biochemistry Flashcards

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1
Q

ATP is an exergonic process.

A

true

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2
Q

Vitamin B is water soluble.

A

true

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3
Q

The nonoxidative phase is the reversible phase of the PPP.

A

true

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4
Q

Uncompetitive inhibitors have no change in the Km.

A

false

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5
Q

Vmax is directly proportional to the concentration of enzyme.

A

true

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6
Q

Fatty acid synthesis requires the citrate shuttle.

A

true

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7
Q

A suicide inhibitor binds to the active site.

A

false

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8
Q

The citric acid cycle occurs in the mitochondrial matrix.

A

true

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9
Q

Low-density lipoprotein moves cholesterol from the tissues to the liver.

A

false

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10
Q

Michaelis-Menten kinetics, what order of kinetics is it?

A

zero order

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11
Q

A scientist is testing a particular enzyme inhibitor. They find that the inhibitor binds to the active site. What describes this?

A

competitive inhibition

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12
Q

Enzymes help catalyze reactions by lowering the activation energy. The process in which the final product of an enzymatic reaction prevents earlier steps from continuing when enough final product has been formed is known as:

A

feedback inhibition

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13
Q

Which property does isoelectric focusing exploit in order to separate molecules?

A

charges

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14
Q

What is the rate-limiting step of the pentose phosphate pathway?

A

glucose-6 phostphate deg.

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15
Q

When does nondisjunction occur, for homologous chromosomes to fail to separate?

A

meiosis

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16
Q

What is the three letter code for phenylalanine?

A

Phe