study questions page 1

Question 1

The _____________ is the site of aerobic ATP production in the cell.

Answer 1

mitochondria

Question 2

Bile secretion is entirely under ___________ regulation

Answer 2

ENDOCRINE

Question 3

The ___________________________ theory describes how the thick and think filaments interact during the muscle contraction cycle

Answer 3

SLIDING FILAMENT

Question 4

While there are 4 methods of heat transfer, ______ is the only method that cannot gain heat.

Answer 4

evaporation

Question 5

Ion channels are temperature _____

Answer 5

dependent.

Question 6

The sarcomere ______ because there is a greater degree of overlap between the thick and thin filaments.

Answer 6

shortens

Question 7

_____ cells produce the primary saliva that is modified as it passes through the duct cells.

Answer 7

Acinar

Question 8

The membrane protein that functions by reversible binding with a molecule to move it across the membrane is called a _____

Answer 8

transporter.

Question 9

An ______ is an electrical signal generated by excitable cells due to voltage-dependent changes in membrane permeabilities.

Answer 9

action potential

Question 10

cAMP, cGMP, IP3, Ca2+, and diacylglycerol are all examples of ______

Answer 10

secondary messengers.

Question 11

________ is the transfer of heat between neighboring molecules due to a temperature gradient, involving contact between objects.

Answer 11

Conduction

Question 12

A _______ is needed to transport solutes or water through cell membranes without binding.

Answer 12

channel

Question 13

The _________ rate is a measurement of metabolic rate under standardized conditions to allow for comparison.

Answer 13

basal metabolic

Question 14

______ is the breakdown of food molecules by enzyme action.

Answer 14

Digestion

Question 15

The salivary glands, pancreas, and liver are all examples of _________ in an animal’s gastrointestinal tract

Answer 15

accessory organs

Question 16

Water moves from areas of _____ water concentration to areas of _____ water concentration, and from ____ osmotic pressure to ____ osmotic pressure.

Answer 16

high

low

low

high

Question 17

The _________ is a physical barrier surrounding a cell that is vital for transport and signaling function and is formed from a phospholipid bilayer.

Answer 17

plasma membrane

Question 18

The ______ cells in the stomach are responsible for the synthesis and release of HCl into the stomach lumen.

Answer 18

Parietal

Question 19

Villi in the stomach help to increase absorption primarily by increasing _____

Answer 19

Surface Area.

Question 20

A(n) ______ synapse uses ligand-gated channel on the post synaptic cell.

Answer 20

Ionotropic

Question 21

A (An)_____ environment is the environment most cells are exposed to

Answer 21

internal

Question 22

______ is the range of environmental temperatures where animals can maintain core
body temperature without an increase in metabolic rate

Answer 22

Thermoneutral zone

Question 23

A series of tubes that are connected to each other and eventually provide urine a way to exit into the environment is called a ______

Answer 23

Nephron

Question 24

Fatty acids are assembled into ______ units in the intestinal wall before being released into the lymph system for absorption

Answer 24

chilomichron

Question 25

Ligand-gated channels cause _____ changes in membrane potential, which is a proportional change to the amount of neurotransmitters bound.

Answer 25

graded

Question 26

Type II B/X muscles have _____ mitochondria than Type I.

Answer 26

less

Question 27

______ is a type of heat transfer that results only in the loss of heat.

Answer 27

Evaporation

Question 28

______ cells wrap around the axon in the PNS and form the myelin sheath.

Answer 28

Schwann