846261
Descripción
Test por michelle_simms_w, actualizado hace más de 1 año
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Creado por michelle_simms_w
hace casi 10 años
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Pregunta 1
Pregunta
What is phylogeny?
Respuesta
-
Desent with modification
-
Evolutionary relationships among organisms
-
Classification of organisms and determining evolutionary relationships
Pregunta 2
Pregunta
Which domain of life does mitochondria belong to?
Respuesta
-
Eukayra
-
Archeaea
-
Bacteria
Pregunta 3
Pregunta
Which domain is most closely related to archaea
Respuesta
-
viruses
-
bacteria
-
eukarya
Pregunta 4
Pregunta
How many chromosomes do Prokaryotes have?
Respuesta
-
1
-
mulitiple
Pregunta 5
Pregunta
Which of the followings are common features in cells of all domains
Respuesta
-
Cell membrane ,ribosome ,chromosome/sand cytosol (semi-fluid substance)
-
Cytoplasm, centromeres, mitochondria and nucleus
-
endoplasmic renticuluim, plasma membrane, Golgi apparatus and lysosomes
-
nuclear enveolope, vesicles, vacuoles, chloropyll
Pregunta 6
Pregunta
Eukaryotes.....
Respuesta
-
Have DNA enclosed in a membrane bound nucleus
-
Are small and less complex
-
Are large and more complex
-
Have no organelles
-
Are green
-
Have organelles
Pregunta 7
Pregunta
DNA floats around in prokaryotes
Respuesta
- True
- False
Pregunta 8
Pregunta
How many lipid bilayers do cell membranes have
Respuesta
-
1
-
2
-
3
-
4
Pregunta 9
Pregunta
Which image best describes the cell membrane
Respuesta
-
cell countImage:need-a-minute (image/jpg)
-
selective barrier
-
free passageImage:come_on_in (image/jpg)
Pregunta 10
Pregunta
O2 and CO2 pass freely through the membrane of a cell because they are substances which are...
Respuesta
-
polar
-
non polar
-
bi polar
-
Sligthly negatively charged
-
Slightly positively charged
Pregunta 11
Pregunta
Cholesterol is increases the fluidity of the phosplipid bilayer
Respuesta
- True
- False
Pregunta 12
Pregunta
Which domain rRNA selection composed of 5s,16s,and 23s
Respuesta
-
prokaryotes
-
eukaryotes
Pregunta 13
Pregunta
Eukaryotes have ribosomes free just in the cytoplasm
Respuesta
- True
- False
Pregunta 14
Pregunta
Eukaryotic DNA is linear and found within the nucleus
Respuesta
- True
- False
Pregunta 15
Pregunta
What is the name of the complex of proteins and chromosomes
Respuesta
-
chromatin
-
centrosome
-
chromatosin
Pregunta 16
Pregunta
What is the name of the protein which holds the shape of the nucleus
Respuesta
-
nuclear lamina
-
nuclear envelope
-
chromatin
Pregunta 17
Pregunta
Where is RNA synthesized?
Respuesta
-
Nuclear pores
-
Nucleous
-
Chromatin
Pregunta 18
Pregunta
Bacterial DNA is found in 2 locations
Respuesta
- True
- False
Pregunta 19
Pregunta
Plasmids...
Respuesta
-
are straight
-
Contain genetic information
-
Are larger that the bacterial chromosome
-
Are smaller that the bacterial chromosome
-
Can exchange DNA between bacterial cells beneficial for antibiotic resistance
Pregunta 20
Pregunta
Which systems and organelles are not found in animal cells that are found in plant cells
Respuesta
-
ribosomes
-
chloroplasts
-
mitochondrion
-
microvilli
-
central vacuole and tonoplast
-
cell wall
-
centrsome
-
plasmodesmata
Pregunta 21
Pregunta
The cytoplasm doesn't contain organelles
Respuesta
- True
- False
Pregunta 22
Pregunta
microfilaments are the largest fibers in the cytoskeleton
Respuesta
- True
- False
Pregunta 23
Pregunta
What are the functions for the cytoskeleton
Respuesta
-
Anchor the organelles
-
uses ATP to move vesicles around the cells
-
make the cell bendy
-
link to one another to strenghten cell stucture
-
Regulate biochemical activites
Pregunta 24
Pregunta
Mirco tubules are hollow
Respuesta
- True
- False
Pregunta 25
Pregunta
what is the function of the microtubules
Respuesta
-
shaping the cell
-
moving the whole cell
-
Guiding movement of organelles
-
regulate cell temperature
-
Separating chromosomes during cell division
-
control the beating of cilia and flagella
Pregunta 26
Pregunta
The centrosome is made up of two centrioles
Respuesta
- True
- False
Pregunta 27
Pregunta
The centrosome is a
Respuesta
-
microtubule-organizing center
-
microtubule- diassembling center
-
microtubule-destuction center
Pregunta 28
Pregunta
Microfilaments are solid rods comprising a twisted double
chain of
Respuesta
-
chtin subunits
-
actin subunits
Pregunta 29
Pregunta
the 3D cortex of the microfiliaments to change the cells shape
Respuesta
- True
- False
Pregunta 30
Pregunta
bundles of the microfilament make up the core ore microvilli in the intestinal cells
Respuesta
- True
- False
Pregunta 31
Pregunta
In muscle cells...
