Question # 1

The purpose of respiration is to ................ energy.

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Absorb

Release

Both

None

Exchange of water vapours and gases occurs in leaf through:

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Stomata

Epidermics

Xylem

Phloem

Redox reactions involve exchange of ____________

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Electrons

Protons

Neutrons

Atoms

At ..............°C the process of photosynthesis stops.

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20°C

30°C

25°C

45°cC

The raw materials in photosynthesis are:

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Water, Oxygen

CO₂, O₂

Water , CO₂

Glucose , Water

Carbon Dioxide is almost .......... percent in air.

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0,01

0.3

0,03

0.1

The air enters the leaf through __________

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Pits

Stomata

Mesophyll

Xylem vessels

Ribose is a _______ carbon sugar.

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Two

Three

Five

Ten

Chlorophyll pigment absorbs maximum light in wavelengths of:

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Green and blue

Green and red

Green only

Red and blue

Fermenting powers of bacteria are used in making:

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Soya sauce

Bread

Cheese

Cheese and yogurt

The water and carbon dioxide are the ................ in photosynthesis.

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Reactants

Products

Both

None

The major energy currency of all cells is:

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ADP

ATP

AMP

P-bonds

The concentration of carbon dioxide in the environment is:

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0.3%

0.03%

3%

3.01%

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