Organelle Functions: Past Paper Exam
Attempt each question, then reveal the model answer. Keywords in answers are highlighted in green — these earn marks.
State the function of the mitochondria.
State the function of ribosomes.
Why do muscle cells contain more mitochondria than skin cells?
Describe what happens during protein synthesis at the ribosome.
A student claims that ribosomes and mitochondria perform the same function. Evaluate this claim.
Which part of the cell contains the genetic material and controls all cell activities?
Describe the function of the cell membrane.
Explain how the nucleus communicates its instructions to the ribosomes.
State TWO ways in which the cell membrane controls the movement of substances.
A cell's nucleus is damaged and can no longer function. Predict what will happen to the cell and explain your answer.
What is the function of chloroplasts?
State the function of the permanent vacuole in plant cells.
Explain why a plant wilts when it does not have enough water.
Compare the structure of a plant cell to an animal cell. State THREE differences.
A student says: 'All plant cells have chloroplasts.' Evaluate this statement.
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