KCET · BIOLOGY · STD 11 - 8. Cell : The Unit of Life

Which of the following statements is correct?

A The core of cilium or flagellum is the basal body.
B Elaioplasts store starch whereas aleuroplasts store proteins.
C Membranous extensions into the cytoplasm in cyanobacteria which contain pigments are called chromatophores.
D Acrocentric chromosomes have only one arm.

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Answer & Solution

Correct Answer

(C) Membranous extensions into the cytoplasm in cyanobacteria which contain pigments are called chromatophores.

Step-by-step Solution

Detailed explanation

(C) Membranous extensions into the cytoplasm in cyanobacteria which contain pigments are called chromatophores.,
In some prokaryotes like cyanobacteria there are other membranous extension into the cytoplasm called chromatophores which contain pigments.

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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