Neco Model Questions Vol1 2022 Biology Question 9

Practice objective / multiple choice question 9 from the 2022 Neco Model Questions Vol1 Biology examination.

Neco Model Questions Vol1 2022 Biology Objective / Multiple Choice Easy Difficulty
Question 9 NECO_MODEL_QUESTIONS_VOL1 • 2022 • BIOLOGY • objective
Neco Model Questions Vol1 2022 Biology Question 9 diagram

The diagram shows a typical plant cell with its major organelles labelled. Identify the organelle that carries out photosynthesis and explain, in two sentences, why its structure is suited to this function.

Answer Options

Correct Answer A. Chloroplast; its stacked thylakoid membranes increase surface area for light absorption and the stroma houses the Calvin‑cycle enzymes, enabling efficient photosynthesis.
B. Nucleus; its double membrane encloses genetic material and regulates cellular activities. The nucleoplasm is believed to host photosynthetic pigments, making it suitable for photosynthesis.
C. Vacuole; its large central space stores water and nutrients, providing a reservoir for photosynthetic substrates. The tonoplast membrane is thought to contain chlorophyll, allowing light absorption.
D. Mitochondrion; its inner membrane folds called cristae increase surface area for ATP synthesis. The matrix contains enzymes for the citric acid cycle, which are mistakenly thought to capture light energy.
Correct Answer
A
Correct Option:
Chloroplast; its stacked thylakoid membranes increase surface area for light absorption and the stroma houses the Calvin‑cycle enzymes, enabling efficient photosynthesis.

About This Question

This is Neco Model Questions Vol1 2022 Biology Question 9. It is one of the objective questions from the 2022 Neco Model Questions Vol1 Biology examination.

Difficulty level: Easy .

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