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Biology

1 answer:

inn [45]3 years ago

7 0

Electronic arrangement of the Carbon atom is : 2, 4

In short, Answer would be Option A

Hope this helps!

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Which of the following stages of cellular respiration involve cytochromes?

larisa86 [58]

Answer:

A. III only

Explanation:

Cytochromes are found only in the mitochondrial membrane as part of the electron transport chain. They are vital to the downward cascade of energy as electrons are passed from the NAD+ and FAD produced during glycolysis and the Krebs cycle into the electron transport chain to eventually produce ATP.

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In its role as an antioxidant, _____ guards cell membranes, body proteins, dna, and cholesterol, and thus helps prevent heart di

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Answer:

The answer is Vitamin E or α-tocopherol.

Explanation:

Vitamin E is a fat-soluble vitamin is first absorbed in the small intestine and is then stored at the liver. It is an antioxidant which protects cells from free radicals or reactive oxygen species (ROS). It can also prevent bad cholesterol from depositing in the blood vessels.

Vitamin E can be naturally found in nuts, seeds, and vegetable oils. As a dietary supplement, it takes the form of α-tocopherol. The RDA depends on the age of the person, as it may range from 4 mg to 15 mg per day.

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3 years ago

Gametes that are motile are often called _____.

laiz [17]

Gametes that are motile are often called sperm.

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3 years ago

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The following substrate is completely oxidized to CO2 by a cellular homogenate containing all necessary enzymes and coenzymes .

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Answer:

The correct answer is - 19 ATP.

Explanation:

One molecule of dihydroxyacetone phosphate fully oxidizes and generate 19 molecules of ATP by the following stochiometry

Direct ATP- 2

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ATP from GTP 1

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Total 19 or 19.5

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