Unit Test Paper 2026-27 Science Class 8 Chapter 8. Cell - Structure and functions

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Unit Test Paper

Science - VIII

Chap-8 and 14

Timing: 1 Hour                               Maximum Marks: 30 

One Mark Questions: 

Q1. Name the substances which is added to solutions conducts electricity.

Q2. Write the full name of LEDs. 
Q3. Name a device which is used to test the electric current in the circuits. 
Q4. Define insulator. Give two examples.
Q5. What do you understand by chemical effects of currents?
Q6. Name the part of cell which contains cell organelles.
Q7. Where is gene located in the cell?
Q8. What are chromosomes? 

Two Marks Questions: 

Q9. If electrodes were immersed in water, and a current was passed, bubbles of oxygen and hydrogen were produced. 
     (i) On which electrode Hydrogen evolved. 
     (ii) On which electrode Oxygen evolved. 
 
Q10. What is electroplating? Name any three object which is made by electroplating. 
Q11. Name any five cell organelles.   
Q12.  Does rain water conduct electricity? if yes why? 
Q13. Write the differences between Eukaryote cells and Prokaryote cells. 
    
Four Marks Questions: 

Q14. What is chloroplast? Write its two functions.
Q15. Why is cell called the structural unit of living body? Explain
Q16. Write four differences between animal cells and plant cells. 

1. Chemical Reactions and Equations

Unit-Test I 

(Science)

Timming: 1 hour                                                                                    M.M : 20

Q1.   What do you understand by skeletal chemical equation?                           1