Class 10th


CLASS – 10

1 .In Photosynthetic process, atmospheric carbon di oxide is_________ to  carbohydrates                           

     a) oxidised                       b) Reduced
c) Neutralised d) Burnt

2    When water enters the guard cells the stomata                                                                                

     a) Opens                          b) Closes
c) Open or closes d) No effect

3    On seeing good food our mouth waters. This fluid is actually                                                              

     a) Water                          b) Hormone
c) Enzyme d) None of the above

4    The enzyme Pepsin is inactive in stomach without the presence of                                                  

     a) Nitric Acid                    b) Hydrochloric acid
c) Acetic acid d) Butyric acid

5    Villi present on the inner lining of the intestinal wall                                                                          

    a) Secretes enzymes for digestion
b) Secretes hormones
c) Decreases the surface area for absorption
d) Increases the surface area for absorption

6    During cellular respiration one molecule of glucose is first broken down into two molecules of_________

    a) Acetic acid                     b) Pyruvic acid
c) Lactic acid d) None of the above

7    Rajib was absent in the class because of muscle pain which he claims to be due to excess physical exercise he had done yesterday. This pain is due to

    a) Formation of lactic acid        b) Formation of acetic acid
c) Formation of Pyruvic acid d) Formation of Hydrochloric acid

8    Right part of the human heart contains                                                                                                 

    a) Oxygenated blood                b) Mixed blood
c) Deoxygenated blood d) No blood

9    The transport of soluble products of photosynthesis is called translocation and it occurs in  the part of the vascular tissue called

    a) Xylem                            b) Sclerenchyma
c) Phloem d) Collenchyma

10 In human each kidney has large number of filtration units called _________

    a) Light                             b) Taste
c) Smell d) Touch


  1. (b)  2. (a)  3. (c)  4. (b)  5. (d)  6. (b)  7. (a)   8.(c)  9. (c)  10. (d)