Mer Scott
Quiz by , created more than 1 year ago

• Describe how cells capture light energy. • Describe how light energy is transduced into cellular energy. • Outline the inputs and outputs of photosynthesis.

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Mer Scott
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L13 Chloroplasts and photosynthesis

L13 Chloroplasts and photosynthesis

Question 1 of 13

1

Chromoplasts have decreased thylakoid membranes.

Select one of the following:

  • True
  • False

Explanation

Question 2 of 13

1

What could a possible explanation be for chloroplasts converting to chromoplasts?

Select one of the following:

  • Ripening of a fruit

  • Withering of the plant

  • Winter beginning

Explanation

Question 3 of 13

1

Which plastid would be responsible for storing starch in a potato?

Select one of the following:

  • Proplastid

  • Chloroplast

  • Chromoplast

  • Leucoplast

Explanation

Question 4 of 13

1

The light reactions in the thylakoid space:

Select one of the following:

  • Use ATP and electrons from NADP+

  • Release ATP and electrons on NADPH

Explanation

Question 5 of 13

1

Which wavelengths of light are absorbed for photosynthesis?

Select one of the following:

  • Cholorophyll-a

  • Cholorophyll-b

  • Carotenoids

  • All of the above.

Explanation

Question 6 of 13

1

400nm and 700 nm wavelengths are the most readily absorbed while green light is not absorbed at all.

Select one of the following:

  • True
  • False

Explanation

Question 7 of 13

1

(Choose all correct).
Engelman's experiment:

Select one or more of the following:

  • Used algae.

  • Used bean plants.

  • Involved a diffraction of light using a prism.

  • Showed photosynthetic activity was dependant on wavelength.

  • Showed photosynthetic activity was dependant on the speed of light.

Explanation

Question 8 of 13

1

Where would you find the light harvesting pigment cholorphyll?

Select one of the following:

  • In the stroma of chloroplasts.

  • In the thylakoid space.

  • In the thylakoid membrane.

Explanation

Question 9 of 13

1

Choose the correct statement.

Select one of the following:

  • Photosystems are part of light-harvesting complexes.

  • A reaction centre complex is composed of a photosystem and a light-harvesting complex.

  • The light-harvesting complex is a protein which sits in the thylakoid membrane.

  • The reaction centre complex surrounds the light-harvesting complex.

Explanation

Question 10 of 13

1

Order these steps of energy transfer from photons to chloroplasts:
An electron from the special chlorophyll in the reaction centre complex is excited.
Energy is passed along the chain of chlorophyll molecules.
Photon reaches light harvesting complexes/chlorophyll molecules.
The electron is transferred to the primary electron acceptor in the reaction centre complex.

Drag and drop to complete the text.

    3.
    2.
    1.
    4.

Explanation

Question 11 of 13

1

Choose the incorrect statement about the photosynthetic electron transport chain.

Select one of the following:

  • Photosystem II precedes Photosystem I.

  • Photosystem II provides two electrons to move H+ down it's gradient through the Cytochrome complex.

  • Photosystem I provides electrons for NADP+ to become NADPH via NADP+ reductase.

  • Photosystem II splits water and releases oxygen.

  • ATP synthase uses energy from H+ moving down its gradient to synthesize ATP.

Explanation

Question 12 of 13

1

Cyanobacteria are the anaerobic bacteria which form algael blooms.

Select one of the following:

  • True
  • False

Explanation

Question 13 of 13

1

Fill in the steps of the Calvin Cycle.
1. : Three CO2 react with three 5-carbon compounds to make three 6-carbon compounds. This involves a protein known as .
2. : ATP and 6 NADPH are used to reduce three CO2 to three 3-carbon compounds.
3. : ATP are used to change five 3-carbon compounds to the original three 5-carbon compounds.

Drag and drop to complete the text.

    Carbon fixation
    rubisco
    Reduction
    Regeneration of CO2 acceptor
    3
    6

Explanation

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