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Biology 9th Class English Medium Chapter 7 Online Test MCQs With Answers

Question # 1

In living organisms, redox reactions involving the loss and gain of _____________ atom.

Choose an answer

Oxygen

Carbon

Nitrogen

Hydrogen

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Question # 2

Electron transport chain takes place in:

Choose an answer

Mitochondria

Cytoplasm

Nucleus

Ribosomes

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Question # 3

There are _________ P-bonds in an ATP molecule.

Choose an answer

Two

Nine

Six

Four

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Question # 4

The site for Calvin cycle is:

Choose an answer

Stroma

Grana

Plasmodesmata

Cytoplast

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Question # 5

Light reaction takes place in the ...... of chloroplast.

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Granum

Strome

Intergrana

All

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Question # 6

The major energy currency of all cells is:

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ADP

ATP

AMP

P-bonds

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Question # 7

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

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Glycolysis

Krebs cycle

Electron transport chain

All of these

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Question # 8

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

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Constructive

Destruction

Both

None

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Question # 9

Form which bonds of ATP molecule, energy is taken?

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P-P bonds

C-H bonds

C-N bonds

C-O bonds

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Question # 10

How many percent of the light falling on the leaf surface is absorbed:

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Question # 11

There are ......... types of photosystem.

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One

Two

Three

Four

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Question # 12

When we work hard we suffer from muscle fatigue because muscle cells:

Choose an answer

Carry out aerobic respiration at faster rate and so are tired

Carry out anaerobic respiration and so-accumulate more CO₂

Carry out anaerobic respiration and so accumulate lactic acid

Carry out aerobic respiration at faster rate and so burst

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Question # 13

Respiration is of ........... types.

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One

Two

Three

Four

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