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Biochem 1 > practice questions exam 2 > Flashcards

practice questions exam 2 Flashcards

1
Q

hydrogen bonds characterize which of the following protein structures?
a. primary
b. secondary
c. tertiary
d. quarternary

A

secondary

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2
Q

Carbon dioxide concentration increases. What is the effect on the kinetics of oxygen binding to hemoglobin?
a. shift to the right
b. shift to the left

A

shift to the right

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3
Q

Collagen is an example of which of the following protein structures?
a. primary
b. secondary
c. tertiary
d. quarternary

A

secondary

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4
Q

pH increases. What is the effect on the kinetics of oxygen binding to hemoglobin?
a. shift to the right
b. shift to the left

A

shift to the left

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5
Q

Hemoglobin is an example of which of the following protein structures?
a. Primary
b. Secondary
c. Tertiary
d. Quarternary

A

Quarternary

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6
Q

What does the Bohr effect result in?
A. Shift to the right
B. Shift to the left

A

Shift to the right

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7
Q

How many molecules of oxygen can bind to 1 molecule of hemoglobin?
A. 1
B. 2
C. 3
D. 4

A

4

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8
Q

In the kinetics of oxygen binding to hemoglobin, oxygen saturation is a function of which of the following?
A. pH
B. Temperature
C. Oxygen concentration
D. Carbon dioxide concentration

A

Oxygen concentration

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9
Q

By definition, hydrogen bonds cannot be part of which of the following protein structures?
A. Primary
B. Secondary
C. Tertiary
D. Quarternary

A

Primary

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10
Q

Which of the following statements is NOT true about peptide bonds?
A. They do not allow rotation
B. They are covalent bonds
C. They are double bonds
D. They are short bonds

A

They are double bonds D

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11
Q

Is butanoic acid saturated or unsaturated?
A. Saturated
B. Unsaturated

A

Saturated

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12
Q

Which of the following is the naturally occurring form of a fatty acid?
A. Trans
B. Cis

A

Cis

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13
Q

Which of the following functional groups does NOT contain a carbon double bonded to an oxygen?
A. Aldehyde
B. Alcohol
C. Carboxyl
D. Ketone

A

Alcohol

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14
Q

Which of the following molecules contains a double bond?
A. Pentenoic acid
B. Butane
C. Butanoic acid
D. Hexane

A

Pentenoic acid

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15
Q

How many carbons are in a triose?
A. 2
B. 3
C. 4
D. 6

A

3

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16
Q

How many carbons does a hexose contain?
A. 2
B. 3
C. 4
D. 6

A

6

17
Q

Which of the following functional groups contains a nitrogen?
A. Amino
B. Ketone
C. Carboxyl
D. Phosphate

A

Amino

18
Q

Which of the following molecules is a naturally occurring molecule?
A. D-arginine
B. D-alanine
C. L-galactose
D. D-glucose

A

D-glucose

19
Q

How many carbons are in a molecule of butanoic acid?
A. 1
B. 2
C. 4
D. 5

A

4

20
Q

Which of the following molecules is a fatty acid?
A. Ethanol
B. Pyruvic
C. Glucose
D. Butanoic acid

A

Butanoic acid

Biochem 1 (10 decks)

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