Question : Given below is the ultrastructure of animal cell (i) Label the parts marked as 1, 2, 3, 4 and 5. (ii) Give one major function of each of these parts.

Question : Given below is the ultrastructure of animal cell (i) Label

1.	Question : Given below is the ultrastructure of animal cell (i) Label the parts marked as 1, 2, 3, 4 and 5. (ii) Give one major function of each of these parts.
Answer» Solution :(i) 1. Mitochondrion 2. Cell membrane 3. RIBOSOMES bound to RER 4. Nuclear envelope 5. Smooth endoplasmic reticulum. (ii) 1. it is the power HOUSE of the cell. It supplies energy for various activities of the cell. 2. It selectively regulates the movement of molecules into and out of the cells. 3. These play a role in protein synthesis. 4. It is an envelope that keeps the nuclear contents in place and distinct from cytoplasm. 5. It PLAYS a role in transport of materials from one part of the cellto ANOTHER.