AnswersGCS 2025-2026 Biology Credit RecoveryUnit Test

Unit Test — Unit test Answers

14 verified answers1 views
1
Free Preview

Which term identifies a light-absorbing pigment?

A
photosystem
B
ferredoxin
C
thylakoid
D
chlorophyll
2
Free Preview

Which statement correctly describes what proteins, lipids, and glycogen have in common?

A
They are all used as primary energy sources during exercise.
B
They are each stored in the liver to be used as a ready energy reserve.
C
They each can be broken down to provide ATP to cells.
D
They each contain the same amount of ATP.
3

Fewer offspring is a disadvantage of which form of reproduction?

A
mitosis
B
asexual reproduction
C
binary fission
D
sexual reproduction
4

Which question can be answered by following the scientific method?

A
What was the highest temperature that was recorded yesterday?
B
What is the most interesting aspect of the light-dependent reactions?
C
How does a change in temperature affect the stomata of a plant?
D
How many stomata are there on this leaf?
5

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.
6

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
7

Which statement describes thylakoids?

A
Glucose is formed here.
B
Water molecules are formed here.
C
Only photosystem II functions here.
D
Photosystems I and II function here.
8

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

A
cytokinesis
B
anaphase
C
mitosis
D
eukaryotic
9

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.
10

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
11

Which of the following is an inference?

A
A burning candle is extinguished when it is covered with a jar.
B
The candle burns longer than expected in a jar that has a plant in it.
C
A plant lives longer than expected in a jar that has a burning candle.
D
There is more oxygen in the jar because there is a plant in it.
12

Which equation represents fertilization?

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

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
14

Which best defines a diploid cell during meiosis?

A
a cell that has double the number of chromosomes as the parent cell
B
a cell that has half the number of chromosomes as the parent cell
C
a cell that has double the number of chromosomes as the daughter cell
D
a cell that has half the number of chromosomes as the daughter cell
15

The Venn diagram compares aerobic respiration and anaerobic respiration.Which statement could be categorized in the overlapping section of the Venn diagram?

Question illustration
A
uses pyruvic acid
B
has commercial uses
C
regenerates NADH
D
produces 36 ATP

Did you find these answers helpful?

More from this Course

Quiz
25 verified answers

Unit Test

Quiz
10 verified answers

Energy in Cells