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11111nata11111 [884]
4 years ago
11

The electrons of photosystem II are excited and transferred to electron carriers. From which molecule or structure do the photos

ystem II replacement electrons come?
A) the electron carrier, plastocyanin
B) photosystem I
C) water
D) oxygen
Biology
1 answer:
dangina [55]4 years ago
5 0

Answer:

The correct answer is C) water

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There is one choice missing from this question:

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Biological muscle cells can be thought of as nanomotors that use the chemical energy of ATP to produce mechanical work. Measurem
bearhunter [10]

Answer:

The answer is 6.4 × 10^{-20} Joules

Explanation:

This question wants to effectively test your knowledge of the names of the negative powers of 10, so first of all, before calculating, let me explain what each of the symbols in the units given in the question means:

Force = 8.0 pN = 8.0 × 10^{-12} N

displacement = 8.0 nm = 8.0 × 10^{-9} N

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The answer is Mitochondria

Hope that helps! :)
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