Question 1

Within a living cell, the oxidation of one molecule is always coupled with the simultaneous _________ of another molecule. Which process best describes this relationship?

Accepted Answer

Reduction

Question 2

During the transitional step between glycolysis and the Krebs cycle, which molecule is produced from pyruvate?

Accepted Answer

Acetyl-CoA

Question 3

Essential amino acids are best defined as:

Accepted Answer

Amino acids that must be obtained from the diet

Question 4

In fatty acid metabolism, which molecule enters the Krebs cycle after beta-oxidation?

Accepted Answer

Acetyl-CoA

Question 5

Which hormone stimulates gluconeogenesis, especially during fasting?

Accepted Answer

Glucagon

Question 6

The electron transport chain is a stepwise release of energy for the generation of which molecule?

Accepted Answer

ATP

Question 7

Body temperature is ultimately regulated by which structure?

Accepted Answer

Hypothalamus

Question 8

Which of the following minerals function as coenzymes in metabolic reactions?

Accepted Answer

Magnesium and zinc

Question 9

What is the primary function of HDL (High Density Lipoprotein) in the body?

Accepted Answer

Transport cholesterol from tissues to the liver for excretion

Question 10

Vitamin D deficiency causes which of the following conditions?

Accepted Answer

Rickets

Question 11

Each gram of fat yields about how many kilocalories?

Accepted Answer

$$9\ 	ext{kcal}$$

Question 12

The hunger and satiety centers for the regulation of food intake are located in which part of the brain?

Accepted Answer

Hypothalamus

Question 13

An example of anabolism is:

Accepted Answer

The synthesis of proteins from amino acids

Question 14

The major regulator of Basal Metabolic Rate (BMR) is which hormone?

Accepted Answer

Thyroxine

Question 15

Too high a core body temperature can be fatal because it causes:

Accepted Answer

Denaturation of proteins

Question 16

In a negative feedback mechanism of body temperature regulation, in response to a decrease of body temperature, the hypothalamus releases:

Accepted Answer

Thyrotropin-releasing hormone (TRH)

Question 17

When you touch a cool object, you lose heat by which process?

Accepted Answer

Conduction

Question 18

A coupled chemical reaction that directly transfers a high energy phosphate group from a substrate to ADP, producing ATP, is called:

Accepted Answer

Substrate-level phosphorylation

Question 19

As a result of glycolysis, there is a net gain of how many ATP molecules per glucose?

Accepted Answer

$$2$$

Question 20

For every glucose molecule metabolized aerobically, how many $$	ext{CO}_2$$ molecules are produced?

Accepted Answer

$$6$$

Metabolism and Energy Regulation: Anatomy & Physiology Study Guidance

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