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

A cell hydrolyses ATP to ADP & inorganic phosphate & almost .............. Kcal energy is released.

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7.3 Kcal

7.4 Kcal

7.2 Kcal

7.5 Kcal

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

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Glycolysis

Krebs cycle

Electron transport chain

All of these

Pyruvic acid is produced in ______ respiration:

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Aeorbic

Anaerobic

Both aerobic and anaerobic

None of these

ATP molecule was discovered by:

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Fritz Lipmann

Calvin

Karl Lohmann

Hans krebs

Fermenting powers of bacteria are used in making:

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Soya sauce

Bread

Cheese

Cheese and yogurt

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

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Cytosol

Mitochondria

Lysosome

None

The reactions which do not require light during photosynthesis are called __________ reactions.

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Chemical

Redox

Dark

Light

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

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CO2

H2O

O2

All

____________ is a co-enzyme.

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NAD⁺

NADH

AMP

None

The 6-carbon compounds during the dark reactions of photosynthesis split into ____________ carbon compound.

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5

3

7

4

Anaerobic respiration is of ......... types.

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Two

Three

Four

Five

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

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One

Two

Three

Four

The word photosynthesis is a combination of two ............. words.

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Greek

Latin

German

Freech

______________ is an inorganic compound of carbon which have poor energy value.

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Glucose

ATP

CO₂

NADPH

Oxygen takes part in aerobic respiration is:

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Glycolysis

Link step between Glycolysis and Krebs cycle

Krebs cycle

Electron transport chain

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

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Chlorophyll II

Xanthophyll

Carotenoids

All

The light reactions of photosynthesis take place on the _____________ of chloroplasts.

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Stroma

Thylakoid membrane

Lumen

Sacs

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