A neurone's mitochondria are damaged while every other organelle stays intact. What does the cell lose?
AIts ability to release energy
BIts ability to make proteins
CIts insulating outer sheath
DIts store of genetic material
Answer & Solution
Correct answer: A. Its ability to release energy
1. Mitochondria are the site of aerobic respiration in any cell.
2. Respiration releases the energy the cell needs, stored as ATP.
3. Damaging them therefore cuts the neurone's energy supply.
4. Protein and enzyme production is the work of the Nissl granules, a separate structure.
5. Confusing mitochondria with Nissl granules, or with the nucleus, was recorded on this question in both directions.
_Source: NECTA ACSEE 2022 Biology 133/1, Question 3: Coordination_
Related questions
An organism suffers severe damage across its whole nervous system. Which three abilities fAsked to name a type of neurone, a candidate answers 'myelin neurone'. What is the error?A patient's myelin sheaths are progressively stripped from their nerves. What happens to tA neurone's Nissl granules are destroyed by disease. Which function is lost first?You walk from bright sunlight into a dim room. What happens to your pupil?A relay neurone differs from a motor neurone in that it:Which component of the nervous system receives impulses from receptors?The message in nervous coordination travels as: