MEDIUM
7th CBSE
IMPORTANT
Earn 100

Nitrogen is an essential nutrient for plant growth. But farmers who cultivate pulse crops like green gram, Bengal gram, black gram, etc. do not apply nitrogenous fertilizers during cultivation. Why?

Important Questions on Nutrition in Plants

EASY
7th CBSE
IMPORTANT
Wheat dough if left in the open, after a few days, starts to emit a foul smell and becomes unfit for use. Give reason.
EASY
7th CBSE
IMPORTANT

Sunlight, chlorophyll, carbon dioxide, water and minerals are raw materials essential for photosynthesis. Do you know where they are available? Fill in the blank with the appropriate raw material.

Available in the plant:_____.

EASY
7th CBSE
IMPORTANT

Sunlight, chlorophyll, carbon dioxide, water, and minerals are raw materials essential for photosynthesis. Do you know where they are available? Fill in the blanks with the appropriate raw materials.

 Available in the soil:_____, _____.

EASY
7th CBSE
IMPORTANT

Sunlight, chlorophyll, carbon dioxide, water and minerals are raw materials essential for photosynthesis. Do you know where they are available? Fill in the blanks with the appropriate raw materials.

Available in the air:_____.

EASY
7th CBSE
IMPORTANT

Sunlight, chlorophyll, carbon dioxide, water and minerals are raw materials essential for photosynthesis. Do you know where they are available? Fill in the blank with the appropriate raw materials.

Available during day _____.

EASY
7th CBSE
IMPORTANT

Observe the given diagram and label the following terms given.
Stomatal opening, guard cell.

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HARD
7th CBSE
IMPORTANT

Match the organisms given in Column I with their mode of nutrition given in Column II.

Column I Column II
(a) Mango tree i) Insectivorous plants
(b) Mushroom ii) Heterotrophy
(c) Pitcher plant iii) Autotroph
(d) Cuscuta iv) Saprophyte
(e) Elephant v) Parasitic
MEDIUM
7th CBSE
IMPORTANT
Wild animals like tiger, wolf, lion and leopard do not eat plants. Does this mean that they can survive without plants? Can you provide a suitable explanation?