Test
Partial Exam 2
Este test tiene tipos de pregunta que se abren en el reproductor de siempre.
Preguntas del test (60)
1Label the parts of the cell membrane.
- Aprotein channel
- Bcholesterol
- Cglycolipid
- Dperipheral protein
- Eintegral protein
- Ffilaments of cytoskeleton
- Gsurface protein
- HAlpha-Helix protein
- Ihydrophobic tails
- Jphospholipid molecule
- Kphospholipid bilayer
- Lhydrophilic heads
- Mcarbohydrate
- Nglycoprotein
- Oglobular protein
2How many layers does the cell membrane have?
[blank_start]__[blank_end]- A2
3The cell membrane is made of phospholipid molecules made of:
HEAD - [blank_start]__[blank_end]
TAILS - [blank_start]__[blank_end]- Ahydrophobic
- Bhydrophilic
- Chydrophilic
- Dhydrophobic
4Which side of the phospholipid faces the exterior of the membrane?
- Ahead
- Btail
5What are the main functions of the cell membrane?
- AIsolate and protect the cell
- BKeep a rigid shape for the cell
- CMake the cell more soluble in water
- DRegulate the exchange of substances
- ECommunicate with other cells
- FSynthesize proteins through ribosomes
6Which part of the cell membrane has the following functions:
• Determine membrane fluidity
• Make the bilayer stronger
• Make bilayer less permeable to water-soluble substances- Aphospholipid molecule
- Bcholesterol
- Cintegral protein
- Dglycoprotein
7Relate the proteins of the cell membrane to their main characteristic.
[blank_start]__[blank_end]: hydrophobic and hydrophilic regions, crosses the whole bilayer
[blank_start]__[blank_end]: bound to the surface
[blank_start]__[blank_end]: carbohydrate groups attached to them- Aintegral proteins
- Bperipheral proteins
- Cglycoproteins
8Relate the proteins of the cell membrane to their function.
[blank_start]__[blank_end]: mostly glycoproteins, identification tags, surface attachment sites
[blank_start]__[blank_end]: movement of hydrophilic molecules through plasma membrane
[blank_start]__[blank_end]: trigger cellular responses when specific molecules in the extracellular fluid bind to them- Arecognition proteins
- Btransport proteins
- Creceptor proteins
9[blank_start]__[blank_end] proteins cover hormone binding sites and enzymatic action.
[blank_start]__[blank_end] proteins cover cell adhesion and cell-to-cell communication.
[blank_start]__[blank_end] proteins cover channels for passive transport and pumps for active transport- AReceptor
- BRecognition
- CTransport
10Label the processes of the proteins in the cell membrane.
- ATransport
- BEnzymatic activity
- CSignal transduction
- DCell-cell recognition
- EIntercellular joining
- FCytoskeleton and ECM attachment
11Choose whether the following characteristics belong to active or passive transport.
• Does not require energy: [blank_start]__[blank_end]
• Requires ATP energy: [blank_start]__[blank_end]
• Occurs against concentration gradient: [blank_start]__[blank_end]
• Occurs along concentration gradient: [blank_start]__[blank_end]
• Diffusion, facilitated diffusion and osmosis belong to [blank_start]__[blank_end]
• Sodium-potassium pump, exocytosis and endocytosis belong to [blank_start]__[blank_end]- AActive transport
- BPassive transport
- CActive trasport
- DPassive transport
- EActive transport
- FPassive transport
- GActive transport
- HPassive transport
- IActive transport
- JPassive transport
- KActive transport
- LPassive transport
12Simple diffusion:
- AActive transport
- BPassive tranport
- CMoves from regions of high concentration to regions of low concentration
- DInvolves O2 and CO2
- ERequires the help of a protein
- FDoes not require help of a protein
13Facilitated diffusion is a form of transportation that uses...
- Aglycoproteins
- Bcarbohydrates
- Ccarrier proteins
- Dcholesterol
14What molecules can be transported through facilitated diffusion?
- Aions
- Bamino acids
- Cproteins
- Denzymes
- Emonosaccharides
15A [blank_start]__[blank_end] solution means that there is a high concentration of solute in the water.
A [blank_start]__[blank_end] solution means that there is a low concentration of solute in the water.
An [blank_start]__[blank_end] solution means that there is an even concentration of solute in the water.- Ahypertonic
- Bhypotonic
- Cisotonic
- Dhypertonic
- Ehypotonic
- Fisotonic
- Gisotonic
- Hhypotonic
- Ihypertonic
16Osmosis is a type of [blank_start]__[blank_end] transport, in which [blank_start]__[blank_end] molecules move from [blank_start]__[blank_end] solutions to [blank_start]__[blank_end] solutions.
