Physiology I - Exam 1 - Practice Questions

Question 1

Answer 1

A channel protein

Question 2

Answer 2

D. Rough endoplasmic reticulum

Question 3

Answer 3

A. Clathrin

Question 4

Answer 4

C. Breakdown of glucose to pyruvic acid

Question 5

Answer 5

C. Active transport

Question 6

Answer 6

A. Sodium

Question 7

Answer 7

B. Primary active transport

Question 8

Answer 8

C. Secondary active transport

Question 9

Answer 9

C. Secondary active transport

Question 10

Answer 10

D. Facilitated diffusion

Question 11

Answer 11

A. Sodium channels and sodium ATPase pumps

Question 12

Answer 12

C. Sodium ions

Question 13

Answer 13

C. Cells are mononucleated.

Question 14

Answer 14

D. Stage 4.

Question 15

Answer 15

D. Secondary active transport involving an antiporter.

Question 16

Answer 16

C. Closure of AV valve.

Question 17

Answer 17

A. It occurs when the left ventricular pressure is above 80 mm Hg.

Question 18

Answer 18

C. Atrial contraction

Question 19

Answer 19

A. The greater the stretching of cardiac muscle, the greater the force of contraction.

Question 20

Answer 20

B. Increasing EDV.

Question 21

Answer 21

A. Heart will become dilated.

Question 22

Answer 22

D. P

Question 23

Answer 23

B. 80ml

Question 24

Answer 24

B. 60%

Question 25

Answer 25

A. at the beginning of systole

Question 26

Answer 26

C. Neostigmine inactivates acetylcholinesterase, allowing more acetylcholine molecules to bind to receptors and create stronger end plate potentials.

Question 27

Answer 27

C. Dense bars

Question 28

Answer 28

B. Two.

Question 29

Answer 29

C. An end-plate potential is created on the muscle fiber.

Question 30

Answer 30

D. Golgi

Question 31

Answer 31

B. Neostigmine

Question 32

Answer 32

C. The triceps muscle while lowering the body to the floor during a push-up.

Question 33

Answer 33

C. Their flight muscle fibers would have small concentrations of ATPase.

Question 34

Answer 34

C. Release of the myosin head from the actin binding site

Question 35

Answer 35

(C) Myofibril

Question 36

Answer 36

(A) A band

Question 37

Answer 37

(C) I band

Question 38

Answer 38

(C) T tubules

Question 39

Answer 39

(A) Sarcoplasmic reticulum

Question 40

Answer 40

(B) Calcium Ion Influx into Axon Terminal

Question 41

Answer 41

(C) 100

Question 42

Answer 42

(A) Calsequestrin

Question 43

Answer 43

(D) They are more fatigable than slow twitch fibers.

Question 44

Answer 44

(C) The triceps muscle while lowering the body to the floor during a push-up.

Question 45

Answer 45

C. Large diameter, myelinated

Question 46

Answer 46

D. Axon

Question 47

Answer 47

B. Non-gated sodium

Question 48

Answer 48

D. -90 mV