AnswersPMHS Biology I Q2Cell Differentiation and Specialization

Cell Differentiation and Specialization — Unit test Answers

22 verified answers2 views
1
Free Preview

Which is the first type of cell to differentiate?

A
neuron
B
epithelial cell
C
muscle cell
D
blood cell
2
Free Preview

Rapid reproduction is an advantage of which process?

A
gamete formation
B
sexual reproduction
C
asexual reproduction
D
chromosome duplication
3

What is the end result of the eukaryotic cell cycle?

A
no parent cells and two daughter cells
B
one parent cell and two daughter cells
C
two parent cells and one daughter cell
D
one parent cell and one daughter cell
4

Which statement best describes the overall change that occurs as a result of mitosis?

A
One cell becomes two cells that have identical copies of DNA.
B
One cell becomes two cells that have different copies of DNA.
C
Two cells become two cells that have identical copies of DNA.
D
Two cells become two cells that have different copies of DNA.
5

Which best describes stem cells?

A
Differentiation produces specialized cells from stem cells.
B
Self-renewal produces specialized cells from differentiated cells.
C
Self-renewal produces differentiated cells from stem cells.
D
Differentiation produces stem cells from specialized cells.
6

Which series of diagrams correctly represents the order of mitosis?

A
The steps of mitosis are shown. In step 1, the cell starts to break down structures. In step 2, the chromosomes line up at the center. In step 3, the chromatids separate from each other and are pulled to opposite ends of the cell. In step 4, the cell is divided.
Option A
B
The steps of mitosis are shown. In step 1, the cell starts to break down structures. In step 2, the cell is divided. In step 3, the chromatids separate from each other and are pulled to opposite ends of the cell. In step 4, the chromosomes line up at the center.
Option B
C
The steps of mitosis are shown. In step 1, the cell starts to break down structures. In step 2, the cell is divided. In step 3, the chromosomes line up at the center. In step 4, the chromatids separate from each other and are pulled to opposite ends of the cell.
Option C
D
The steps of mitosis are shown. In step 1, the cell starts to break down structures. In step 2, the chromatids separate from each other and are pulled to opposite ends of the cell. In step 3, the chromosomes line up at the center. In step 4, the cell is divided.
Option D
7

Fewer offspring is a disadvantage of which form of reproduction?

A
mitosis
B
asexual reproduction
C
binary fission
D
sexual reproduction
8

Which part of cell division is different in plant and animal cells?

A
cytokinesis
B
anaphase
C
mitosis
D
eukaryotic
9

If an organism's diploid number is 12, what would be its haploid number?

A
3
B
6
C
24
D
48
10

Chloroplasts have a complex internal structure, as shown in the model below.In which location is glucose formed?

Question illustration
A
Location A
B
Location B
C
Location C
D
Location D
11

Which of the following can combine in a cell to convert a lower-energy molecule into a higher-energy molecule?

A
ADP + P + energy
B
ATP + P + energy
C
ADP + P
D
ATP + P
12

Which equation represents fertilization?

A
haploid + diploid = diploid
B
diploid + haploid = haploid
C
haploid + haploid = diploid
D
diploid + diploid = diploid
13

Which best illustrates the result of the process of meiosis?

A
A pea plant has the same flower color as its parent plants.
B
A daughter looks different from both her mother and her father.
C
A cheetah cub has very similar fur to its mother.
D
A Labrador puppy looks exactly like its father.
14

Which statement best summarizes the importance of meiosis to reproduction?

A
It produces diploid cells that are needed for sexual reproduction.
B
It produces diploid cells that are needed for asexual reproduction.
C
It produces gametes that are needed for sexual reproduction.
D
It produces gametes that are needed for asexual reproduction.
15

Tissue cultures (samples of cancer cells) are taken from cancer patients, and the cells are then grown in a laboratory. What is the purpose of growing cancer cells in a laboratory?

A
to test medicinal treatments before giving them to patients
B
to replace cancer cells with healthy cells
C
to provide evidence of cancer cells in the patient
D
to stop the cancer from growing in the patient
16

DNA replication occurs during which phase of the eukaryotic cell cycle?

A
S phase
B
G1 phase
C
G2 phase
D
M phase
17

Which is the final electron acceptor in the electron transport chain of cellular respiration?

A
NADH
B
FADH2
C
oxygen
D
carbon dioxide
18

Smooth muscle, which is a tissue made up of a type of specialized muscle cell, functions in which process?

A
food digestion
B
skeletal movement
C
pumping of blood
D
heart contraction
19

What do all cellular activities in living organisms use as a source of energy?

A
ATP
B
lactic acid
C
pyruvic acid
D
carbon dioxide
20

Which refers to the maintenance of a stable internal environment despite changing external conditions?

A
differentiation
B
self-renewal
C
homeostasis
D
specialization

Did you find these answers helpful?

More from this Course

Quiz
15 verified answers

Unit Test

Instruction
21 verified answers

Instruction

Assignment
23 verified answers

Assignment