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Flashcards in Biochem 1 Deck (70)
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1

Acidic conditions in the liver as a result of alcoholism is due to build up of?
A. Acetate
B. Acetoacetate
C. Acid tone
D. Beta hydroxybuctyric acid

A. Acetate

2

What is quickest to become rancid?
A. Coconut oil
B. Olive oil
C. The fat
D. Butter

B. Olive oil

3

Which of the following vitamin deficiencies is responsible for xerophthalmia?
A. Retinol
B. Thiamine
C. Riboflavin
D. Niacin

A. Retinol

4

What leads to ketone body Synthesis?
A. increased levels of glucose
B. Complete oxidation of fat
C. Incomplete oxidation of fats
D. Incomplete breakdown of carbohydrates

C. Incomplete oxidation of fats

5

A deficiency of HMG CO-A reductase will result in which the following?
A. Decrease cholesterol Synthesis
B. Increased cholesterol Synthesis
C. Decrease fat Synthesis
D. Increased fat Synthesis

A. Decrease cholesterol Synthesis

6

If a substance contains 30% starch and 10% Maltose 10% Lactose 50% Sucrose what % is glucose, Galactose, Fructose?
A. 70, 10, 10
B. 70, 5, 25
C. 60, 30, 10
D. 70, 20, 10

B. 70, 5, 25

7

Which of the following vitamins is depleted from the body of a person is taking antibiotics?
A. A
B. C.
C. E.
D. K.

D. K

8

In the electron transport chain what contains copper?
A. Cytochrome C
B. Cytochrome A3
C. Cytochrome B
D. Coenzyme Q

B. Cytochrome A3

9

Which of the following carries fatty acid across the Mitochondrial membrane?
A. Malate
B. Lysine
C. Citrate
D. Carnitine

D. Carnitine

10

What is required for trans-skeleton reactions?
A. B-1
B. B-2
C. B. 3
D. B-6

A. B-1

11

In fatty acid biosynthesis which of the following requires NADPH?
A. Acetyl Co A dehydrogenase
B. Ketoacyl synthase
C. Ketoacyl reductase
D. Hydratase

C. Ketoacyl reductase

12

Which of the following enzymes is the apoenzyme of a holoenzyme?
A. Proteins
B. Vitamins
C. Minerals
D. Carbohydrates

A. Proteins

13

Which of the following is a low molecular weight substance that has to abide with another substance to be active?
A. Zymogen
B. Epimer
C. Ligand

B. Epimer

14

Which the following affects growth factor?
A. Zinc
B. Selenium
C. Vitamin C.
D. Vitamin E.

A. Zinc

15

In which process is glucose converted to a Monosaccharide phosphate?
A. Glycogenolysis
B. Glycogensis
C. Glycolysis
D. Gluconeogenesis

A. Glycogenolysis

16

What is an isomere of glyceraldehyde-3-phosphate?
A. Dyhydroacetone phosphate
B. Fructose-6-phosphate
C. Glucose-6-phosphate
D. Pyruvate

A. Dyhydroacetone phosphate

17

Gluconeogenesis with lipolysis but no protein synthesis will lead to?
A. Starvation
B. Being well fed
C. High glucose levels
D. High-fat levels

A. Starvation

18

Which of the following states produces the most fatty acids?
A. Starvation
B. High carbohydrate diet
C. High fatty diet
D. High protein diet

B. High carbohydrate diet

19

After Glycogen has been depleted from the body what is the source of carbon?
A. Proteins
B. Ketones
C. Dietary fats
D. Endogenous fats

A. Proteins

20

Which the following has the highest energy compound?
A. AMP
B. Creatinine phosphate
C. Glucose-6-phosphate
D. ATP

B. Creatinine phosphate

21

Which of the following is a negative allosteric inhibitor?
A. Inorganic phosphate
B. ATP
C. AMP
D. ADP

B. ATP

22

What substance supplies the main fuel to the brain?
A. Ketones
B. Proteins
C. Fat
D. Glucose

D. Glucose

23

Sucrose is made from the combination of what & what?
A. Glucose & lactose
B. Glucose & fructose
C. Glucose & glucose
D. Glucose & Galactose

B. Glucose & fructose

24

Which of the following vitamins is lethal in high doses?
E. Vitamin C.
F. Vitamin D.
G. Vitamin B6
H. Vitamin B3

F. Vitamin D

25

With the following is a function of enzyme?
A. Decrease the activation energy
B. Decreased rate of reaction
C. Consumed in reaction
D. The catalyce reaction ray product is converted to a substrate

A. Decrease the activation energy

26

Which of the following does not contain both an acidic and basic component?
A. Alanine
B. Glutamic acid
C. Citrate
D. Aspartate

A. Alanine

27

Which of the following is an essential fatty acid?
A. Linolenic acid
B. Palmitic acid
C. Oleic acid
D. Stealic acid

A. Linolenic acid

28

Which of the following is a precursor to prostaglandin’s?
A. Ecosanoids
B. Steroids
C. Glycolipids
D. Triacylglycerols

A. Ecosanoids

29

Which of the following indicates that an amino acid is nonessential?
A. Inability of body to synthesize it
B. Ability of body to synthesize it
C. Can be obtained from food
D. Body does not need it for function

B. Ability of body to synthesize it

30

Which of the following is a pyrimidine?
A. Adenine
B. Guanine
C. Uracil
D. Alanine

C. Uracil