Question # 1

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

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Leaves could not yet 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

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

intensity of light is ........ at midday.

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Maximum

Minimum

Both

None

In which of the following steps of respiration, CO2 is produced?

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Glycolysis

Krebs cycle

Electron trransport

All of these

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

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01

02

03

06

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

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ATP

ADP

AMP

All

The raw materials in photosynthesis are:

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Water, Oxygen

CO₂, O₂

Water , CO₂

Glucose , Water

One molecule of glucose when broken down into CO2 H2O in aerobic respiration generates ........... ATP molecules.

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36 ATP

37 ATP

38 ATP

None of them

In dark reaction first of all CO₂ combines with:

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5-carbon compound

6-carbon compound

3-carbon compound

Already present glucose

There are _________ P-bonds in an ATP molecule.

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Two

Nine

Six

Four

......... is one of raw material for photosynthesis .

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Oxygen

Water

Carbon Dioxide

Nitrogen

Glycolysis takes place in ................. .

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Cytosol

Mitochondria

Lysosome

None

Photosynthesis is a /an _____ process.

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Metabolic

Catabolic

Anabolic

Chemical

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9th Class Biology Chapter 7 Bioenergetics English Medium KPK Boards Online Mcqs MCQs With Answers

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