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Bio Ch8

Question 1 of 20

1

The light reactions of photosynthesis supply the Calvin cycle with

Select one of the following:

  • Light energy

  • CO2 and ATP

  • H2O and NADPH

  • ATP and NADPH

Explanation

Question 2 of 20

1

Which of the following sequnes correctly represents the flow of electrons during photosynthesis?

Select one of the following:

  • NADPH -> O2-> CO2

  • H2O-> NADPH-> Calvin Cycle

  • NADPH -> Chlorophyll-> Calvin Cycle

  • NADPH-> Electron Transport Chain-> O2

Explanation

Question 3 of 20

1

Which of the following does NOT occur during the Calvin cycle?

Select one of the following:

  • Carbon is transformed into a 3-carbon molecule to make sugar

  • NADPH is transformed into NADP+

  • Release of oxygen

  • ATP is consumed to make ADP

Explanation

Question 4 of 20

1

Which of the following directly provides the energy needed for cell funcitons?

Select one of the following:

  • A phosphate group is removed from ATP

  • ADP loses a phosphate group

  • Electrons are passed to proteins

  • Oxygen picks up electrons

Explanation

Question 5 of 20

1

Where in plant cells are the energy-absorbing molecules for photosynthesis located?

Select one of the following:

  • stroma

  • thylakoids

  • ATP synthase

  • Mitochondria

Explanation

Question 6 of 20

1

Organisms, such as _________ that make their own food are called ________________.

Select one of the following:

  • Cactus, autotrophs

  • humans, heterotrophs

  • thylakoids, autotrophs

  • pigments, heterotrophs

Explanation

Question 7 of 20

1

Plants gather the sun's energy with light absorbing molecules called

Select one of the following:

  • pigments

  • thylakoids

  • chlorophlast

  • glucose

Explanation

Question 8 of 20

1

Thew stroma is the szpace that surrounds the

Select one of the following:

  • thylakoids

  • chloroplasts

  • plant cells

  • all of these

Explanation

Question 9 of 20

1

Where do light-dependent reactions take place?

Select one of the following:

  • in the stroma

  • outside the chloroplasts

  • on the thylakoids

  • only in chlorophyll molecules

Explanation

Question 10 of 20

1

The Calvin cycle takes place in the

Select one of the following:

  • stroma

  • granum

  • thylakoid membrane

  • chlorophyll molecules

Explanation

Question 11 of 20

1

What are the products of the Calvin cycle?

Select one of the following:

  • oxygen gas

  • ATP

  • Glucose

  • Light

Explanation

Question 12 of 20

1

During photosynthesis, the thylakoid space becomes

Select one of the following:

  • enriched with ATP

  • rich with H+

  • positively charged

  • both B and C

Explanation

Question 13 of 20

1

What happens during photosynthesis?

Select one of the following:

  • Hetertrophs consuime ATP

  • Heterotrophs produce ATP

  • Autotrophs consume carbohydrates

  • Autotrophs produce carbohydrates

Explanation

Question 14 of 20

1

Where are photosystems I and II found?

Select one of the following:

  • In the stroma

  • In the thylakoid membrane

  • In the Calvin cycle

  • In the cell membrane

Explanation

Question 15 of 20

1

The flow of what particles across the thlakoid membrane powers the production of ATP?

Select one of the following:

  • electrons or e-

  • hydrogen ions or H+

  • oxygen or O2

  • Carbon dioxide or CO2

Explanation

Question 16 of 20

1

The oxygen originally released in photosynthesis originally came from

Select one of the following:

  • water

  • glucose

  • carbon dioxide

  • Ribulose biphosphate

Explanation

Question 17 of 20

1

In Photosystem II of photosynthesis, from what does the photosystem steal an electron?

Select one of the following:

  • Glucose

  • Carbon Dioxide

  • Water

  • Oxygen

Explanation

Question 18 of 20

1

The second part of photosynthesis uses ATP and high energy electrons from NADPH to convert carbon dioxide into what?

Select one of the following:

  • Oxygen

  • Sugars

  • Waste products

  • Carbon dioxide

Explanation

Question 19 of 20

1

How is the H+ gradient produced in the thylakoid space?

Select one of the following:

  • H+ is pumped into the thylakoid space

  • H+ is produced when water is broken

  • None of the above

  • Both a and b

Explanation

Question 20 of 20

1

WHich of the following products of light reactions of photosynthesis are utilized in the Calvin cycle?

Select one of the following:

  • CO2 and glucose

  • H2O and O2

  • Electrons and H+

  • NADPH and ATP

Explanation

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