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Biochem 1 > practice questions > Flashcards

practice questions Flashcards

1
Q

what enzyme elongates in transcription?
a. ligase
b. rna polymerase II
c. DNA polymerase I
d. DNA polymerase III

A

RNA polymerase II

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2
Q

what enzyme elongates in DNA replication?
a. dna polymerase III
b. dna polymerase I
c. rna polymerase II
d. ligase

A

dna polymerase III

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3
Q

what process forms a protein?
a. transcription
b. translation
c. transduction
d. replication

A

translation

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4
Q

how many carbons are in a ribose?
a. 3
b. 4
c. 5
d. 6

A

5

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5
Q

where does translation take place?
a. lysosome
b. mitochondria
c. nucleus
d. ribosome

A

ribosome

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6
Q

which process forms okazaki fragments?
a. replication
b. transduction
c. transcription
d. translation

A

replication

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7
Q

what is formed by transcription?
a. DNA
b. tRNA
c. mRNA
d. rRNA

A

mRNA

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8
Q

what kind of bond attaches adenine to thymine in a DNA molecule?
a. hydrogen
b. covalent
c. phosphodiester
d. none, adenine is attached to thymine

A

hydrogen

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9
Q

where does DNA polymerase III act?
a. leading strand
b. lagging strand
c. both strands
d. neither strand

A

both strands

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10
Q

what enzymes link okazaki fragments?
a. ligase
b. DNA polymerase III
c. helicase
d. DNA polymerase I

A

ligase

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11
Q

what kind of bond forms an individual water molecule?
a. covalent
b. phosphdiester
c. ionic
d. hydrogen

A

covalent

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12
Q

what kind of bond causes multiple water molecules to associate, forming a tetrahedron?
a. hydrogen
b. covalent
c. double
d. phosphodiester

A

hydrogen

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13
Q

which of the following leads to edema?
a. hypovolemic ECF
b. hypervolemic ICF
c. hypertonic ECF
d. hypertonic ICF

A

hypertonic ICF

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14
Q

which leads to dehydration?
a. hypervolemic ECF
b. Hypotonic ECF
c. Hypovolemic ICF
d. Hypervolemic ICF

A

Hypervolemic ICF

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15
Q

A hypervolemic ECF leads to which of the following?
a. edema
b. dehydration

A

edema

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16
Q

A hypertonic ECF leads to which of the following?
a. edema
b. dehydration

A

dehydration

17
Q

Which of the following conditions results in edema?
a. Hypervolemic ICF
b. Hypovolemic ECF
c. Hypotonic ICF
d. Hypotonic ECF

A

Hypotonic ECF

18
Q

Which of the following conditions results in dehydration?
a. Hypotonic ECF
b. Hypotonic ICF
c. Hypertonic ICF
d. Hypovolemic ICF

A

Hypotonic ICF

19
Q

Hypervolemic ECF results in which of the following?
a. edema
b. dehydration

A

edema

20
Q

Hypertonic ECF results in which of the following?
a. edema
b. dehydration

A

dehydration

21
Q

what conclusion can be drawn when an equilibrium constant is large?
a. reaction is at equilibrium
b. reaction favors the reactants
c. reaction favors the products

A

reaction favors the products

22
Q

what is the fastest human buffering system?
a. chemical
b. respiratory
c. renal

A

chemical

23
Q

what is the most permanent human buffering system?
a. chemical
b. renal
c. respiratory

A

renal

24
Q

all of the following can bind to hemaglobin except?
a. hydrogen
b. carbon dioxide
c. oxygen
d. all of these can bind to hemaglobin

A

all of these can bind to hemaglobin

25
Q

You new patient has a lung condition which makes it difficult for her to expel carbon dioxide. Which of the following conditions are you concerned about her developing?
a. respiratory acidosis
b. respiratory alkalosis
c. metabolic acidosis
d. metabolic alkalosis

A

respiratory acidosis

26
Q

Hyperventilation (exhaling excessive carbon dioxide) can result in which of the following conditions?
a. respiratory acidosis
b. respiratory alkalosis
c. metabolic acidosis
d. metabolic alkalosis

A

respiratory alkalosis

27
Q

Your new patient is taking a very acidic medication. Which of the following conditions are you concerned about them developing?
a. respiratory acidosis
b. respiratory alkalosis
c. metabolic acidosis
d. metabolic alkalosis

A

metabolic acidosis

28
Q

Your new patient is consuming an excessive amount of Tums (bicarbonate). Which of the following conditions are they at risk of developing?
a. respiratory acidosis
b. respiratory alkalosis
c. metabolic acidosis
d. metabolic alkalosis

A

metabolic alkalosis

29
Q

what is the respiratory compensation for metabolic acidosis?
a. exhale less carbon dioxide
b. exhale more carbon dioxide

A

exhale more carbon dioxide

30
Q

what is the respiratory compensation for metabolic alkalosis?
a. exhale less carbon dioxide
b. exhale more carbon dioxide

A

exhale less carbon dioxide

Biochem 1 (5 decks)

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