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Cell - Structure and Functions Class 8 Worksheet Science

Q.1. Name the organelle of a plant cell where photosynthesis takes place. 

Q.2. What is the basic similarity among all the living organisms (plants and animals)? 

Q.3. What is a tissue? 

Q.4. Which is the largest floating body generally in the center of a cell? 

Q.5. Name the outermost layer of an animal cell. 

Q.6. What is a gene? What is its function? 

Q.7. What are unicellular organisms? Give two examples. 

Q.8. What is plastid? What is the name of green plastids present in plant cells? 

Q.9. What is a cell wall? What is its function? 

Q.10. Does the number of cells in an organism affect its functioning? Explain. 

Q.11. Which part of the cell gives it shape? 

Q.12. What are the different shapes of cells? 

Q.13. What are multicellular organisms? Give two examples. 

Q.14. What is a nuclear membrane? State its function. 

Q.15. What is protoplasm?

You can access the solutions to this worksheet here.

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FAQs on Cell - Structure and Functions Class 8 Worksheet Science

1. What is the structure of a cell?
Ans. The structure of a cell consists of several components. The main parts include the cell membrane, nucleus, cytoplasm, and organelles such as mitochondria, endoplasmic reticulum, Golgi apparatus, and ribosomes.
2. What is the function of the cell membrane?
Ans. The cell membrane is responsible for protecting the cell and controlling the movement of substances in and out of the cell. It regulates the flow of nutrients, gases, and waste materials, and also aids in cell communication.
3. What is the role of the nucleus in a cell?
Ans. The nucleus is often referred to as the "control center" of the cell. It contains the genetic material known as DNA, which carries instructions for the cell's growth, development, and reproduction. The nucleus also controls the activities of the cell by regulating gene expression.
4. What are the functions of mitochondria in a cell?
Ans. Mitochondria are often called the "powerhouses" of the cell as they are responsible for producing energy in the form of ATP through a process called cellular respiration. They also play a role in regulating cell growth and cell death.
5. What is the function of the endoplasmic reticulum in a cell?
Ans. The endoplasmic reticulum (ER) is involved in the synthesis, folding, and transport of proteins and lipids. It consists of a network of tubules and flattened sacs that are connected to the nuclear envelope. The ER can be rough or smooth, depending on whether it has ribosomes attached to its surface. The rough ER is involved in protein synthesis, while the smooth ER is involved in lipid metabolism and detoxification of drugs and toxins.
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