Plant Kingdom Question 525

Question: Spirogyra cells contain

Options:

A) One chloroplast and one pyrenoid

B) One or more chloroplast, each with one pyrenoid

C) One or more chloroplast, each with many pyrenoids

D) None of the above

Show Answer

Answer:

Correct Answer: C

Solution:

Spirogyra cell contain one (e.g., S.

sahnii) to more (sixteen in S.

rectispora) ribbon-shaped spirally coiled chloroplasts (wavy margin) each with a row of many pyrenoids (seat of synthesis and storage of starch).

Connected together by a narrow ridge.