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.
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Question 3
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Question 4
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Question 5
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Question 6
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Question 7
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Question 8
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Question 9
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Question 10
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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.
Certain genes are turned off while others turn on.
Every gene in DNA is used equally.
DNA sequences are permanently deleted.
Bone marrow produces more red blood cells.
The kidneys release EPO.
The lungs slow down gas exchange.
The heart pumps less blood.
Low oxygen at high altitude
EPO signaling bone marrow stem cells
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.
Which statement describes how feedback maintains homeostasis?
Feedback increases mutation rates.
Feedback only works in one organ system.
Circulatory and respiratory
Digestive and endocrine
Nervous and muscular
Circulatory and immune
EPO will still be released normally.
The feedback system will fix the mutation automatically.