Question 1

What would be the effects of an iron deficiency on the enzymes that require iron for their activation?

Accepted Answer

The answer of What would be the effects of an...

Question 2

Which of the following cells must rely on anaerobic metabolism for ATP production?

Accepted Answer

A) liver cells 
B) epidermal cells 
C) red blood cells 
D) neuronal cells

Question 3

In addition to the small intestine, alcohol is absorbed directly from the:

Accepted Answer

A) mouth. 
B) esophagus. 
C) stomach. 
D) large intestine.

Question 4

Carnitine has been sold as a "fat burning" supplement. Most studies find that carnitine supplementation is not effective in those with adequate levels; however, explain why someone might argue that carnitine can help "burn fat."

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The answer of Carnitine has been sold as a "fat...

Question 5

The production of energy from carbohydrates through oxidation-reduction reactions ultimately yields:

Accepted Answer

A) hydrogen and nitrogen. 
B) carbon monoxide and a free radical. 
C) water and carbon dioxide. 
D) glucose and fructose.

Question 6

The primary high energy molecule in human metabolism is:

Accepted Answer

A) nicotinamide dinucleotide. 
B) alcohol. 
C) glucose. 
D) adenosine triphosphate.

Question 7

The oxidation of alcohol occurs primarily in the:

Accepted Answer

A) pancreas. 
B) stomach. 
C) bloodstream. 
D) liver.

Question 8

Explain why triglycerides are the most useful form of stored energy.

Accepted Answer

The answer of Explain why triglycerides are the most useful...

Question 9

Juan ate a healthy, well-balanced meal four hours ago and is resting comfortably on the couch. Which metabolic pathway is providing most of his ATP?

Accepted Answer

A) beta oxidation 
B) glycolysis 
C) glucose oxidation 
D) lipogenesis

Question 10

Cynthia just finished eating a balanced meal and is now watching the television. Which of the following is providing the majority of her cells' energy needs?

Accepted Answer

A) lipolysis 
B) gluconeogenesis 
C) oxidative glycolysis 
D) deamination

Question 11

A molecule that gives up electrons is:

Accepted Answer

A) reduced. 
B) condensed. 
C) oxidized. 
D) hydrolyzed.

Question 12

Omar is a marathon runner. He tells you that he has heard that fat is the primary energy source used for endurance events and that he is going to switch to a high-fat, low-carbohydrate diet to improve his performance. Do you agree with him? Why or why not?

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The answer of Omar is a marathon runner. He tells...

Question 13

Which food should be avoided in galactosemia?

Accepted Answer

A) skim milk 
B) whole wheat bread 
C) oranges 
D) diet sodas

Question 14

Shelley needs to be home in two hours. She has had three drinks in the past hour and would like to speed up the metabolism of alcohol so she can drive home. What advice would you provide her?

Accepted Answer

A) Drink a cup of coffee and wait one hour before driving. 
B) Take a cab, there is nothing she can do to bring her blood levels down in time. 
C) Take a brisk walk for 30 minutes and then drive home. 
D) Take an herbal supplement for alcohol metabolism and wait for one hour before driving.

Question 15

In the absence of oxygen, glucose is catabolized to:

Accepted Answer

A) glycogen. 
B) phosphoenolpyruvate. 
C) lactic acid. 
D) adenosine monophosphate.

Question 16

A doctor sees a patient who is asking for a prescription for pain killers. The patient explains that they used to cope with the pain by drinking three beers each evening but that they don't notice the same euphoric feeling anymore. The doctor can smell alcohol on the patient's breath and suspects that the patient often abuses alcohol. The doctor refuses to give the patient a prescription for pain killers. What can the doctor say to explain why the patient does not feel an effect after consuming 3 beers any longer. Is the doctor's decision to refuse pain killers correct? Explain why or why not. Include information on how alcohol is metabolized in your response.

Accepted Answer

The answer of A doctor sees a patient who is...

Question 17

You have eaten a large meal that provided an excessive amount of carbohydrates, ketogenic amino acids, and alcohol. What process will your body use to convert these nutrients to a form of energy that can be easily stored?

Accepted Answer

A) gluconeogenesis 
B) lipogenesis 
C) transamination 
D) glycolysis

Question 18

Which cellular organelle is the primary site of ATP production?

Accepted Answer

A) ribosome 
B) cytoplasm 
C) endoplasmic reticulum 
D) mitochondrion

Question 19

The tricarboxylic acid cycle (TCA)is a continuous circle of how many metabolic reactions?

Accepted Answer

A) 4 
B) 8 
C) 11 
D) 21

Question 20

When creating a protein, amino acids are linked by a peptide bond and a molecule of water is released. What type of a reaction is this? Would this reaction require energy or release energy? Explain why.

Accepted Answer

The answer of When creating a protein, amino acids are...

Exam 7: Metabolism: From Food to Life