What determines how a regulatory molecule influences its target cell?
A. polarity and solubility
B. solubility and size
C. size and polarity
D. polarity, solubility, and size
Blood clotting requires
A.vitamin C.
B.vitamin D.
C.vitamin K.
D.vitamin E.
Nidation is the process of the blastocyst implanting itself into the thick
A.myometrium.
B.fallopian tubes.
C.endometrium.
D.epimetrium.
Which of the following is one of the phases of swallowing?
A.pharyngeal
B.peristalsis
C.reflux
D.segmentation
The primary structure of proteins is/are
A.the linear arrangement of amino acids in the molecule.
B.alpha helix coils and beta-pleated sheet folds of a protein strand.
C.due to the interaction between protein subunits.
D.stabilized when a protein is denatured.
Which of the following is NOT a component of respiration?
A.gas exchange
B.oxygen utilization
C.speech
D.ventilation
______ synapses occur between axons of presynaptic cells and dendrites of postynaptic
cells.
A. Axodendritic
B. Axosomatic
C. Myoneural
D. Axoaxonic
A reserve of high energy phosphate is stored in muscle as
A.phosphocreatine.
B.adenosine triphosphate.
C.glucose 6-phosphate.
D.creatine kinase.
Accumulation of lactic acid contributes to
A. decreased brain function.
B. oxygen debt.
C. glycogen synthesis.
D. decreased liver gluconeogenesis.
A record of the electrical currents of the cerebral cortex is a/an
A.computed tomograph.
B.electroencephalogram.
C.magnetic resonance image.
D.positron-emission tomograph.
Damage to the autonomic motor nerves would probably result in
A.no change in muscle tone.
B.muscle atrophy.
C.flaccid paralysis.
D.increased skeletal muscle contraction.
Which of the following does NOT occur during the cross bridge cycle?
A. a second ATP binding causes cross bridges to release.
B. ADP is released at the end of the power stroke.
C. energized myosin heads bind troponin.
D. ATP hydrolysis allows for cross bridge formation.
Type II diabetes mellitus
A.is characterized by destruction of the pancreatic alpha cells.
B.is characterized by destruction of the pancreatic beta cells.
C.usually occurs in children.
D.is the most common form of diabetes.
Action potentials would be conducted most rapidly by
A. a 10 mm diameter myelinated axon.
B. a 10 mm diameter unmyelinated axon.
C. a 40 mm diameter myelinated axon.
D. a 40 mm diameter unmyelinated axon.
An increase in blood volume in the left atrium will ______ ADH secretion.
A.stimulate
B.inhibit
C.have no effect on
The sensitivity of the uterus to oxytocin is increased by
A.prostaglandin.
B.progesterone.
C.testosterone.
D.estrogen.
Molecules included with immunizations that boost immune response by increasing
antigen-presenting ability are called
A.clones.
B.FAS ligands.
C.interleukin-1.
D.adjuvants.
Which capillaries have wide intercellular pores that serve as a basement membrane over
the capillary endothelium for increased filtration?
A.true
B.continuous
C.fenestrated
D.discontinuous
Destruction of which pancreatic cells would cause hyperglycemia?
A.alpha cells
B.beta cells
C.delta cells
D.None of the choices are correct.
Secretion of enterogasterone is stimulated by _____ in the chyme.
A.protein
B.acid
C.glucose
D.fats
The correct order of the four phases of sexual response in both sexes would be
A. excitation, plateau, orgasm, resolution.
B. plateau, excitation, orgasm, resolution.
C. orgasm, excitation, resolution, plateau.
D. resolution, plateau, excitation, orgasm.
Individuals suffering from cystic fibrosis have defective ____________ ion channels.
A. sodium
B. potassium
C. calcium
D. chloride
Which is NOT a symptom of preeclampsia?
A.hypertension
B.proteinuria
C.edema
D.increased vasodilation
The minimum plasma concentration of a substance that results in the excretion of that
substance in the urine is the
A.transport maximum.
B.GFR.
C.renal plasma clearance.
D.renal plasma threshold.
Regarding acids and bases,
A.acids will increase the pH of a solution.
B.bases will decrease the pH of a solution.
C.acids will accept hydrogen ions in a solution.
D.bases will accept hydrogen ions in a solution.
Which of the following is NOT part of the vestibular apparatus of the inner ear?
A.cochlea
B.utricle
C.semicircular canals
D.saccule
In secondary active transport, if the other substance is moved in the same direction as
Na+, it is called
A. cotransport.
B. symport.
C. antiport.
D. cotransport AND symport.
Adrenocorticotropic hormone is synthesized in cells that had been part of the
A. the pars distalis.
B. the pars tuberalis.
C. the pars intermedia.
D. the neurohypophysis.
Regulation of a metabolic pathway by the final product of the pathway is termed
A.allosteric inhibition.
B.end-product inhibition.
C.negative feedback.
D.Both end-product inhibition and negative feedback are correct.
Anaerobic respiration metabolism regenerates the ______________ required for
glycolysis.
A.NAD
B.FAD
C.ATP
D.GTP
Which of the following processes is NOT a liver function?
A.lipogenesis
B.gluconeogenesis
C.hydrolysis of sucrose
D.glycogenolysis