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galina1969 [7]
3 years ago
13

In stage 2 of photossynthesis, NADP+ becomes NADPH by adding an H+. Where does the H+ come from?

Biology
1 answer:
Shtirlitz [24]3 years ago
4 0
Enzymes break up water or H2O into electrons, H+ ions, & oxygen atoms. Electrons replace the "highenergy" electrons that were lost in the electron transport chain.<span>Oxygen is released and the H+ ions are also released. - So the first one would be A. splitting of water or H2O

and the second one is B :)
</span>
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Kara has 21 collectible buttons to sell. She sells the small buttons for $3 and the large buttons for $4, and earns a total of $
Andre45 [30]

Answer: x+y=21, 3x+4y=68

Explanation:

Here x represents the number of small button and y represents the number of large button,

And, According to the question,

Total number of button = 21

Thus,  x + y = 21

Also, She sells the small buttons for $3 and the large buttons for $4, and earns a total of $68

That is,   3x + 4y = 68

Thus, the system of equations that can be used  to calculate the number of large and small buttons sold are,

x + y = 21,  3x + 4y = 68

First Option is correct.


7 0
2 years ago
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A longshore current moves down a sandy coastline, from north to south. Developers build a long, concrete breakwater at one point
telo118 [61]
The sandy beach erodes?
8 0
3 years ago
What is the atomic number of an atom that has 6 protons 6 neutrons and 6 electrons
velikii [3]
The answer would be 12 because Carbon has 6 Protons, which means that it has the same number of neutrons and electrons.
4 0
3 years ago
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True or hypothesis the rate that grass grows is related to the amount of light that is recevies
siniylev [52]
The hypothesis is true.
3 0
2 years ago
There are many interconnections between the arterial branches of the coronary circulation, which function to maintain a constant
DaniilM [7]

Answer:

The correct answer is option-C

Explanation:

Anastosomes is a connection between the two interconnected tubular structures like in the loops of intestine or the blood vessels.

The anastomy between the blood vessels is known as the circulatory anastomosis. The connection is formed between the arteries and arteries or between veins and veins or between arteirs and veins.

The anastosome connections forms the bypass route for the flow of blood if one pathway of blood id blocked.

Thus, option-C is the correct answer.

4 0
3 years ago
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