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MrRa [10]
4 years ago
15

URGENT!!

Biology
2 answers:
vitfil [10]4 years ago
6 0
The fossil record is the answer of this question.
Dafna1 [17]4 years ago
3 0
<h2>Answer:</h2>

The correct answer is option D which is the fossil record.

<h3>Explanation:</h3>
  • There are any theories of evolution that explain that specie changes over time.
  • But the evidence is not any written theory. It is something practical which can be seen in reality.
  • As the fossil record is the data and fossils of a specie that are found by archaeologists.
  • From observing fossils we can see that species are changing overtime.

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The ATP synthase can be thought of as a type of molecule motor that is powered by the flow of ____________ through the subunits
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Answer:

The ATP synthase can be thought of as a type of molecule motor that is powered by the flow of __H+_ through the subunits and __down_ their concentration gradient.

Explanation:

There are two steps for the synthesis of carbohydrates in plants; one is light reaction and other is dark reaction. In light reaction the ATP and NADPH are produced from sunlight and these molecules are utilized for combining the carbon molecules in dark reaction.

Before we discuss chemiosmosis (Mechanism of ATP production) we should know that light reaction takes place in the thylakoid membrane of chloroplast. During the light reaction electrons removed from water are excited by light in photosystem I and photosystem II. These excited electron release the energy while traveling down the electron transport chain which is utilized to pump the H+ ions to stroma from lumen. This build a concentration difference of H+ ions across the membrane.

So when these H+ ions flow from stroma to lumen i.e. higher potential to lower potential they passes through ATP synthase complex. ATP synthase produces the ATP by the phosphorylation of ADP that why mechanism is also referred as Photophosphorylation.

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