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MCAT > Biological Science 2 > Flashcards

Biological Science 2 Flashcards

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MCAT flashcards
0
Q

conformers

A

same atoms with different rotations about the single bond

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1
Q

Constitutional Isomers

A

two have the same molecular formulas but atoms are bonded in different arrangements.

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2
Q

Configurational isomers

A

stereoisomers (enantiomers or diastereomers)

Bonded in the same manner but different arrangements in space

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3
Q

elevation of diaphram

A

decreases lung volume= decreases in total lung capacity (total amount of air in lungs at maximal inspiration)

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4
Q

pooling of blood=?

A

allows tissue to extract more oxygen from blood than in a healthy patient so oxygen content of blood returning to heart in a congestive heart failure is decreased compared to a healthy individual

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5
Q

antigen binding site of an antibody

A

has properties that are determined by the antibody’s tertiary structure

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6
Q

mRNA

A

complementary to DNA

5’ - 3’

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7
Q

alkyl halides in presence of ethoxide ion…

A

forms alkenes

no carbons added or removed

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8
Q

retrograde neurtransmitter

A

diffuses to nearby neurons

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9
Q

sexual arousal

A

parasympatheti nervous system

stimulates vagus nerve

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10
Q

analgesi drugs

A

releive pain at the level of the thymus

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11
Q

peripheral nerves

A

do not reconnect to other body parts

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12
Q

aromatic

A

4n+2

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13
Q

osteoblasts

A

deposit calciums in bones

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14
Q

osteoclasts

A

exist in bones but not generally found in the circulation

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15
Q

glycolysis = ?? ATP

A

2

16
Q

OH vs. double bond O

A

OH is more polar

17
Q

gas chromatography Rf

A

product interacts more strongly with silica (more polar) than the starting material so product has a lower Rf than the starting material

18
Q

Alcohol reactivities

A

tertiary alcohols react much more quickly with HCL than do other types of alcohols

19
Q

Grignard reagent

A

Ch3Br + Mg

20
Q

Hydroxyl absorpition

A

3400

21
Q

Carbonyl absorption

A

1700

22
Q

Colon

A

absorption of water

23
Q

Normally the immune system avoids attacking the tissues of its own body because…

A

it suppresses cells specifi to the body’s own antigens

24
Q

Ulcer penetrates walls of intestines, where do contents go?

A

Peritoneal cavity

membranes surroud this cavity which prevent further transport

25
Q

Lumen of intestine

A

generally where contents are…

26
Q

Antigens carried on…

A

surfaces of ells, not DNA, chromosomes, or RNA

27
Q

Places where blood pressure is the lowest

A

Veins, then capillaries (not heart, arteries, or arterioles)

28
Q

OH groups

A

3500

29
Q

What resembles the Golgi apparatus most?

A

Smooth ER

30
Q

leucocytes

A

gravitate towards an inflammation

31
Q

infections originate in…

A

epithelial cells

32
Q

cholesterol is a precursor to…

A

testosterone, uses steroid backbone of cholesterol

MCAT (6 decks)

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