- Apassive
- Bwater
- Chypotonic
- Dhypertonic
17If a cell is under water with a lot of solutes in it, it will release water and shrink.
- AVerdadero
- BFalso
18Osmosis requires a protein called...
- Aglycoprotein
- Bphospholipid
- Creceptor
- Daquaporin
19Label the following transport processes.
- ASimple diffusion
- BFacilitated diffusion
- COsmosis
20Animal cells have a much higher concentration of [blank_start]__[blank_end] ions than the exterior environment. [blank_start]__[blank_end] ions are more concentrated in extracellular environment. The cell keeps this condition using [blank_start]__[blank_end].
- Apotassium
- Bsodium
- Csodium
- Dpotassium
- ESodium-potassium pump
- FHomeostasis
- GOsmosis
21Which of the following are types of active transport?
- ASodium-potassium pump
- BOsmosis
- CFacilitated diffusion
- DEndocytosis
- EExocytosis
- FSimple diffusion
22Endocytosis allows macromolecules to enter the cell, while exocytosis allows them to leave.
- AVerdadero
- BFalso
23During endocytosis, a portion of the [blank_start]__[blank_end] is pinched off to enclose macromolecules, and is called a [blank_start]__[blank_end]. Then, the ends of the membrane reattach.
- Amembrane
- Bvesicle
24Endocytosis can be divided into:
[blank_start]__[blank_end]: works with solids
[blank_start]__[blank_end]: works with liquids- Aphagocytosis
- Bpinocytosis
25During exocytosis, __ sends the matter in form of vesicle to the __, which packs it and releases it.
- Aa ribosome - Golgi apparatus
- Bthe Golgi apparatus - rough endoplasmic reticulum
- Cthe rough endoplasmic reticulum - Golgi apparatus
- Dthe rough endoplasmic reticulum - ribosomes
26The cell cycle describes the behavior of cells as they grow and [blank_start]__[blank_end]. During this process, a [blank_start]__[blank_end] cell produces genetically identical cells called [blank_start]__[blank_end] cells.
- Adivide
- Bmother
- Cdaughter
27Label the stages of the cell cycle going through mitosis.
- AG0
- BG1
- CS
- DG2
- EInterphase
- FM
- GProphase
- HMetaphase
- IAnaphase
- JTelophase
- KCytokinesis
28What phase does a cell spend most of the time in?
- AInterphase
- BMitosis
- CMeiosis
- DS Phase
29Which of the following are stages of Interphase?
- AG0
- BProphase
- CG1
- DCytokinesis
- EG2
- FS
30Relate the stages of cell cycle to their description.
• [blank_start]__[blank_end]: Growth of the cell, organelles increase in number, centrosome replicates.
• [blank_start]__[blank_end]: DNA replication, pair of chromosomes remain attached.
• [blank_start]__[blank_end]: Growth of the cell and preparation for mitosis, organelles increase in number, DNA begins to condense.
• [blank_start]__[blank_end]: Resting phase, the cell is neither dividing nor preparing for division.- AG1
- BS
- CG2
- DG0
- EM
- FI
31When the DNA starts condensing, [blank_start]__[blank_end] become [blank_start]__[blank_end].
- Achromatin
- Bchromosomes
32During mitosis, which organelles replicate and migrate to opposite ends of the cell?
(Tip: 2 organelles)- Acentrioles
- Btubules
- Cribosomes
- Dcentrosomes
33What is the mitotic spindle?
- AMicrotubules formed by centrioles that move the chromosomes during cell division
- BMicrotubules formed by centrioles to disintegrate the cell membrane during cell division
34What are the four phases of mitosis?
1.- [blank_start]__[blank_end]
2.- [blank_start]__[blank_end]
3.- [blank_start]__[blank_end]
4.- [blank_start]__[blank_end]- AProphase
- BMetaphase
- CAnaphase
- DTelophase
35During this mitosis phase...
• Chromatin fibers coil tightly to form chromosomes.
• Nuclear envelope disintegrates, nucleoli disappear.
• Mitotic spindle forms.
• Centromere of the chromosomes attaches to spindle.
• Centrosomes move towards opposite poles and lengthen microtubules.- AProphase
- BMetaphase
- CAnaphase
- DTelophase
36During this mitosis phase...
• Chromosomes move to the equator of the cell.
• Their centromere lie on the plate.
• Their movement is due to the spindle.
