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Stomata and Their Functions in Life Processes - Science Chapter 6

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Stomata and Their Functions in Life Processes - Science Chapter 6

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Questions and Answers

What is the main function of stomata in a plant?

Facilitate gaseous exchange and transpiration (correct)

Store excess nutrients for future use

Transport water from roots to leaves

Absorb sunlight for photosynthesis

How are stomatal pores opened and closed?

By the turgidity of guard cells (correct)

By the length of daylight hours

By the color of the sky

By the amount of rainfall

What happens to guard cells when they take up water?

They shrink and become flaccid

They become transparent

They swell and become turgid (correct)

They die off

Which organisms directly depend on green plants for food according to the text?

Heterotrophs Signup and view all the answers

What is heterotrophic nutrition?

Nutrition where an organism takes food from another organism Signup and view all the answers

What is the main difference between saprophytic and holozoic nutrition?

Digestion occurs outside the organism in saprophytic nutrition and inside the organism in holozoic nutrition. Signup and view all the answers

Which characteristic is unique to parasitic nutrition?

The organism derives nutrition from another living organism. Signup and view all the answers

How does amoeba obtain nutrients during holozoic nutrition?

Through the process of pseudopodia formation and food vacuole creation. Signup and view all the answers

Which step of holozoic nutrition involves the process of taking in food?

Ingestion Signup and view all the answers

How does the process of egestion occur in holozoic nutrition?

Undigested food is removed from the body as waste. Signup and view all the answers