Question

1. List out the functions of Endoplasmic reticulum.
2. What is the function of SER in liver cells of vertebrates?
3. Why the RER appears rough?
4. Why viruses are not supposed to be living?
5. Define Nucleoid?
6. Why dry raisins placed in water swell up?
7. Differentiate between cytoplasm, protoplasm, nucleoplasm.
8. Where are genes located? List out their functions.
9. What will happen if we keep a plant cell or animal cell in a i) Hypotonic solution ii) Hypertonic
solution iii) Isotonic solution.
10. Explain the importance of osmosis for living beings?
11. Give the historical development of cell theory.
12. Who coined the term “Cell” and how?
13. Write the contribution of a) Robert Hooke, b) Leeuwenhoek, c) Robert Brown
14. Draw a large diagram of an animal cell as seen through an electron microscope, Label the parts
that carry on the function of Respiration, secretion, protein synthesis, transport of material.
15. Which substance is responsible for transfer of characters from one generation to another?
16. Why does the plant cell remain more rigid than the animal cell?
17. Name the intercellular connections between plants cells. What is their function?
18. Distinguish between onion peel cell and R.B.C?
19. How Amoeba is different from plant cell?
20. Give a comparative account of Plant and animal cell.

Answer 1

Answer:

Que no.3 - The RER appears rough due to presence of ribosomes on it

Answer 2

Answers of your question:-

• 1. Functions of Endoplasmic Reticulum (ER)

It is mainly responsible for the transportation of proteins and other carbohydrates to another organelle, which includes lysosomes, Golgi apparatus, plasma membrane, etc.

• 2. In the liver, enzymes in the SER catalyze reactions that render drugs, metabolic wastes, and harmful chemicals water-soluble, thereby contributing to their detoxification, or removal, from the body.
• 3. because it contains ribosomes
• 4. As they need anyother body for there survival.
• 5. The nucleoid is an irregularly shaped region within the prokaryotic cell that contains all or most of the genetic material.