• Centrosomes are now at the opposite poles.- AProphase
- BMetaphase
- CAnaphase
- DTelophase
37During this mitosis phase...
• Sister chromatids are split, and they move to opposite poles.
• The microtubules shorten and pull the split chromosomes.
• At the end, each pole has a complete, identical set of chromosomes.- AProphase
- BMetaphase
- CAnaphase
- DTelophase
38During this mitosis phase...
• Nuclear membrane reforms around each set of chromosomes.
• Chromosomes start to uncoil to become chromatin.
• Nucleoli reappear.
• Spindle disappears.
• The cell is elongated (like an 8 sideways), and ready for cytokinesis.- AProphase
- BMetaphase
- CAnaphase
- DTelophase
39Once the nuclear division of the cell occurs, the cell undergoes [blank_start]__[blank_end].
- Acytokinesis
40Cytokinesis is a part of mitosis.
- AVerdadero
- BFalso
41Label each stage of mitosis.
- AProphase
- BMetaphase
- CAnaphase
- DTelophase
42What type of cells are formed during meiosis?
- Asomatic cells
- Borgan cells
- Cgametes
43The cells produced during meiosis are [blank_start]__[blank_end], which means that they have [blank_start]__[blank_end] the number of chromosomes. The genetic information of the daughter cells [blank_start]__[blank_end].
- Ahaploid
- Bdiploid
- Chalf
- Ddouble
- Ehas a unique mixture
- Fis always the same
44Somatic cells have [blank_start]__[blank_end] chromosomes.
Gametes (or sex cells) have [blank_start]__[blank_end] chromosomes.- A46
- B23
45What are homologous pairs?
- ATwo chromosomes that pair up during meiosis
- BTwo chromosomes that pair up during mitosis
- CAll the chromosomes in a cell
- DThe two cells that form after cell division
46How many divisions happen in meiosis?
[blank_start]__[blank_end]- A2
47How many cells does meiosis end with?
[blank_start]__[blank_end]- A4
48In prophase I (meiosis), there is genetic recombination by crossing over. The chromosomes in an homologous pair exchange a piece of their chromatids.
- AVerdadero
- BFalso
49During metaphase I, the chromosomes line up in homologous pairs.
- AVerdadero
- BFalso
50What are the chromosomes like at the end of meiosis I for each new cell?
- AThere are 23 (haploid)
- BEach chromosome has sister chromatids
- CThey are genetically recombined
- DThere are 46 (diploid)
- EEach chromosome has single chromatids
51Between meiosis I and meiosis II, there is duplication of DNA (S phase)
- AVerdadero
- BFalso
52There is no difference between the processes of mitosis and meiosis II, except that the chromosomes are genetically recombined
- AVerdadero
- BFalso
53The final cells in meiosis...
- Aare 4
- Bare 2
- Care diploid (46 chromosomes each)
- Dare haploid (23 chromosomes each)
- Eare somatic cells
- Fare gamete cells
54Label each stage of meiosis I and II.
- AInterphase
- BProphase I
- CMetaphase I
- DAnaphase I
- ETelophase I
- FProphase II
- GMetaphase II
- HAnaphase II
- ITelophase II
55Both mitosis and meiosis start with [blank_start]__[blank_end] cells, but only meiosis ends with [blank_start]__[blank_end] cells.
- Adiploid
- Bhaploid
- Cdiploid
- Dhaploid
56Cell division must ensure that the daughter cells have the same genetic information as the mother cell, so it synthesizes two exact copied of its DNA by a process called [blank_start]__[blank_end].
- ADNA replication
57In what stage of the cell cycle does DNA replication occur?
- AG0
- BG1
- CS
- DG2
58Chromosomes are made of s[blank_start]__[blank_end],
which are made of c[blank_start]__[blank_end],
which are made of n[blank_start]__[blank_end],
which are made of 8 h[blank_start]__[blank_end],
which are wrapped by DNA.- Aupercoils
- Boils
- Cucleosomes
- Distones
59DNA replication is called [blank_start]__[blank_end] because it conserves one original strand from the parental DNA.
- Asemiconservative
60Label the parts of the DNA replication.
- AChromosome
- BDNA original template
- CReplication fork
- DFree nucleotides
- EDNA Polymerase
- FLeading strand
- GHelicase
- HDNA original template strand
- ILagging strand
Información
- Descripción
- Primero Biología Test sobre Partial Exam 2, creado por André Lira el 26/10/2021.
- Autor
- André Lira
- Idioma
- English
- Visitas
- 26
- Etiquetas
- Valoración
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