Quiz 4 questions

Question 1

The metabolic rate of a fasting, non-stressed ectotherm at rest at a specific temperature is called:
SMR
BMR
STP
ATP
ECG

Answer 1

SMR

Question 2

Vitamins are classified based on:
Whether they affect carbohydrate or protein
How much of them is required
The amount of energy they contain
Whether they are water soluble or fat soluble

Answer 2

Whether they are water soluble or fat soluble

Question 3

Pancreatic secretions contain:
Hormones
Enzymes
Bicarbonate
Hormones, enzymes, and bicarbonate
Hormones and bicarbonate

Answer 3

Hormones, enzymes, an bicarbonate

Question 4

If the atrioventricular node were surgically removed from the heart without disrupting signal transmission to the Purkinje fibers, what would happen?
No apparent effect on heart activity would be observed
Only the ventricles would contract
The heart rate would decrease
Only the atria would contract
Atria and ventricles would contract at approximately the same time

Answer 4

Atria and ventricles would contract at approximately the same time

Question 5

Fluid is forced out or systemic capillaries at the arteriolar end because:
The blood pressure is less than of the interstitial fluid
The osmotic pressure of the interstitial fluid is greater than that of the blood
The osmotic pressure of the interstitial fluid is greater than the blood pressure
The osmotic pressure of the blood is greater than the hydrostatic pressure of the interstitial fluid
The blood pressure is greater than the osmotic pressure of the blood

Answer 5

The blood pressure is greater than the osmotic pressure of the blood

Question 6

All gases exchanged between air and blood in mammals occurs across the walls of the:
Trachea
bronchi
Alveoli
Bronchioles
Apiglottis

Answer 6

Alveoli

Question 7

During inhalation:
Diaphragm and rib muscles relax
Diaphragm and rib muscles contract
The diaphragm contracts and rib muscles relax
The diaphragm relaxes and rib muscles contract

Answer 7

Diaphragm and rib muscles contract

Question 8

Allergies are the result of an exaggerated immune response. What triggers this response?
Allergens
Antibodies
Antidotes
Antihistamines
Helper T-cells

Answer 8

Allergens

Question 9

Which of the following would prevent allergic attacks?
Blocking the attachment of the IgE antibodies to the mast cells
Blocking the antigen determination of the IgM antibodies
Reducing the number of helper T-cells in the body
Reducing the number of cytotoxic cells
Increasing the initial exposure to the antigen

Answer 9

Blocking the attachment of the IgE antibodies to the mast cells

Question 10

_____ is the transfer of thermal energy between an object and an external fluid that is moving (e.g., water on air)
Conduction
Convection
Evaporation
Radiation
Sublimation

Answer 10

Convection

Question 11

A(n)_____ is an animal that has a relatrively variable body temperature, whereas a(n)_______ has a relatively stable body temperature.
endotherm; ectotherm
ectotherm; endotherm
homeotherm; poikilotherm
poikilotherm; homeotherm
ectotherm; poikilotherm

Answer 11

poikilotherm; homeotherm
(remember, you have a stable temperature at HOME)

Question 12

The source of trypsinogen and chymotrypsinogen (which are activated into trypsin and chymotrypsin in the duodenum) is the:
Liver
Gallbladder
Pancreas
Stomach
Small intestine

Answer 12

Pancreas

Question 13

All of the following are part of our antigen-specific defense mechanism (adaptive immune response) except:
Acute inflammation
Lymphocytes
Antibody production

Answer 13

Acute inflammation