About what share of oxygen made in a leaf is used by its own mitochondria?
A90 percent
B25 percent
C10 percent
D50 percent
Answer & Solution
Correct answer: C. 10 percent
1. The rest escapes to the atmosphere.
2. About 10 percent supports the leaf's respiration.
3. Aerobic organisms use the remainder.
_Source: OpenStax Biology 2e, Chapter 8, Photosynthesis (CC BY 4.0)._
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