SSC Worksheet for Chapter- 4 Cell Structure and Functions Class 8

Worksheets For class 8

Find SSC Worksheet for chapter-4 Cell Structure and Functions class 8

1. CLASS-8
2. BOARD: SSC
3. BIOLOGY Worksheet -4
4. TOPIC: Cell Structure and Functions
5. For otherSCC Worksheet for class 8 Science check out main page of Physics Wallah.

1. Cell theory was proposed by __________ and____________.
2. __________ is considered as the biggest cell.
3. The scientist who described cell as ‘many little boxes’ was?
   1. Robert Hooke
   2. Theodor Schwann
   3. Anton Van Leeuwenhoek
   4. Rudolf Virchow
4. Which of the following statements is correct?
   1. Prokaryotic cells are surrounded by a cell membrane
   2. Prokaryotic cells have a nucleus
   3. Eukaryotic cells have genetic information
   4. Eukaryotic cells have membrane bound organelles
5. How many cells are present in human body?
   1. One million cells
   2. One billion cells
   3. One trillion cells
   4. More than a trillion cells
6. Indicate whether the following statements are True (T) or False (F)
   1. Unicellular organisms have one-celled body
   2. Muscle cells are branched
   3. The basic living unit of an organism is an organ
   4. Amoeba has irregular shape
7. A hen’s egg can be seen easily. Is it a cell or a group of cells?
8. What advantage does Amoeba derive by changing shape?
9. Are the cells in an elephant larger than the cells in a rat?
10. ‘Cells are the basic structural units of living organisms’. Explain.

Solutions: to worksheet-4 Topic- Cell Structure and Functions

1. Schleiden, Schwann
2. Ostrich egg
3. (a) Robert Hooke
4. (d) Eukaryotic cells have membrane bound organelles
5. (d) More than a trillion cells
6. 1. T
   2. T
   3. F
   4. T
7. The egg of a hen represents a single cell and is big enough to be seen.
8. The change in shape is due to formation of pseudopodia which facilitates movement and help in capturing food.
9. The size of the cells has no relation with the size of the body of the animal or plant. It is not necessary that the cells in an elephant be much bigger than those in a rat. The size of the cell is related to its function.
10. Each organ in the system performs different functions such as digestion, assimilation and absorption. Different plant organ also perform specific functions. Each organ is further made up of smaller parts called ‘tissues’. A tissue is a group of similar cells performing specific function. Hence, ‘cell is the structural and functional unit of life ‘