Question # 1

When a plant was kept in darkness for many days, many days, its leaves turned yellow. Why?

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Leaves could not get oxygen and so there was no photosynthesis

Leaves could not get light and so there was no respiration

Leaves could not get oxygen and so there was no respiration

Leaves could not get light and so there was no photosynthesis

............... is abbreviated from Adenosine Tri Phosphate.

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ATP

ADP

AMP

All

Most of the energy during ATP formation escapes in the form of:

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Waves

Bonds

Heat

Chemical

Pyruvic acid is produced in ______ respiration:

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Aeorbic

Anaerobic

Both aerobic and anaerobic

None of these

.................. does not require sunlight.

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Photosynthesis

Respiration

Both

None

ATP molecule was discovered by:

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Fritz Lipmann

Calvin

Karl Lohmann

Hans krebs

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

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7.9

7.5

7.1

7.3

The major energy currency of all cells is:

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ADP

ATP

AMP

P-bonds

............... is an essential requirement of photosynthesis.

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CO2

H2O

O2

All

______________ reactions are the direct source of energy.

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Oxidation

Redox

Reduction

None

Which of these can enter into Krebs cycle?

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Glucose

Pyruvic acid

Citric acid

Acetyl Co.A

By-Product of Photosynthesis is:

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Glucose

Carbon dioxide

Oxygen

None of these

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