Class 9th

SAMPLE QUSTION FOR BIOLOGY

CLASS – 9

  1. Which of the following stains is used for preparing the temporary stained mount of onion peel?

     a) Safranin                            b) Methylene blue           
c) Starch            d) Glycerine
  1. Which substance is added to prevent the tissue from

     a) Safranin                            b) Methylene blue           
c) Starch            d) Glycerine
  1. Put the following in correct order

           i) scrap the inner lining of the mouth                    ii) wash the mouth

        iii) put a drop of methylene blue on a slid              iv) put a drop of glycerine on the slide

     a) i,ii,iii,iv                         b) ii,i,iii,iv 
c) ii,i,iv,iii               d) ii,i,iii,iv
  1. A student watched a cheek cell mount stained with methylene blue, the colour of the cells will be

     a) pink                                b) blue                       
c) brown                 d) black
  1. A student watched an onion peel mount stained with safranin, the colour of the cells will be

     a) pink                                b) blue                       
c) brown                 d) black
  1. A student added iodine to an unknown solution, the solution turned blue. The given solution is
     a) glucose                             b) starch                  
    c) fat                       d) glycerine
  1. A student added HCI to a sample of dal, if metanil yellow is present in dal, then the colour will change to

     a) Yellow                              b) Red                             
   c) Blue                           d) No change
  1. On adding iodine to starch solution, the solution turns

     a) blueblack                           b) brown                          
c) red                             d) yellow
  1. A student watched some thin walled cells with lots of intercellular spacesin a transeverse section of a stem. The tissue must be

     a) Parenchyma                           b) Sclerenchyma    
c) Collenchyma     d) Chlorenchyma
  1. A student was asked to identify collenchyma in the slide. He must look for

a) thin walled cells with lots of intercellular spaces
b) thin walled cells with thickenings at the corners
c) thick walled cells with lots of intercellular spaces
d) thick walled cells with thickenings at the corners