CBSE Class 7 Science Identify Who Am I Worksheet

Fri – Science

1. IDENTIFY WHO AM I

I) I convert starch into sugar

II) mucous is secreted by my walls

III)I am longest gland in your body

IV)I breakdown your food mechanically into small pieces

V)I mix saliva with food

VI) THE FAECAL MATTER IS REMOVED THROUGH ME, FROMYOUR BODY

VII) I Increase the area of absorption in small intestine

2.Give an example of each of the following----

i) a parasitic plant

ii) a useful fungus

iii) an insectivorous plant

iv) a plant having symbiotic relationship with Rhizobium

3. NAME THE FOLLOWING PROCESSES-----

I) Green plants making their food from carbon dioxide & water ,in the presence of sunlight & chlorophyll

ii) Mode of taking food by an organism and its utilization by the body

iii) Breaking of complex food substances into simpler forms

iv) Intake of food in the body

v) Passing of digested food into the walls of small intestine

vi Removal of faecal matter from the body

4. Match the following –
     Column I                           Column II
a. Carbohydrates           (i) formation of faeces
b. Stomach                    (ii) sugar
c. Large intestine           (iii) fatty acids and glycerol
d. Proteins                     (iv) acid release
e. Pseudopodia              (v) amino acid
f. Fats                            (vi) movement in amoeba