamorphic rock
- CSedimentary rock
- DBoth a and b
101What is the most common rock type on the Earth today?
- AIgneous rock
- BMetamorphic rock
- CSedimentary rock
- DBoth a and b
102Which of the following are possible causes for mass extinctions?
- AMassive meteor impact
- BGlobal rise or fall in the Earth’s temperature
- CIncreased global volcanic activity
- DAll of the above
103Ozone layer in the atmosphere blocks which part of the Sun’s light spectrum more?
- AUltraviolet
- BRadio
- CGamma ray
- DVisible
104When did oxygen start building up in the Earth’s atmosphere?
- AWhen the Earth was forming.
- BWhen the Earth was half its present age.
- CWhen dinosaurs became extinct.
- DWhen the Universe was half its present age.
105Why is there less CO2 in the atmosphere in the summer months, compared to the winter
months?- APeople greatly decrease their CO2 emissions in the summer.
- BThe Earth is farther away from the Sun in the summer.
- CThere is more direct sunlight in the summer.
- DMany plants die in the winter, so there are more plants that are photosynthesizing in
the summer.
106The smallest unit of life that can function independently and perform all the necessary functions
of life is ___.- AAn organ
- BA cell
- CAn atom
- DA tissue
107A/An ___ cell has a central control structure called a nucleus, which contains the cell’s DNA.
- AProkaryotic
- BArchaean
- CViral
- DEukaryotic
108Different independent parts of a eukaryotic cell that are assigned different functions are called
___.- AOrgans
- BNuclei
- COrganelles
- DDNAs
109What is correct about plant and animal cells?
- AAnimal cells have mitochondria, while plant cells have both mitochondria and
chloroplasts. - BPlant cells have mitochondria, while animal cells have both mitochondria and
chloroplasts. - CAnimal and plant cells have chloroplasts.
- DAnimal and plant cells lack chloroplasts.
- AAnimal cells have mitochondria, while plant cells have both mitochondria and
110Mitochondria are able to metabolize ___.
- APhosphorus in the presence of oxygen.
- BSugar in the presence of oxygen.
- CSugar in the presence of sunlight.
- DSugar in the presence of both sunlight and oxygen.
111According to Endosymbiosis Theory, Eukaryotic cells are formed by:
- AThe folding of a membrane or tissue.
- BThe combination of two or more prokaryotic cells.
- CThe division of a bigger cell into smaller eukaryotic cells.
- DPlant cells.
112Which of the following is a common characteristic of life?
- AGrowth
- BMetabolism
- CReproduction
- DAll of the above
113Living things are made up of ___ amino acids.
- ALeft-handed
- BRight-handed
- CBoth left and right-handed
- DNeither left nor right-handed
114What are the two main varieties of nucleic acids?
- ADNA and RNA
- BSugars and lipids
- CLipids and carbohydrates
- DLipids and steroids
115Which of the following is a genetic material that stores information for their own replication and
for the sequence of amino acids in proteins?- ARNA
- BPhospholipids
- CDNA
- DMonosaccharaides
116DNA bases are connected with ___?
- AMetallic bonds
- BCovalent bonds
- CHydrogen bonds
- DIonic bonds
117 What element is the main basis for life on Earth?
- AOxygen
- BWater
- CCarbon
- DSilicon
118Three main types of cells are _____:
- AProkaryotic, Eukaryotic, and Archaean.
- BBacterias, Archaeas, and Prokaryotic.
- CBacterias, Archaeas, and Animal.
- DAnimal, Plant, and Prokaryotic.
119These types of cells have qualities of both Prokaryotes and
Eukaryotes:- AArchaean Cells
- BViral Cells
- CBacterias
- DPlant Cells
120The main kingdoms of eukaryotic cells are:
- ABacteria and Archaea
- BPlantae, Animalia, Fungi, and Protista
- CBacteria, Archaea, and Protista
- DBacteria, Archaea, Animalia, and Fungi
121 ______ cells are usually found in harsh environments and may use inorganic chemicals to generate energy.
- ABacterial
- BEukaryotic
- CArchaean
- DAnimal
122How many types of amino acids are used by life on Earth?
- A3
- B10
- C20
- D25
123 Adenosine triphosphate (ATP) is used by cells for what purpose?
- ARegulating osmosis
- BStoring energy
- CManaging the expression of DNA
- DCommunicating with other cells
124How do the structures of DNA and RNA compare?
- Aboth DNA and RNA are double-helix shaped
- BDNA is double-helix shaped while RNA is single-stranded
- CRNA is double-helix shaped while DNA is single-stranded
- Dboth DNA and RNA are single-stranded
125What aspect of a DNA molecule is responsible for encoding
information?- Athe sugar-phosphate backbone
- Bthe nitrogenous base pairs
- Cthe secondary structure
- Dthe tertiary structure
126Proteins are built from long chains of which molecules?
- ACarbohydrates
- BLipids
- CAmino Acids
- DWater molecules
127What nucleotides are found in DNA?
- ACytosine, thymine, adenine, guanine
- BCytosine, uracil, adenine, guanine
- CThymine, adenine, guanine
- DCytosine and guanine
128What property or properties of water make it essential for life on
Earth?- Aits cohesive and adhesive properties
- Ba high heat capacity
- Cits polar solvent nature, facilitating chemical reactions
- Dall of these answers
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- Description
- Origins 037 final review of all homework questions. I didn't have a chance to type homework 8 in here. So that homework is excluded
- Author
- Jade P
- Language
- English
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