Bio 1620 Final

Question 1

what is the correct order of food moving through the digestive tract?

Accepted Answer

rumen reticulum omasum abomasum

Question 2

when the stimulus is stronger the cell produces a higher frequency action potential than a weak

Accepted Answer

false, true

Question 3

sound energy is transferred from the tympanic membrane to the oval window

Accepted Answer

ossicles

Question 4

what is the function of the cortical reaction?

Accepted Answer

to prevent polyspermy

Question 5

what factors determine the direction of movement of ions acraoos the biological membrane

Accepted Answer

both membrane potential and concentration gradient

Question 6

where is the most acidic digestive environment?

Accepted Answer

stomach

Question 7

the cellular basis for learning and memory in the hippocampus does NOT involve changes in...

Accepted Answer

number of postsynaptic NMDA receptors

Question 8

........ Is an inflamitory immune system response to a nonpathogenic antigen

Accepted Answer

allergy

Question 9

protein that physically interferes with binding between actin and myosin at rest

Accepted Answer

tropomyosin

Question 10

main function of nucleus accumbens

Accepted Answer

reward

Question 11

hearing pitch is generally dependent on physical properties of which structure

Accepted Answer

basilar membrane

Question 12

which hormone decreses immediately following a meal?

Accepted Answer

ghrelin

Question 13

when cells extend themselves making the mass of cells narrower and longer is...

Accepted Answer

convergent extension

Question 14

main function of the amygdala

Accepted Answer

fear

Question 15

the more plants a animal eats the larger the...

Accepted Answer

cecum

Question 16

in a simple synapse, neurotransmitter chemicals are received by....

Accepted Answer

the postsynaptic membrane

Question 17

the left atrium receives freshly oxygenated blood.

Accepted Answer

true

Question 18

which source matches the organ with its embryonic source

Accepted Answer

kidney, mesoderm

Question 19

Which of the following is true concerning negative feedback pathways?

Accepted Answer

They lead to homeostasis

Question 20

which of the following is NOT in an OPEN circulatory system?

Accepted Answer

capillaries

Question 21

The immune tissue whose primary function is to remove dead red blood cells from circulation

Accepted Answer

Spleen

Question 22

what are antigens?

Accepted Answer

foreign molecules that trigger the generation of antibodies

Question 23

an autoimmune disease is...

Accepted Answer

immune systme makes antibodies against one's own cells

Question 24

in the diagram side A is .........to sice B and net movement of water will be.......

Accepted Answer

hypoosomatic; towar side B

Question 25

what animal doesn't have residual volume issues?

Accepted Answer

birds

Question 26

the disease of M.S. interrupts nervous signaling because the immune system attacks...

Accepted Answer

mylin sheath

Question 27

What type of cell produces and secretes antibodies?

Accepted Answer

plasma cells

Question 28

Lymph vessels play a key role in the adsorption of

Accepted Answer

fats

Question 29

fight or flight reaction include activation of the...

Accepted Answer

adrenal medulla, leading to more secretion of epinephrine

Question 30

animals with external fertilization are most likely to reproduce in which area?

Accepted Answer

shallow lake

Question 31

rods have greater sensetivity in dim light compared to cones

Accepted Answer

true

Question 32

H2O, 0xygen, FOOD, HEAT, and EXCRETION maintain the fundamental characteristics of life

Accepted Answer

false

Question 33

an injury to the temporal lobe will likely impari the function of...

Accepted Answer

sense of hearing

Question 34

what is the sequence of developmental milestones

Accepted Answer

cleavage, blastula, gastrula

Question 35

the equilibrium for k+ ions in a normal neuron is -92 mv and resting is -70 mv if K+ open...?

Accepted Answer

K+ ions move out of the cell and the cell hyperpolarizes

Question 36

correct order of the phases of human ovarian cycle that gives rise to an oocyte

Accepted Answer

follicular, ovulation, luteal

Question 37

which of the following is considered a suspension feeder?

Accepted Answer

whale

Question 38

what is the extraembryonic membrane's function?

Accepted Answer

amnion, nutrient storage

Question 39

where does the incresed Ca+ come from during a muscle contraction?

Accepted Answer

from the sarcoplasmic reticulum via Ca+ release channels

Question 40

which sense(s) uses mechanoreceptors to detect stimuli?

Accepted Answer

hearing and touch

Question 41

which cell type is part of innate immunity?

Accepted Answer

Natural Killers

Question 42

after the loop of henle where does the filtrate go next?

Accepted Answer

distal tubule

Question 43

fertilzation occurs in the oviduct

Accepted Answer

true

Question 44

in an action potential which of the following events happens first?

Accepted Answer

voltage gated NA+ channels open

Question 45

in response to stress the adrenal gland causes creation of glucose through wich steroid hormone

Accepted Answer

cortisol

Question 46

fight or flight reaction sinvolve activation of the .... nervous system

Accepted Answer

sympathetic

Question 47

in phototransduction what is directly responsible for the "dark current"

Accepted Answer

Na+ ions moving in through the cGMP-gated channels

Question 48

what is the most common cell type found in the central nervous system

Accepted Answer

gilial cell

Question 49

for the typical neuron likt that shown in what zone would you expect to find the myelin sheath?

Accepted Answer

D

Question 50

by definition an osmoconformer always lives in fresh water

Accepted Answer

false

Bio 1620 Final

Questions 50

Bio 1620 Final

Questions 50