CBSE CLASS 7 IMPORTANT QUESTIONS OF NUTRITION IN PLANT

                                       Nutrition in plants

1. Fill in the blanks

a. Plants prepare their food by the process of………….

b. The organism that can prepare their own food are called……….

c. Green plants are called -----------------, since they synthesize their own food.

c. Oxygen is released by plants during ------------------.

d. -------------------- live on dead and decaying animals.

e. During photosynthesis, solar energy is trapped by the pigment called -----------.

f. -------------- is the ultimate source of energy.

g. -------------------- is the green colored pigments present in leaves.

h. The food synthesized by the plants is stored as -------------------.

i. ………….is not required by plant for food synthesis? (Water, Oxygen, Carbon dioxide, Chlorophyll)

j. Which one is an insectivorous plant?. (Banyan tree, Cuscuta, Pitcher plant, Neem plant)

k. In the process of photosynthesis, the gas given out by green leaves is……….

l. To test the presence of starch by iodine, the green leaf is first boiled in alcohol to………..

m. Plants obtain nitrogen from ……………….

n. Plant intake …... during respiration.

o. Solar energy is captured by ……………….in plant.

p. Mushroom is a ……………………… organism.

q. Gas released during photosynthesis is --------------------.

r. Minute pores on leaf surface for exchange of gases are known as --------------.

s. Balance between CO2 and O2 is maintained by………………….

t. …………….., gas is released in the process of photosynthesis.

u. Green plants prepare their food, hence they are ………………

v. Insectivorous plants are found mostly in areas which are…………………..

w. …………………. is an insectivorous plant.

x. Green pigments present in the leaves are called……………….

y. ……………………….one is saprophytic organism.

z. Rate of photosynthesis is dependent upon……………………

5. Match the following.

Column A                                  Column B

a. Autotrophs                     i Tiger

b. Heterotrophs                ii. Mushroom

c. Carnivores                      iii. Deer

d. Saprophytes                  iv. Green plants

e. Parasite                           v. Animals

f. Exchange of gases         vi. Rhizobium

g. Nitrogen                          vii Chlorophyll

h. Omnivores                      viii. Stomata                   

i. Photosynthesis               ix. Amarbel

j. Herbivores                       x. Bear

k. Pitcher plant                  xi. Insectivores

7. What is photosynthesis?

8. Distinguished between parasite and saprophytes.

9. What are insectivorous plants? Give two examples.

7. What is the mode of nutrition in plants?

8. What is symbiotic relationship? How it benefits the organisms?

9. Why green leaf is boiled in alcohol before testing it for starch.

10. Rearrange the letters to find out the words related to plant nutrition.

a. ROPHYLCHLO

b. UNLISUNHGT

c. TERAW

d. TOSAMTA

7. What are Heterotrophs? Give two examples.

8. What are nutrients? Name main nutrients.

9. Why is sun said to be ultimate source of energy?

10. Name the following.

a. A parasitic plant which is devoid of leaves, having yellow, slender tubular stem.

b. A solution used to test the presence of carbohydrates.

c. A plant that has both autotrophic and heterotrophic nutrition.

d. The process by which organism obtain energy from the digested food.

7. What is parasitic nutrition? Give two examples.

8. Name the raw materials required for photosynthesis.