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Post-Test
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1
Which is necessary for beta-oxidation?
A)Breakdown of glucose to pyruvate
B)Formation of excess ketone bodies
C)Breakdown of fat to 2-carbon units named Acetyl-CoA
D)Ketosis
2
Which of the following is FALSE about anaerobic metabolism?
A)Cells without mitochondria must use anaerobic metabolism.
B)Red blood cells use anaerobic metabolism.
C)It produces 50% of the energy in glucose to ATP compared to aerobic respiration.
D)Muscle cells use anaerobic glycolysis during intense exercise.
3
What is the name of the process that creates ATP when oxygen is available?
A)Ketogenesis
B)Urea cycle
C)Gluconeogenesis
D)Citric acid cycle
4
Which of the following is a role of acetyl-CoA in cellular metabolism?
A)Participating in gluconeogenesis
B)Making glucose
C)Undergoing many metabolic conversions in the citric acid cycle
D)All of these choices are correct
5
Ketogenesis occurs in which of the following situations?
A)Incomplete fatty acid oxidation
B)Too many carbohydrates
C)Incomplete protein digestion
D)Improper functioning of the B vitamins in the citric acid cycle
6
Which of the following is the term for making new glucose?
A)Beta-oxidation
B)Glycolysis
C)Electron transport chain
D)Gluconeogenesis
7
Which of the following occurs during fasting?
A)Stored glycogen and fats fuel the body for 3 days.
B)The body won't break down lean muscle tissue for fuel.
C)During the first few days of a fast, body protein is broken down rapidly.
D)Fatty acids can be used for gluconeogenesis.
8
Which of the following is a fate of excess fat in the diet?
A)Excess fat converts to glucose for energy
B)Eating more fat than needed will be first stored as glycogen
C)A lot of energy is required to convert dietary fat into body fat
D)Fat consumed in excess of need goes immediately into storage of adipose cells
9
Which of the following is NOT a fate of excess protein in the diet?
A)Extra muscle development
B)Amino acids will increase in use for energy
C)Ammonia is produced, converted to urea, and excreted in urine
D)Amino acids will be broken down and converted to fat
10
Which of the following occurs when an excess of carbohydrate is eaten?
A)Carbohydrates will circulate as blood sugar, then be stored as fat
B)Carbohydrates are immediately stored in adipose tissue as fat
C)Carbohydrates are first used to maximize glycogen storage
D)The pathway for storing carbohydrate as fat is very active in humans
11
Which of the following occurs during feasting?
A)Protein synthesis
B)Glycogen synthesis
C)Fat synthesis
D)All of these choices are correct
12
An example of an inborn error in metabolism is _____.
A)PKU
B)Lactose intolerance
C)Gluconeogenesis
D)Sickle cell anemia
13
The metabolism of amino acids for energy takes place mainly in the ____.
A)Muscles
B)Liver
C)Kidneys
D)All of theses choices are correct
14
Fasting encourages which of the following?
A)Glycogen synthesis
B)Fat synthesis
C)Protein synthesis
D)Synthesis of ketone bodies
15
Which ketone body can be sensed on the breath of someone with ketosis?
A)Acetoacetic acid
B)Beta-hydroxybutyric acid
C)Acetone
D)All of these choices are correct





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