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siniylev [52]
2 years ago
15

What would happen if complexes I-IV of the electron transport chain pumped protons in the opposite direction?

Biology
1 answer:
ollegr [7]2 years ago
5 0

Answer:

The correct answer is - c. No ATP would be synthesized.

Explanation:

In the electron transport chain there are four complexes, complexes I-IV, pumps the protons from the matrix of the mitochondria into the intermembrane space. This is the downhill movement of the electrons that helps in synthesizing the ATP molecules.

If the complexes move or pump the electron uphill or against the gradient there would be no ATP formation as there would be no interchange of proton and electron interchange.

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When a spoon tarnishes this type of chage has occurred?
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I think its rest because it tarnishes so witch means dullness of color; loss of brightness according to the dictionary and when something rest it loses color and becomes a copper brown color 
4 0
3 years ago
Which best describes Darwin's studies that led to the theory of evolution?
ddd [48]

Answer:

The answer is B, extensive research of an individual organism over many years.

Explanation:

The question is asking, what best describes Darwin's studies that led to the theory of evolution, it would be a lot of research over a long period of time. Think, if you were to do a school project, would you get your best results over a short or long period of time with little or a lot of evidence/research? So, B is the best answer, I believe.

(PLEASE BRAINLIEST)

8 0
3 years ago
Pleaseeee helppppppppp
Zepler [3.9K]

Answer No 1:

The correct option is c) Both mitochondria and chloroplast contain DNA that is different from the nucleus.

Explanation:

The theory of endosymbiosis proposes that all the eukaryotic organisms have arisen from prokaryotes. This theory proposes that organelles such as DNA and nucleus were once prokaryotic cells. These smaller prokaryotic cells were engulfed by the larger prokaryotes which gave rise to eukaryotes eventually. These organelles possess their own DNA which is different from the DNA of the nucleus.

Answer No 2:

The correct option is C) aerobic organisms

Explanation:

The scientists propose that the initial conditions of the Earth were not favourable for  supporting aerobic life. Scientists propose that photosynthetic organisms like cyanobacteria released oxygen into the environment which made the life of aerobic organisms possible on Earth.

Answer No 3:

The correct option is A) It proved the theory of spontaneous generation.

Explanation:

Spontaneous generation can be described as the generation of life from non-living things. Some scientists proposed that living organisms are formed by non-living things.

4 0
3 years ago
Describe the process of photosynthesis and cellular respiration.
MaRussiya [10]

Answer:

Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as food by the plant and oxygen is a by-product. Cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are by- products and ATP is energy that is transformed from the process

Explanation:

5 0
1 year ago
Help it’s a test giving brainleist and like
Inessa [10]

Answer:

fertilization

this is your answer

6 0
3 years ago
Read 2 more answers
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