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Photosynthesis and Stomata Function Quiz

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Photosynthesis and Stomata Function Quiz

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Questions and Answers

What is the function of stomata in plants?

Collecting raw materials

Producing organic acids

Exchange of gases (Oxygen and Carbon dioxide) (correct)

Synthesizing food

How do desert plants utilize stomata differently from other plants?

They keep stomata closed during the night. (correct)

They produce organic acids at night for photosynthesis.

They only take up CO2 during the day.

They open stomata only at night for gas exchange.

What controls the opening and closing of stomatal pores in plants?

Turgidity of guard cells (correct)

Amount of sunlight

Presence of water vapour

Chlorophyll concentration

Why do guard cells become turgid during photosynthesis?

To increase osmotic pressure Signup and view all the answers

What is the primary function of chlorophyll in photosynthesis?

Absorbing sunlight Signup and view all the answers

Which part of the plant is responsible for the translocation of food to all parts of the plant body?

Phloem Signup and view all the answers

What is the main function of stomata in plants?

Transpire water Signup and view all the answers

Which structural component in a leaf is directly involved in regulating the opening and closing of stomata pores?

Guard cells Signup and view all the answers

What happens to the osmotic pressure within guard cells at night?

Decreases Signup and view all the answers

What causes the stomatal pore to close?

Exosmosis of water from guard cells Signup and view all the answers

Which theory states that stomata open as a result of increased sugar production during photosynthesis?

Sugar concentration theory Signup and view all the answers

What causes the stomata to close according to the K+ ion concentration theory?

Decreased K+ ion concentration Signup and view all the answers