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Photosynthesis Light Reactions Warm Up

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Questions and Answers

Why do plants look green?

Because carotenoids absorb other colors and reflect green light

Because chlorophyll absorbs other colors and reflects green light (correct)

Because carotenoids absorb green light and reflect other colors

Because chlorophyll absorbs green light and reflects other colors

What is the role of NADPH and ATP in the light reaction?

They are used to convert carbon dioxide to glucose

They provide energy for the synthesis of glucose (correct)

They transport electrons in the chloroplast

They are involved in capturing sunlight

What type of radiation is most commonly used by organisms?

Infrared radiation

Lower energy radiation

Higher energy radiation

Visible range radiation (correct)

What is the function of carotenoids in plant cells?

To reflect yellow and orange light (B) Signup and view all the answers

What is the function of the accessory pigments in the photosystems?

Act as antennas to absorb sunlight (A) Signup and view all the answers

What does the thylakoid membrane do?

It produces ATP and NADPH (C) Signup and view all the answers

Where does the light-dependent reaction occur?

Inside the thylakoid and on its membrane (B) Signup and view all the answers

What is the primary product of the light-independent (Calvin Cycle) reactions?

Glucose (B) Signup and view all the answers

What is the main function of the cyclic electron transport?

Produce ATP through chemiosmosis (A) Signup and view all the answers

How is ATP produced in the light-dependent reactions?

Through chemiosmosis due to a proton gradient inside the thylakoid space (D) Signup and view all the answers