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Home Q & A Board Biology-Related Homework Help General Biology
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Johnnyvic Johnnyvic
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6 years ago
As electrons pass from photosystem II to photosystem I, they return to a lower energy level,
  1.releasing free energy which is all lost as heat.
  2.used to pump protons across the thylakoid membrane.
  3.used to synthesize NADPH.
  4.used to split water and release oxygen.
  5.re-emitted as light.

Question 2

Autotrophs obtain their carbon from CO2.
  1.True
  2.False
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kkiahtheresekkiahtherese
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6 years ago
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Johnnyvic Author
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6 years ago
This calls for a celebration Person Raising Both Hands in Celebration
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