Respuesta
-
Hundreds of actin filaments are arranged parallel to one another
-
Thousands of actin filaments are arranged parallel to one another
-
Millions of actin filaments are arranged parallel to one another
Pregunta 32
Pregunta
Myosin and ...... help in the movement of cells and are very important in muscles
Respuesta
-
Actin
-
Chitin
-
Phosphourous
Pregunta 33
Pregunta
What are the functions of the intermediate filaments
Respuesta
-
Maintence of cell shape
-
cytoplasmic streaming
-
formation of nuclear lamina
-
anchorage of nucleus and other organelles
-
muscle contaction
Pregunta 34
Pregunta
What the difference between the smooth and rough endoplasmic reticulum
Respuesta
-
rough has ribsomes are located on the outside of the organelle
-
they are made up of different components
Pregunta 35
Pregunta
smooth ER secretes glycoprotiens
Respuesta
- True
- False
Pregunta 36
Pregunta
What are the functions of the smooth ER
Respuesta
-
secrete glycoprotiens, distributes transport vesicles- proteins surrounded by a membrane
-
synthesizes lipids, metabolizes carbohydrates, deoxifies drugs and poisons, stores calcium ions
Pregunta 37
Pregunta
which organelles make up the endomembrane sytstem
Respuesta
-
Nuclear envelope • Plasma membrane • Endoplasmic reticulum • Golgi apparatus • Lysosomes • Vacuoles
-
cell membrane - ribosome - chromosome/s - cytosol (semi-fluid substance)
Pregunta 38
Pregunta
The Golgi apparatus manufactures.....
Respuesta
-
micromolecules
-
phospolipids
-
macromolecules
-
nucleic aids
Pregunta 39
Pregunta
what is the name of the process where Vesicles leave golgi and may fuse with plasma membrane to
secrete contents
Respuesta
-
exocytosis
-
eutytropic
-
sterotropic
-
cytokensis
Pregunta 40
Pregunta
lysomes are sacs of ...... enzymes which can digest macromolecules (proteins, fats,
polysaccharides, nucleic acids
Respuesta
-
sulpuric
-
hydrolytic
-
nitrite
Pregunta 41
Pregunta
what is the name given when a cell engulfs another
Respuesta
-
autophagy
-
phagocytosis
-
cytokenisis
Pregunta 42
Pregunta
autophagy is the process where lysomes
Respuesta
-
Use enzymes to recycle the cell’s own organelles and macromolecules
-
fuse with the food vacuole and digests the molecules
-
Manufactures certain macromolecules
Pregunta 43
Pregunta
The vacuole contains, oxygen, carbon and chlorophyll
Respuesta
- True
- False
Pregunta 44
Pregunta
both eukaryotes and prokaryotes have mitochondria
Respuesta
- True
- False
Pregunta 45
Pregunta
Mitochondria is where...
