BIO202 FINAL

Question 1

Which of the following statements ARE true about active transport? (select all that apply)

Answer 1

the process requires ATP , the process requires a membrane protein , molecules move against the gradient -3 ONLY

Question 2

Which of the following statements ARE true about facilitated diffusion?(select all that apply)

Answer 2

molecules move from high concentration to low , process requires a membrane protein - ONLY 2

Question 3

Gasseous molecules such as oxygen and carbon dioxide are neutrally charged and very small which allows them to be transported across membranes by…

Answer 3

simple diffusion

Question 4

Water molecules travel through cell membranes from areas of —–LOW—————- solute concentration to areas of —–high—- solute concentration in a process called ——–OSMOSIS

Answer 4

LOW, HIGH, OSMOSIS

Question 5

What role (function) does calcium have within a muscle fiber?

Answer 5

trigger contraction by causing the formation of cross bridges

Question 6

Which of the following are regulatory proteins that allow a muscle fiber to contract when calcium is present? (select all that apply)

Answer 6

tropomyosin , TROPONIN

Question 7

An autorhythmic muscle type containing mononucleated and striated muscle fibers.

Answer 7

cardiac muscle

Question 8

This type of muscle is found in the lining of the stomach as well as the walls of arteries.

Answer 8

SMOOTH

Question 9

A muscle type that functions to transport substances through hollow viscera (organs).

Answer 9

SMOOTH

Question 10

Voluntary, striated and multinucleated muscle.

Answer 10

SKELETAL

Question 11

During this phase of an action potential, potassium ions exit the cell through voltage gated potassium channels.

Answer 11

REPOLARIZATION

Question 12

A resting muscle fiber or neuron has an internal charge that is——-NEGATIVE——–compared to the extracellular environment. This resting membrane charge is maintained by the ——-SODIUM/POTASSIUM PUMP

Answer 12

NEGATIVE, SODIUM, POTASSIUM PUMP

Question 13

When a muscle fiber is at resting membrane potential there is a(an)——lower—— concentration of sodium inside the cell compared to outside the cell and a(an) ———higher—— concentration of potassium inside the cell compared to outside.

Answer 13

LOWER, HIGHER

Question 14

Match each membrane type to the appropriate description or example.
Correct!
A membrane that traps pathogens
mucous membrane
Correct!
The lining of the digestive organs
mucous membrane
Correct!
The skin
cutaneous membrane
Correct!
A dry membrane
cutaneous membrane
Correct!
A membrane that reduces friction
serous membrane
Correct!
The surface of the lungs
serous membrane

Question 15

The bridge of the nose is ___________ to the eyes.

Answer 15

MEDIAL

Question 16

The bones of the skeleton are ____________ to the skeletal muscles.

Answer 16

DEEP

Question 17

The heart is _____________ to the sternum.

Answer 17

POSTERIOR

Question 18

Match each description to the appropriate regional term.
Correct!
arm
brachial
Correct!
thigh
femoral
Correct!
kidney
renal
Correct!
armpit
axillary

Question 19

endocrine