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Which of the following would be found in normal somatic cells of women but not men?
A.an X chromosome
B.a Y chromosome
C.a Barr body
D.22 pairs of autosomal chromosomes
What chemical is released by neutrophils that produces pus at the site of an infection?
A.cytokines
B.heparin
C.histamine
D.proteases
To decrease hunger, MSH must bind to its receptor, ______ in the arcuate nucleus of
the hypothalamus.
A.neuropeptide Y
B.agouti-related protein
C.melanocortin 4
D.PYY
Which of the following is NOT a fat-soluble vitamin?
A.vitamin E
B.vitamin A
C.vitamin C
D.vitamin D
Water makes up _____ of the total body weight of an average adult.
A.50-60%
B.55-65%
C.60-70%
D.65-75%
What commonly ingested substances are absorbed through the stomach wall?
A.water and alcohol
B.antacid and water
C.alcohol and aspirin
D.penicillin and aspirin
Reactive hyperemia is
A. increased blood flow due to increased metabolism.
B. increased blood flow after removal of constriction due to accumulated metabolic
products.
C. increased blood flow due to sepsis.
D. All apply.
Which of the following is NOT a role of estriol in parturition?
A.produces more receptors for oxytocin
B.produces the hormone relaxin
C.produces more receptors for prostaglandins
D.produces more gap junctions between myometrial cells
Nonessential amino acids include
A. arginine.
B. lysine.
C. methionine.
D. tryptophan.
Which of the following is NOT a nonenzymatic protection against oxidative stress?
A.hydrogen peroxide
B.glutathione
C.ascorbic acid
D.alpha-tocopherol
What is it called when a mature follicle ruptures and ejects the oocyte into the uterine
tube?
A.gestation
B.menstruation
C.ovulation
D.fertilization
In regards to the relationship between resting muscle fiber length and tension generated,
A. maximal tension is generated when the thick and thin filaments slightly overlap.
B. maximal tension is generated when the thick and thin filaments do not overlap.
C. maximal tension is generated when the thick and thin filaments greatly overlap.
D. the amount of overlap is unimportant in determining maximal tension.
IGF-1 and IGF-2 are known as __________ because they mediate the actions of growth
hormone.
A.somatostatins
B.somatomedins
C.somatotropins
D.None of the choices are correct.
_________ AV node block occurs when the rate of impulse conduction through the AV
node exceeds 0.20 second.
A.First-degree
B.Second-degree
C.Third-degree
D.Fourth-degree
A cell lacking a Golgi apparatus would not be able to add _____________ to proteins.
A. lipids
B. proteins
C. carbohydrates
D. acids
The bending of light as it passes through different media is called
A.accommodation.
B.visual acuity.
C.refraction.
D.astigmatism.
Enhancing the excitability of a synapse so that transmission is favored along certain
pathways is called
A. long-term potentiation.
B. synaptic plasticity.
C. excitotoxicity.
D. summation.
What substance can act as a retrograde messenger to increase LPT by increasing the
release of glutamate from presynaptic terminals?
A. Mg2+
B. Ca2+
C. NO
D. ACh
The mucosa of the esophagus is
A.stratified cuboidal epithelium.
B.pseudostratified columnar epithelium.
C.simple columnar epithelium.
D.nonkeratinized stratified squamous epithelium.
During the local inflammatory response, a lack of mast cells would result in
A.decreased antibody secretion.
B.interaction of antibodies with the pathogen.
C.activation of complement.
D.decreased capillary permeability.
Colostrum is high in
A.IgA.
B.IgD.
C.IgE.
D.IgG.
The blastocyst consists of the
A.blastocyst and amnion.
B.morula and placenta.
C.chorion and inner cell mass.
D.embryo and chorion.
In order to maintain proper health, total dietary fat intake should not exceed
_______________ of total dietary energy intake.
A.10%
B.20%
C.30%
D.40%
A ______________ is the amount of heat required to raise the temperature of one cubic
centimeter of water one degree on the Celsius scale.
A.specific heat
B.meter
C.boiling point
D.calorie
Which of the following is NOT true of outer hair cells of the organ of Corti?
A.innervated by motor neurons
B.will shorten when depolarized and lengthen when hyperpolarized
C.occur in multiple rows in each turn of the cochlear duct
D.relay sound information by way of the vestibulocochlear nerve
An electroencephalogram obtained from an adult who is thinking would probably
display
A.many alpha waves.
B.many beta waves.
C.many delta waves.
D.many theta waves.
_________ lipolysis would result from inadequate cortisol secretion by the adrenal
cortex.
A.Increased
B.Decreased
C.No change in
The ________________________ is a membrane ion channel on sensory neurons that
responds to cold in the 8 to 28C range by producing a depolarization.
A.capsaicin receptor
B.two-point threshold
C.cold or menthol receptor
D.pacinian corpuscle
Serotonin is synthesized from the amino acid
A. alanine.
B. glycine.
C. tryptophan.
D. serine.
Which of the following is NOT true of cyclic AMP?
A. It is found on the outside of a plasma membrane.
B. It is a second messenger for polar regulatory molecules.
C. It is made from ATP.
D. It activates enzymes inside a cell to produce the desired effect.
What type of G-proteins are associated with the visual cycle?
A. transducins
B. gustducins
C. roducins
D. None apply.
