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In the process of respiration, energy is released from _______ molecules and stored in smaller ________ molecules.

A. glucose, ATP
B. lipids, triglycerides
C. protein, ATP
D. food, glucose

2 Answers

5 votes

Answer:

A. glucose, ATP

Step-by-step explanation:

  • Choice A is the best answer. During respiration the body's main source of energy is glucose. Oxygen and glucose are broken down in the body into water, and carbon dioxide and the energy is stored as ATP.
  • Choice B is incorrect. Lipids are fatty compounds and they can be metabolized to release energy. Triglycerides can store energy, however; they are oftentimes NOT smaller than lipids.
  • Choice C is incorrect. Although energy is stored as ATP the body's main source of energy is carbohydrates like glucose NOT protein.
  • Choice D is incorrect. Food can provide energy but this choice is too vague. Glucose can be used to burn energy but it does not store energy.

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User Nick Meehan
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4 votes

Answer:

A. glucose, ATP

Step-by-step explanation:

In the process of respiration, energy is released from glucose molecules through a series of chemical reactions, primarily in the form of cellular respiration. Glucose, a type of carbohydrate, is broken down in cells to produce energy. This energy is then stored in smaller molecules, primarily adenosine triphosphate (ATP), which acts as the primary energy currency in cells. ATP serves as a readily available source of energy for various cellular processes.

User Putty
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8.0k points