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Unit 2 Cells Review Flashcards | StudBud
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Unit 2 Cells Review
Unit 2 Cells Review
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1
How does cell division differ in animal and plant cells?
plant cells can only be haploid
animal cells need to form a cell plate
animal cells do not have centriole
only animal cells have centrioles
2
No nucleus
Eukaryote
Prokaryote
3
What typically occurs during the cell cycle of cancerous cells?
cells grow slowly
cell growth is uncontrolled
cells fail to undergo mitosis
cell division stops
4
After diffusion, when the system reaches equilibrium, the molecules will
continue to move across the membrane in both directions.
move across the membrane to the outside of the cell.
stop moving across the membrane.
move across the membrane to the inside of the cell.
5
Which of the following is a function of the nucleus?
builds proteins
packages proteins
stores sugars
stores DNA
6
In this stage in interphase, the cell further synthesises proteins and it gets ready to divide.
G2
S stage
Mitosis
G1
7
Mitosis results in each cell _________.
receiving exactly half of the chromosomes of original cell
donating repaired chromosomes to the original cell
receiving exact copies of all chromosomes of original cell
receiving the majority of chromosomes of original cell
8
This is the third stage of mitosis in which sister chromatids are pulled apart.
telophase
prophase
metaphase
anaphase
9
The movement of substances from high concentrations to low is
Passive Transport
Active Transport
10
Which of the following is a function of the cell membrane?
regulates the movement of materials into and out of the cell
keeps the cell wall in place
breaks down lipids, carbohydrates, and proteins from foods
stores water, salt, proteins, and carbohydrates
11
Always requires protein channels
Passive Transport
Active Transport
12
Identify the stage of mitosis in the image below
telophase
prophase
anaphase
metaphase
13
During this step in the interphase stage, the cell duplicates its DNA.
S stage
G1 stage
Mitosis
G2 stage
14
In this stage in interphase, the cell grows and double the number of its organelles.
Mitosis
S stage
G1
G2
15
What occurs after mitosis?
the cytoplasm of the cell undergoes division
the original cell dies
the cell begins the growth cycle
two identical daughter cells are formed
16
During which phase would the nucleolus disappear and the nuclear membrane breakdown?
metaphase
prophase
telophase
interphase
17
During which phase of the cell cycle does the cytoplasm of the cell divide?
interphase
interphase
cytokinesis
18
Which of the following conclusions could you draw about the cell shown?
The cell is prokaryotic because it does not have a nucleus.
The cell is prokaryotic because it has a nucleus.
The cell is eukaryotic because it does not have a nucleus.
The cell is eukaryotic because it has a nucleus.
19
What do checkpoints look for in the cell cycle?
Proper Cell Growth and Replication
Cancerous Cells
Growth Factors
Apoptosis
20
Organisms are only unicellular
Eukaryote
Prokaryote
21
Which is the correct sequence of events for the cell cycle?
G1, S, G2, Mitosis, Cytokinesis
G1, G2, S, Mitosis, Cytokinesis
Mitosis, Cytokinesis, G1, G2, S
G1, S, Mitosis, G2, Cytokinesis
22
Prokaryotes divide in a process called _____.
mitosis
cell division
meiosis
binary fission
23
Can undergo photosynthesis
Animal cell
Plant cell
24
What organelle is NOT found in all cells?
Cytoskeleton
Nucleus
Plasma membrane
Ribosomes
25
How many stages of mitosis are there?
2
4
3
1
26
Which structure in the cell stores materials, such as water, salts, and proteins?
mitochondria
chloroplasts
lysosomes
vacuoles
27
Goes along with (down) concentration gradient
Active Transport
Passive Transport
28
What occurs during metaphase?
spindle fibers begin to shorten
chromosomes line up at center of the cell
the cell membrane begins to fold inward
chromosomes are at opposite ends of the cell
29
Mitosis would not continue if a mutation occurred that interrupted ________.
cell wall formation
the assembly of the spindle fibers
cell membrane formation
the assembly of the nuclear envelope
30
Which of the following is NOT a principle of the cell theory?
All living things are made of cells.
Very few cells are able to reproduce.
Cells are the basic units of life.
All cells are produced from pre-existing cells
31
The cell membrane contains channels that transport materials. What are these channels made of?
carbohydrates
proteins
lipids
bilipids
32
Larger cells (10-100µm in size)
Prokaryote
Eukaryote
33
What function is NOT found in all cells?
Convert and use energy
Make more cells (replicate)
Release hormone signals
Make proteins
34
Example of a prokaryote
bacteria
fungus
animal
plant
35
A condition of uncontrollable cell division.
Benign
Cancer
Tumor
Malignant
36
Programmed cell death.
biopsy
cancer
apoptosis
metastasis
37
Unlike the cell membrane, the cell wall is
selectively permeable.
found in all organisms.
composed of a lipid bilayer.
a rigid structure.
38
Simple and facilitated diffusion
Active Transport
Passive Transport
39
Cancer cells form tumors in other tissues by
cancer
biopsy
benign
metastasis
40
To analyze the presence of cancer, a sample of tissue is performed called....
benign
malignant
biopsy
metastasis
41
Has a cell wall
Animal cell
Plant cell
42
A eukaryotic cell will spend 90% of its lifetime in which phase of the cell cycle?
synthesis
mitosis
interphase
cytokinesis
43
Simple, no membrane-bound organelles
Eukaryote
Prokaryote
44
Which level of organization is out of order? atom < molecule < cell < tissue <organelle <organ
cell
tissue
molecule
organelle
45
Require energy input
Passive Transport
Active Transport
46
The cell membrane is made mostly of
nucleic acids
carboyhdrates
proteins
lipids
47
Has chloroplasts
Animal cell
Plant cell
48
What is a carcinogen?
A type of stem cell
A substance that can cause or lead to cancer
Programed cell death
Uncontrolled cell division
49
A type of cancer that may occur due to chewing tobacco.
pancreas
colon
skin
oral
50
The diffusion of water across a selectively permeable membrane is called
active transport
osmosis
concentration gradient
facilitated diffusion
51
Exposure to UV rays from the sun can trigger this cancer.
brain
prostate
lung
skin
52
Identify the stage of mitosis in the image below.
prophase
metaphase
telophase
anaphase
53
Cancer cells form a mass of tissues called
organ
cancer
tumor
system
54
Which organelle breaks down organelles that are no longer useful?
Golgi apparatus
mitochondrion
lysosome
endoplasmic reticulum
55
Which organelles are involved in energy conversion?
smooth and rough endoplasmic reticulum
mitochondria and chloroplasts
mitochondria and ribosomes
Golgi apparatus and chloroplasts
