Integrated Science Exam Questions with Verified Solutions Latest Update 2024 (Graded A+)
Some single-celled organisms make copies of themselves through mitosis. Which decribes the function
of the cell cycle in such single-celled organisms?
reproduction
repair
growth
protection - Answers Reproduction
Imagine that a disorder that causes the cell cycle to stop affects the muscle cells of a frog's leg. What
consequence is most likely to follow?
The frog will not be able to hop using that muscle.
An injury to the muscle will not heal.
The frog will not be able to reproduce.
A broken bone in that leg will not mend. - Answers An injury to the muscle will not heal.
Skin cells are lost daily even without injury. Which best describes the purpose of the cell cycle for skin
cells in this circumstance?
reproduction
repair
synthesis
growth - Answers Reproduction
Each year, about 1.2 million cases of skin cancer are reported worldwide. An increased exposure to
environmental conditions is a major link to the increase in cases. Based on this information, which is the
best conclusion?
Limiting exposure to the sun may increase the chance of skin cancer.
,Increasing exposure to the sun may reduce the chance of skin cancer.
Increasing exposure to the sun will not affect the chance of skin cancer. - Answers Limiting exposure to
the sun may reduce the chance of skin cancer.
What is the purpose of interphase in the eukaryotic cell cycle?
cell repair
cell growth
cell reproduction
cell division - Answers Cell Growth
The diagram shows the stages of the eukaryotic cell cycle.
Which stage is labeled E in the diagram?
mitosis
interphase
S phase
G0 phase - Answers Interphase
The diagram shows the stages of the eukaryotic cell cycle.
Which stage is labeled C in the diagram?
M phase
G0 phase
S phase
G2 phase - Answers G2 phase
At which point in the eukaryotic cell cycle does mitosis occur?
before the G1 phase
,after the G2 phase
following the S phase
after the G0 phase - Answers After the G2 Phase
An error occurs when the DNA of a cell is copied. However, the cell does not divide after the error is
detected. Which statement best describes the cell cycle for this cell?
An error during the G1 phase is corrected during the G2 phase.
An error during the S phase is corrected during the G2 phase.
An error during the G1 phase is corrected during the S phase.
An error during the S phase is corrected during mitosis. - Answers An error during the S phase is
corrected during the G2 phase.
What is the purpose of the cell cycle?
DNA replication
development of positive mutations
prevention of cancer
growth, repair, and reproduction of cells - Answers growth, repair, and reproduction of cells
Why is a skin graft necessary when cells are damaged by a third-degree burn?
to promote the repair of existing cells
to protect the area from infection
to prevent mutations
to replace damaged nerves - Answers To protect the area from infection
Which is the main reason cells are replaced in the body?
The cells are too large.
, The cells are inactive.
The cells are damaged.
The cells are cancerous. - Answers The cells are damaged
Which can disrupt the cell cycle?
mutation
G0 phase
replication
cancer - Answers Mutation
What is cancer?
addition of new cells to replace damaged cells
DNA replication
cellular death
uncontrolled cell division - Answers Uncontrolled cell division
At which point in the eukaryotic cell cycle can a DNA mutation occur?
G1 phase
G2 phase
S phase
M phase - Answers S phase
Which best describes cancer cells?
Cancer cells cannot enter the circulatory system.
Cancer cells grow controllably.
Some single-celled organisms make copies of themselves through mitosis. Which decribes the function
of the cell cycle in such single-celled organisms?
reproduction
repair
growth
protection - Answers Reproduction
Imagine that a disorder that causes the cell cycle to stop affects the muscle cells of a frog's leg. What
consequence is most likely to follow?
The frog will not be able to hop using that muscle.
An injury to the muscle will not heal.
The frog will not be able to reproduce.
A broken bone in that leg will not mend. - Answers An injury to the muscle will not heal.
Skin cells are lost daily even without injury. Which best describes the purpose of the cell cycle for skin
cells in this circumstance?
reproduction
repair
synthesis
growth - Answers Reproduction
Each year, about 1.2 million cases of skin cancer are reported worldwide. An increased exposure to
environmental conditions is a major link to the increase in cases. Based on this information, which is the
best conclusion?
Limiting exposure to the sun may increase the chance of skin cancer.
,Increasing exposure to the sun may reduce the chance of skin cancer.
Increasing exposure to the sun will not affect the chance of skin cancer. - Answers Limiting exposure to
the sun may reduce the chance of skin cancer.
What is the purpose of interphase in the eukaryotic cell cycle?
cell repair
cell growth
cell reproduction
cell division - Answers Cell Growth
The diagram shows the stages of the eukaryotic cell cycle.
Which stage is labeled E in the diagram?
mitosis
interphase
S phase
G0 phase - Answers Interphase
The diagram shows the stages of the eukaryotic cell cycle.
Which stage is labeled C in the diagram?
M phase
G0 phase
S phase
G2 phase - Answers G2 phase
At which point in the eukaryotic cell cycle does mitosis occur?
before the G1 phase
,after the G2 phase
following the S phase
after the G0 phase - Answers After the G2 Phase
An error occurs when the DNA of a cell is copied. However, the cell does not divide after the error is
detected. Which statement best describes the cell cycle for this cell?
An error during the G1 phase is corrected during the G2 phase.
An error during the S phase is corrected during the G2 phase.
An error during the G1 phase is corrected during the S phase.
An error during the S phase is corrected during mitosis. - Answers An error during the S phase is
corrected during the G2 phase.
What is the purpose of the cell cycle?
DNA replication
development of positive mutations
prevention of cancer
growth, repair, and reproduction of cells - Answers growth, repair, and reproduction of cells
Why is a skin graft necessary when cells are damaged by a third-degree burn?
to promote the repair of existing cells
to protect the area from infection
to prevent mutations
to replace damaged nerves - Answers To protect the area from infection
Which is the main reason cells are replaced in the body?
The cells are too large.
, The cells are inactive.
The cells are damaged.
The cells are cancerous. - Answers The cells are damaged
Which can disrupt the cell cycle?
mutation
G0 phase
replication
cancer - Answers Mutation
What is cancer?
addition of new cells to replace damaged cells
DNA replication
cellular death
uncontrolled cell division - Answers Uncontrolled cell division
At which point in the eukaryotic cell cycle can a DNA mutation occur?
G1 phase
G2 phase
S phase
M phase - Answers S phase
Which best describes cancer cells?
Cancer cells cannot enter the circulatory system.
Cancer cells grow controllably.
