DAT bio-302-345

Question 1

pheromones

Answer 1

can act as sex attractants, mark territories, & accelerate reproductive maturity in a # of species (ex. formic acid by ants, in feces to mark territories)

Question 2

a pH gradient is seen in what part of photosynthesis/ glycolysis

Answer 2

ETC

Question 3

function of MHC

Answer 3

major histocompatibility complex distinguishes self- from non self ; responsible for stimulating rejection against the donated organ

Question 4

pyrimidines and characteristics

Answer 4

cytosine, uracil, thymine, - contain one ring

Question 5

purines and characteristics

Answer 5

adenine, guanine - contain two rings

Question 6

technique used widely to elucidate 3-D structure of a macromolecule; to determine 3º structure

Answer 6

X-ray crystallography

Question 7

exocytosis

Answer 7

it is in the presynaptic membrane where we see synaptic vesicles discharge their contents

Question 8

neurotransmitter that plays a role in mood swings

Answer 8

seratonin

Question 9

what does the blood-brain barrier allow passage?

Answer 9

permeable to CO2, O2, glucose, and general anesthetics

Question 10

whats produced in a fatigue muslce

Answer 10

lactate

Question 11

under aerobic conditions, most of the pyruvate is oxidized by??

Answer 11

TCA cycle

Question 12

voice box

Answer 12

larynx

Question 13

interferons

Answer 13

group of small proteins made by most body cells following a viral attack ; class of gycoproteins called cytokines

Question 14

algae

Answer 14

bacteria (protist)

Question 15

blue-green algae

Answer 15

monera

Question 16

level of greatest biomass; least biomass

Answer 16

plants; 3º consumers

Question 17

procedure most useful to study intracellular location of proteins; uses radioactive label on a protein to detect whats happening to molecules in cells!

Answer 17

pulse- chase experiment

Question 18

ubiquinone

Answer 18

coenzyme Q lipid soluble electron carrier seen in the ETC

Question 19

amphoteric

Answer 19

act as acid or base

Question 20

whats special about glycine

Answer 20

is the only optically inactive amino acid since it has no chiral carbons

Question 21

after ovulation the ovarian follicle creates

Answer 21

corpus luteum

Question 22

corpus luteum

Answer 22

will produce progesterone and estrogen that will help blood vessel growth

Question 23

whats derived from cholesterol

Answer 23

steroid hormones: estrogen, progesterone, cortisone, cortisol

Question 24

where are epinephrine a thyroxin derived from

Answer 24

amino acid

Question 25

true about ferns

Answer 25

vascular plants with large, feathery leaves, large leaves with many veins, fern spores develop on the sporophyte in sporangia; sori, or clusters of sporangia develop on the lower surface of the leaf

Question 26

reverse transcriptase is found in

Answer 26

Retrovirus

Question 27

mitosis makes up what % of cell cycle

Answer 27

10%

Question 28

dioecious species

Answer 28

cannot self-fertilize; spec ices in which each individual is distinctly male or female (mammals and most reptiles)

Question 29

human population

Answer 29

K-related species; low reproductive rates, constant in size

Question 30

bacteria population

Answer 30

R-related species ; fast in growth , numerous offspring, fast maturation

Question 31

haploid stage of life cycle dominates in

Answer 31

fungi

Question 32

agonistic behavior can result it

Answer 32

two animals conflict over mate or food

Question 33

casparian strip

Answer 33

waxy band in plants that aid in water control

Question 34

main solute transported by the phloem

Answer 34

sucrose

Question 35

nucleic acid backbone consist of

Answer 35

sugar and phosphate units

Question 36

myoglobin structure

Answer 36

single chain, no quaternary structure

Question 37

in glomerular filtrate, whats completely reabsorbed

Answer 37

K+