NCERT Solutions for Class 8 Science Science - NCERT Solution Chapter 8

Cell - Structure and Functions Class 8

Chapter 8 Cell - Structure and Functions Exercise Solutions

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Exercise : Solutions of Questions on Page Number : 98

Q1 :  

Indicate whether the following statements are True (T) or False (F).

(a) Unicellular organisms have one-celled body. (T / F)

(b) Muscle cells are branched. (T / F)

(c) The basic living unit of an organism is an organ. (T / F)

(d) Amoeba has irregular shape. (T / F)


Answer :

(a) Unicellular organisms have one-celled body. (T)

(b) Muscle cells are branched. (F)

(c) The basic living unit of an organism is an organ. (F)

(d) Amoeba has irregular shape. (T)

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Q2 :  

Make a sketch of the human nerve cell. What function do nerve cells perform?


Answer :

The function of a nerve cell is to transmit messages to the brain and also to take away messages from the brain to the receptor organs. Thus, it controls the working of different parts of the body.

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Q3 :  

Write short notes on the following.

(a) Cytoplasm

(b) Nucleus of a cell


Answer :

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Q4 :  

Which part of the cell contains organelles?


Answer :

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Q5 :  

State the difference between eukaryotes and prokaryotes.


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Q6 :  

Where are chromosomes found in a cell? State their function.


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Q7 :  

'Cells are the basic structural units of living organisms'. Explain.


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Q8 :  

Explain why chloroplasts are found only in plant cells?


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Q9 :  

Complete the crossword with the help of clues given below.

Across

1. This is necessary for photosynthesis.

3. Term for component present in the cytoplasm.

6. The living substance in the cell.

8. Units of inheritance present on the chromosomes.

Down

1. Green plastids.

2. Formed by collection of tissues.

4. It separates the contents of the cell from the surrounding medium.

5. Empty structure in the cytoplasm.

7. A group of cells.


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Q10 :  

Make sketches of animal and plant cells. State three differences between them.


Answer :

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<< Previous Chapter 7 : Conservation of Plants and Animals Next Chapter 9 : Reproduction in Animals >>

Science - NCERT Solution - Science : CBSE NCERT Exercise Solutions for Class 8th for Cell - Structure and Functions will be available online in PDF book form soon. The solutions are absolutely Free. Soon you will be able to download the solutions.

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