Question

.

4. What is diffusion?

Ans :

The process when gases like CO2

and O2

, move across

the cell membrane, is called diffusion.

5. What is osmosis?

Ans :

The movement of water molecules through a selectively

permeable membrane is called osmosis. This takes

place from higher water concentration to lower water

concentration.

6. What is the full form of DNA?

Ans :

DNA (Deoxyribose Nucleic Acid).

7. Name the cell organelle that helps in packaging?

Ans :

Golgi apparatus.


9. Which organelle makes the digestive enzyme of

lysosome?

Ans :

Rough endoplasmic reticulum makes the digestive

enzyme of lysosomes.

10. What are cisterns?

Ans :

The Golgi bodies consist of a system of membrane-

bound vesicles arranged in stacks called cisterns.

11. Name the cell organelles that have their own DNA

and ribosomes. Name the autonomous organelles in

the cell.

Ans :

The cell organelles with their own DNA and ribosomes

are mitochondria and plastids. Chloroplast and

mitochondria are the autonomous organelles in the

cells.

12. What is the role of cell organelles in the cell?

Ans :

Each kind of cell organelles performs a specific

function such as making new material, clearing of the

waste, transporting material, etc.

13. What is the energy currency of the cell?

Ans :

ATP—Adenosine Triphosphate.
​

Answer 1

Answer:

ans 4 =intermixing of particles in a two different matter is called diffusion

Answer 2

Answer:

the process when gases like co2 and o2