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Maslowich
2 years ago
15

Look at fig. 132 where the Punnett square shows a homozygous red grapfruit

Biology
1 answer:
sp2606 [1]2 years ago
7 0

Answer:

kljgy

Explanation:

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In the electron transport system
antoniya [11.8K]

Answer:

A. NADH and FADH2 both donate electrons at the same location.

Explanation:

In the respiratory chain, four large protein complexes inserted into the mitochondrial inner membrane transport NADH and FADH₂ electrons (formed in glycolysis and the Krebs cycle) to oxygen gas, reducing them to NAD⁺ and FAD, respectively.

These electrons have great affinity for oxygen gas and, when combined with it, reduce it to water molecules at the end of the reaction.

Oxygen gas effectively participates in cellular respiration at this stage, so its absence would imply interruption of the process.

NADH and FADH₂ electrons, when attracted to oxygen, travel a path through protein complexes, releasing energy in this process.

The energy released by the NADH and FADH₂ electrons in the respiratory chain in theory yields <u>34</u> <u>ATP</u>, however, under normal conditions an average of 26 ATP molecules is formed.

If we consider that these 26 molecules are added to the two ATP formed in glycolysis and two ATP formed in the Krebs cycle, it can be said that cellular respiration reaches a maximum yield of 30 ATP per glucose molecule, although theoretically this number was 38 ATP per glucose molecule.

5 0
3 years ago
Which compound is a reusable, complex protein that speeds up chemical reactions?
Irina-Kira [14]
Hello there! 

The answer is enzymes. 
Enzymes are biological catalysts, which means they decrease the amount of activation energy needed to start a reaction, therefore speeding up the rate of the reaction. They are part of the protein macromolecule group. Without them, our bodies would not process things efficiently or fast enough for us to live.

Hope I helped. Have a nice day.

5 0
2 years ago
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Why do you need your skeletal system to live? Explain.
Svet_ta [14]
Because without it you would have no support to stand 
6 0
3 years ago
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Which of the following is an indication that a planet may exist near a distant star?
Lina20 [59]
If a planet exists near a distant star, the star may have a very slight back and forth motion.
6 0
3 years ago
And I saw what is the function of the cell membrane
marishachu [46]

Answer:

Cell membrane provides protection for a cell. It gives assurance to a cell. It likewise gives a fixed climate inside the cell, and that film has a few distinct capacities.

Explanation:

4 0
2 years ago
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