Marine primary producers - absorption of light for photosynthesis

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1. What allows certain algae to grow in deep water?

  • Presence of accessory pigments which can absorb high wavelength light (red)
  • Presence of accessory pigments which can absorb short wavelength light (green/blue)
  • Presence of accessory pigments which can absorb high wavelength light (green/blue)
  • Presence of accessory pigments which can absorb short wavelength light (red)
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Other questions in this quiz

2. How is light wavelength related to the depth to which it penetrates in water?

  • Light penetration is not affected by light wavelength
  • Shorter wavelength light penetrates to lower depths
  • Higher wavelength light penetrates to lower depths
  • None of the above

3. Which pigment(s) absorb red light?

  • Both fucoxanthin and phycoerythrin
  • Fucoxanthin
  • Chlorophyll a
  • Phycoerythrin

4. Which pigment(s) absorb blue light?

  • Phycoerythrin
  • Chlorophyll a
  • Both fucoxanthin and phycoerythrin
  • Fucoxanthin

5. Which color(s) of algae are most abundant near the ocean surface?

  • Both brown and red
  • Brown
  • Green
  • Red

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