Question # 1

How many molecules of CO₂ are produced when krebs cycle operates once?

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01

02

03

06

Dalk reaction takes place in the .......... of chloroplasts.

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Grana

Strome

Intergrana

All

The potential energy is stored in chemical bonds and is released as _____________ energy when these bonds break.

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Heat

Light

Kinetic

Solar

When chemical bound broken energy is .............. .

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Released

Formed

Both

None of them

Exchange of water vapours and gases occurs in leaf through:

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Stomata

Epidermics

Xylem

Phloem

The major energy currency of all cells is:

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ADP

ATP

AMP

P-bonds

The breaking of one phosphate bond releases _________ kcal/mol of ATP.

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7.9

7.5

7.1

7.3

Photosynthesis is a .............. process.

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Constructive

Destruction

Both

None

When we work hard we suffer form muscle fatigue muscle cells.

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Carry out aerobic respiration and so accumulate more CO₂

Carry out anaerobic respiration and so accumulate lactic acid

Carry out aerobic respiration at faster rate and so accumulate lactic acid

Carry out aerobic respiration at faster rate and so are tired

The water from the soil enters into the root hairs by the process of

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Photosynthesis

Osmosis

Diffusion

Respiration

Electron transport chain takes place in:

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Mitochondria

Cytoplasm

Nucleus

Ribosomes

................ are called accessory pigments.

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Chlorophyll II

Xanthophyll

Carotenoids

All

Aerobic respiration needs free ............. .

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Carbon

Nitrogen

Oxygen

None

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