Respuesta
-
starch is converted into glucose
-
celluar respiration through the generation of ATP
-
nutrients passes through the nuclear envelope
Pregunta 46
Pregunta
What is the name for the double membrane: a smooth outer membrane and an inner membrane folded
Respuesta
-
Cristae
-
peroxisome
-
medula
Pregunta 47
Pregunta
mitochondria have their own ribosomes and DNA
Respuesta
- True
- False
Pregunta 48
Pregunta
Chlorophyll contain chloroplast
Respuesta
- True
- False
Pregunta 49
Pregunta
Most cells synthesize and secrete materials that are external to the plasma membrane
Respuesta
- True
- False
Pregunta 50
Pregunta
The cell walls of Fungi are made of
Respuesta
-
Chitin
-
cellulose
-
starch
Pregunta 51
Pregunta
which of the following are is NOT in the extra cellular matrix of animal cells
Respuesta
-
collegen
-
actin
-
proteoglycans
-
fibronectin
Pregunta 52
Pregunta
he extracellular matrix bind to the receptor proteins in the plasma membrane called integrins
Respuesta
- True
- False
Pregunta 53
Pregunta
Which 2 of the following are NOT functions of the ECM
Respuesta
-
Support
-
Flexibility
-
Adhesion
-
Movement
-
fixed postioning
-
regulation
Pregunta 54
Pregunta
Which of the following is a plant cell junction
Respuesta
-
Gap junctions
-
Plasmodesmata:
-
•Desmosomes
-
Tight junctions
Pregunta 55
Pregunta
prokaryotes have organelles
Respuesta
- True
- False
Pregunta 56
Pregunta
which of the following are found inside a microbial cells
Respuesta
-
Cytoplams
-
Centrsomes
-
Flagella
-
Pili
-
Mitochondria
-
Capsule/slime layer
-
Cytoplasmic membrane and Cell wall
Pregunta 57
Pregunta
Magnetosomes are magnetic enclusions in cells allow
Respuesta
-
microogramism move around magnetic lines
-
help the cell wall stay in place
-
remove unwanted information from the cell
Pregunta 58
Pregunta
Gas vesicles sink in prokaryotic cells
Respuesta
- True
- False
Pregunta 59
Pregunta
Gas vesicle are bouyant as it allows the microograsims to move up and down o the cytoplasm allowing for optimum light absorption. As some microorganisms photosynthesis
Respuesta
- True
- False
Pregunta 60
Pregunta
Prokaryotes produce spores for reporduction
Respuesta
- True
- False
Pregunta 61
Pregunta
Which of the following isnt a factor for the dispersal of spore in hardy environment soil
Respuesta
-
poluten
-
rainfall increases or decreases
-
high acidity
-
temperature drop
-
nurtrient level falls
Pregunta 62
Pregunta
The composition of peptidoglycan in bacteria is..
Respuesta
-
G+ve cells have ~ 70 G-ve cells have ~ 30
-
G+ve cells have ~ 50 G-ve cells have ~50
-
G+ve cells have ~90 G-ve cells have ~ 10
Pregunta 63
Pregunta
antibiotic drugs target the cell walls of bacteria, which one is easiest to destoy
Respuesta
-
Gram +
-
Gram -
Pregunta 64
Pregunta
Capsule/slime layers.....
Respuesta
-
to stick cells together and as a food reserve
-
to protect the cell from desiccation, and from chemicals
-
increase the number of cells being produced
-
stop the cells sticking together and dry out the cell
Pregunta 65
Pregunta
the movement of flagella is based on
Respuesta
-
proton motor force
-
ATP release
-
metabolism of glucose
Pregunta 66
Pregunta
to benefit cellular exchange bacterial will have
Respuesta
-
pili
-
fimbriae
Pregunta 67
Pregunta
what do Archaea and eukarya have in common but not bacteria
Respuesta
-
flagella
-
histomes
-
gas vesicle
-
endospores
-
sensitivity antibiotics
Pregunta 68
Pregunta
Acheae are the highest tolerating domain
Respuesta
- True
- False
Pregunta 69
Pregunta
Endosymbiont theory is the idea that Mitochondria and chloroplasts took up residence in Eukarya eons ago
- First a non-photosynthetic prokaryote formed an endosymbiont relationship with a host - Subsequently, a photosynthetic prokaryote was engulfed Result = a single organism
Respuesta
- True
- False
Pregunta 70
Pregunta
what would you NOT consider to define life?
Respuesta
-
order/organisation
-
reproduction
-
response to environment
-
energy utilisation and production (metabolism)
-
homeostasis
-
evolution
-
respiration
-
being complety reliant on from others
Pregunta 71
Pregunta
what is a virus
Respuesta
-
piece of DNA or RNA covered in a protein coat
-
a nucleus with a cell wall and mitochondria
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