1) the kidneys secrete adh in response to dehydration.
2) the absorptive state lasts about fifteen minutes after a meal.
3) unsaturated fatty acids have as much hydrogen as they can carry.
4) acidosis is a ph lower than 7, whereas alkalosis is a ph higher than 7.
5) melanin, hemoglobin, and carotene give color to the skin.
6) the ventricles are almost empty at the end of ventricular diastole.
7) all proteins made by the ribosomes are exported from a cell for use elsewhere in the
body.
8) desmosomes form channels that allow each cardiocyte to electrically stimulate its
neighbors.
9) the antigenicity of a molecule is due to specific regions of it called haptens.
10) medial and lateral condyles of the femur are involved in the hip joint.
11) arteries are sometimes called the __________ vessels of the cardiovascular system
because they have strong-resilient tissue structure.
a. resistance
b. capacitance
c. hydrodynamic
d. compliance
e. fenestrated
12) what is the basic distinction between an alveolar duct and an alveolar atrium?
a. their shape
b. their size
c. their function
d. their epithelial type
e. the presence or absence of cilia
13) __________ is a hormone, whereas __________ is an enzyme.
a. enterokinase; pepsin
b. gastrin; secretin
c. gastrin; cholecystokinin (cck)
d. gastric lipase; histamine
e. secretin; pepsin
14) even though all action potentials are the same, the brain can differentiate a variety
of stimuli by source and intensity. the mechanism by which the nervous system
converts these action potentials into meaningful information is called neural
__________.
a. recruitment
b. pooling
c. integration
d. facilitation
e. coding
15) if the cerebrum was no longer able to communicate with the midbrain, what type of
tract would you suspect has been damaged?
a. projection
b. association
c. commisural
d. ascending
16) the transfer of phosphate from cp to adp is catalyzed by __________.
a. myokinase
b. creatinine
c. camp
d. creatine kinase
e. atp
17) the only lymphatic organ(s) with afferent lymphatic vessels is(are) the __________.
a. lymph nodes
b. thymus
c. spleen
d. red bone marrow
e. tonsils
18) which vitamin deficiency is the most common worldwide?
a. vitamin a
b. vitamin b6 (pyridoxine)
c. vitamin c
d. vitamin d
e. vitamin e
19) __________ account for 98.5% of the body’s weight.
a.carbon, oxygen, hydrogen, sodium, potassium, and chlorine
b.carbon, oxygen, iron, sodium, potassium, and chlorine
c.carbon, nitrogen, hydrogen, sodium, potassium, and chlorine
d.carbon, oxygen, hydrogen, nitrogen, sodium, and potassium
e.carbon, oxygen, hydrogen, nitrogen, calcium, and phosphorus
20) atrial depolarization causes the _________.
a. p wave
b. qrs complex
c. t wave
d. first heart sound
e. quiescent period
21) a traveling wave of excitation is known as a(n) __________.
a. local potential
b. graded potential
c. action potential
d. nerve signal
e. depolarizing signal
22) the swallowing center is located in the __________.
a. mouth
b. oropharynx
c. esophagus
d. medulla oblongata
e. enteric nervous system
23) which of the following is the template for transcription?
a. the molecule that carries codons
b. the molecule that carries anticodons
c. the molecule that carries base triplets
d. the molecule that carries amino acids
e. the molecule that carries trna
24) a(n) __________ is a group of atoms that determines many of the properties of an
organic molecule.
a.carboxyl group
b.functional group
c.hydroxyl group
d.amino group
e.phosphate group