Exam 2 Flashcards

(24 cards)

1
Q

1st Law of Thermodynamics

A

Energy cannot be created or destroyed, but it can be converted from one form to another

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2
Q

2nd Law of Thermodynamics

A

In every energy transfer, some energy is lost as heat energy.
Entropy is the disorder in the universe

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3
Q

In the following reaction, which is oxidized and which is reduced?

A + B = A+ + B-

A

A is oxidized and B is reduced.

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4
Q

Coenzyme

A

organic molecule
enhances enzyme activity/acts like enzyme
redox reactions

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5
Q

Cofactor

A

inorganic metal ion
regulates enzyme activity
facilites reactions

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6
Q

How does feedback inhibition work?

A

The product of an enzyme interacting w a substrate interacts with an inhibitor enzyme which blocks the pathway of the subtrate

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7
Q

The reducing agent is…

A

Oxidized.

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8
Q

The oxidizing agent is…

A

Reduced.

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9
Q

What are the factors that affect the function of an enzyme?

A

Temperature, pH, substrate concentration

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10
Q

Entropy is the measure of ___

A

Disorder

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11
Q

Net energy in exergonic reaction

A

—G

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12
Q

Net energy in endergonic reaction

A

+ G

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13
Q

What kinds of genes affect the cell cycle when mutated

A

Tumor suppressant
Proto oncogenes

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14
Q

What is the FtsZ protein

A

Forms the ring that allows for binary fission

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15
Q

What is the function of fermentation

A

Returning NADH to NAD+
By donating electrons to pyruvate
To form lactic acid / ethanol

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16
Q

Ribozyme

A

RNA that acts like an enzyme and catalyzes reactions involving RNA

17
Q

Genome

A

complete set of all DNA material

18
Q

Chromosome

A

condensed coiled version of DNA

19
Q

ChromatiD

A

identical copies of a replicated chromosome

20
Q

ChromatiN

A

uncoiled version of DNA

21
Q

Centriole

A

rod like thingy made of microtubules
in the middle of centrosome

22
Q

Centrosome

A

shit where the spindles come out of

23
Q

Centromere

A

Chromosome – kinetochore, where the centrioles connect during cell division, part that connects 2 sister chromatids