Question

The process which helps in releasing energy ,obtained from the breakdown of food-

1 point

Photosynthesis

Excretion

Respiration

Motion

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Answer 1

Answer:

(a) Photosynthesis Photosynthesis is the process wherein carbon dioxide as chief carbon source and water as electron donor to fix the atmospheric carbon dioxide into organic compounds (carbohydrates) i.e. conversion of light energy into chemical energy.

(b) Autotrophs Autotrophs are the organisms that use light as source of energy, carbon dioxide as chief carbon source and water as electron donor to fix the atmospheric carbon dioxide into organic compounds (carbohydrates).

(c) Chloroplasts it is a double membrane bound organelle that contain machinery for photosynthesis.

(d) Guard cells Each stomatal pore is surrounded by two guard cells that assist in stomatal opening driven by turgidity of guard cells.

(e) Heterotrophs The organisms that cannot make their own food from inorganic substances and depend on other organisms for their food.

(f) Pepsin A protein digesting enzyme.

Answer 2

Respiration

The process by which food is broken down to release energy is called respiration.

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