Question # 1

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

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Glycolysis

Krebs cycle

Electron trransport

All of these

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

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Photosynthesis

Osmosis

Diffusion

Respiration

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

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

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Stroma

Thylakoid membrane

Lumen

Sacs

Fungi and ___________ bacteria get the prepared food.

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Motile

Non-motile

Phtosynthetic

Non-photosynthetic

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

Which of the following chemical is used to identify the starch in leaves?

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KOH

KHCO₃

Ethanol

Iodine solution

By-Product of Photosynthesis is:

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Glucose

Carbon dioxide

Oxygen

None of these

All ............. cells are always performing functions.

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Living

Non-living

Both

None

In which compound of the leaf cells, chlorophyll is present?

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Stroma

Thylakoids

Plasma membrane

Cytoplasm

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

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Glycolysis

Krebs cycle

Electron transport chain

All of these

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

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Carbon

Nitrogen

Oxygen

None

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

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One

Two

Three

Four

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