Question

A. Very Short Answer Type Questions (1 mark)
1. Why is plasma membrane called selectively permeable membrane?
2. What is nucleoid?
3. Name one organelle due to lack of which viruses are dependent on a living cell.
4. Name the cell organelle which is known as suicide bag.
5. What is the function of Leucoplast?
6. Name an organelle which maintains the turgidity and rigidity of mature plant cells.​

Answer 1

Answer:

Ans 2-The nucleoid (meaning nucleus-like) is an irregularly shaped region within the cell of a prokaryote that contains all or most of the igenetic material, called genophore.

Ans 5- Leucoplasts are colorless plastids

found in endosperm, tubers, roots and other non-photosynthetic tissues of plants. They serve various functions, for example, storage of starch, lipids, or proteins. Plastids of these three types are respectively known as amyloplasts, elaioplasts, and proteinoplasts.