Phys comp 2

Question 1

In each normal cell, there are ___ sex chromosomes and ____ autosomes

Answer 1

1 - 22

Question 2

blood vessels are given rise to, by the _____germ layer

Answer 2

mesodermal

Question 3

following the depolarization [phase, a cell is repolarized partly because

Answer 3

potassium ions exit the cell at a very rapid rate

Question 4

if a normal biological cell is placed in a hypertonic solution, this cell is expected to

Answer 4

lose fluid to the solution

Question 5

collagen, elastin, and reticular fibers are all

Answer 5

made of protein

Question 6

EPSP’s can result from the passive influx of ___ ions into the cell

Answer 6

sodium

Question 7

citric acid cycle

Answer 7

occurs in the mitochondria

Question 8

which of the following ions are negatively charged

Answer 8

chloride

Question 9

if a patien’s ventromedial hypothalamus (VMH) is destroyed, he/she will???

Answer 9

be unable to normally terminate eating patterns

Question 10

action potentials

Answer 10

are all or none

Question 11

sensory auditory information travels mainly to ____lobe of the brain

Answer 11

temporal

Question 12

a motor unit is

Answer 12

a motor neuron plus all the skeletal muscle fibers it innervates

Question 13

at the second synapse of the parasympathetic nervous system ____is released?

Answer 13

acetylcholine

Question 14

triglycerides are composed of

Answer 14

glycerol and three fatty acids

Question 15

DNA stands for

Answer 15

deoxyribonucleic acid

Question 16

carbon is capable of making ____ chemical bonds, whereas oxygen usually makes___

Answer 16

4 - 2

Question 17

the main relay center for many cortical inputs is the

Answer 17

thalamus

Question 18

mRNA is edited in the cell’s

Answer 18

cytoplasm (verify)

Question 19

formation of a triglyceride is a/an reaction

Answer 19

anabolic

Question 20

_____is a carrier free process

Answer 20

diffusion

Question 21

the storage form of glucose is

Answer 21

glycogen

Question 22

EPSP’s are similar to IPSP’s in that both

Answer 22

can undergo summation

Question 23

which cells of the body can store the most glycogen

Answer 23

liver cells

Question 24

___ and ____ are the two most important ions in action potential production and propagation

Answer 24

potassium and sodium

Question 25

a normal biological cell that is placed in an isotonic solution will usually ???

Answer 25

not change in size

Question 26

simple diffusion

Answer 26

speeds up when temperature is increased

Question 27

the parasympathetic nervous system contains ____ pregangiionic and ____post ganglionic fibers

Answer 27

long-short