NUTRITION IN PLANTS

Two organisms are good friends and live together. One provides shelter, water, and nutrients while the other prepares and provides food. Such an association of organisms is termed as

• saprophyte

• parasite

• autotrophs

• symbiosis

Pitcher plant traps insects because it grows in soils which lack in ---------

Which of the following statements is/are correct?

(i) All green plants can prepare their own food.

(ii) Most animals are autotrophs.

(iii) Carbon dioxide is not required for photosynthesis.

(iv) Oxygen is liberated during photosynthesis.

Choose the correct answer from the options below:

• ( i) and (iv)

• (ii) only

• (ii) and (iii)

• (i) and (ii)

In the absence of which of the following will photosynthesis not occur in leaves?

• vacuole

• stomata

• chlorophyll

• cytoplasm

Organisms which prepare food for themselves using simple naturally available raw materials are referred to as

• heterotrophs

• autotrophs

• parasites

• saprophytes

which gas is produced during photosynthesis.

• carbon dioxide

• oxygen

• hydrogen

• nitrogen

insectivorous plant is

• 
• 
• 
• 

When we observe the lower surface of a leaf through a magnifying lens we see numerous small openings. Which of the following is the term given to such openings?

• stomata

• midrib

• vein

• lamina

Which of the following raw material is available in the air for photosynthesis?

• oxygen

• carbon dioxide

• nitrogen

• hydrogen