Cell Specialization and Signals Test_25.26

Last updated 3 months ago

10 questions

Instructions

Required

Library

Cell Specialization and Signals Test_25.26

Last updated 3 months ago

10 questions

Instructions

This formative assessment explores concepts of cell specialization, differentiation, and gene regulation. It's designed to test students' understanding of how genetic expression is influenced by internal and external factors.

Required

Question 1

Which statement best explains why muscle and nerve cells in the same organism perform different functions?

They have different DNA.

They copy DNA from other cells.

They gain new chromosomes during development.

Required

Question 2

Certain genes are turned off while others turn on.

Every gene in DNA is used equally.

DNA sequences are permanently deleted.

Required

Question 3

Bone marrow produces more red blood cells.

The kidneys release EPO.

The lungs slow down gas exchange.

The heart pumps less blood.

Required

Question 4

Low oxygen at high altitude

EPO signaling bone marrow stem cells

Required

Question 5

A body cell exposed to high temperature begins producing heat-shock proteins that protect enzymes. What does this show about gene regulation?

Heat removes unused DNA from the cell.

Temperature breaks down proteins permanently.

The cell stops all gene activity.

Required

Question 6

Which statement describes how feedback maintains homeostasis?

Feedback increases mutation rates.

Feedback only works in one organ system.

Required

Question 7

Circulatory and respiratory

Digestive and endocrine

Nervous and muscular

Circulatory and immune

Required

Question 8

EPO will still be released normally.

The feedback system will fix the mutation automatically.

Required

Question 9

Oxygen levels stay balanced automatically.

DNA stops making proteins permanently.

Required

Question 10

10.

Positive feedback increases EPO levels indefinitely.

Negative feedback decreases EPO once oxygen levels rise.

Gene expression permanently changes in all cells.

The kidneys stop working once oxygen is restored.

This formative assessment explores concepts of cell specialization, differentiation, and gene regulation. It's designed to test students' understanding of how genetic expression is influenced by internal and external factors.

Question 1

Which statement best explains why muscle and nerve cells in the same organism perform different functions?

They have different DNA.

They copy DNA from other cells.

They gain new chromosomes during development.

Question 2

Certain genes are turned off while others turn on.

Every gene in DNA is used equally.

DNA sequences are permanently deleted.

Question 3

Bone marrow produces more red blood cells.

The kidneys release EPO.

The lungs slow down gas exchange.

The heart pumps less blood.

Question 4

Low oxygen at high altitude

EPO signaling bone marrow stem cells

Question 5

A body cell exposed to high temperature begins producing heat-shock proteins that protect enzymes. What does this show about gene regulation?

Heat removes unused DNA from the cell.

Temperature breaks down proteins permanently.

The cell stops all gene activity.

Question 6

Which statement describes how feedback maintains homeostasis?

Feedback increases mutation rates.

Feedback only works in one organ system.

Question 7

Circulatory and respiratory

Digestive and endocrine

Nervous and muscular

Circulatory and immune

Question 8

EPO will still be released normally.

The feedback system will fix the mutation automatically.

Question 9

Oxygen levels stay balanced automatically.

DNA stops making proteins permanently.

Question 10

10.

Positive feedback increases EPO levels indefinitely.

Negative feedback decreases EPO once oxygen levels rise.

Gene expression permanently changes in all cells.

The kidneys stop working once oxygen is restored.