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Destruction of the pancreatic beta-cells would result in
A.Cushing's disease.
B.Grave's disease.
C.diabetes mellitus.
D.diabetes insipidus.
The renal plasma clearance of a substance that is filtered but not reabsorbed or secreted
is ___ the GFR.
A.greater than
B.less than
C.equal to
Mary has type AB blood. Which type of antibodies are present in her plasma?
A.anti-A
B.anti-B
C.anti-A and anti-B
D.Neither anti-A nor anti-B
The substrate binds to the ______________ of the enzyme.
A. allosteric site
B. acidic site
C. neutral site
D. active site
The outermost layer of the eyeball is the
A.choroid.
B.retina.
C.sclera.
D.lens.
The opposing forces that affect fluid movements across a capillary are known as
A. oncotic pressures.
B. starling forces.
C. colloid osmotic pressures.
D. None apply.
The Nobel Prize was awarded to __________, __________, and ____________ for
determining the structure of DNA.
A. Watson, Krebs, Buck
B. Crick, Wilkins, Watson
C. Buck, Axel, Pavlov
D. Krebs, Sperry, Huxley
A protein that is combined with another type of molecule like a carbohydrate is
A.conjugated.
B.denatured.
C.hydrolyzed.
D.complemented.
Inhibiting proteins C2-C4 would block the activation of
A.interferon.
B.complement.
C.specific immunity.
D.antibodies.
The preferred energy source for resting skeletal muscle is (are)
A.glucose.
B.glycogen.
C.fatty acids.
D.protein.
Muscarinic ACh receptors are found in all of the following locations EXCEPT
A. skeletal muscle
B. smooth muscle
C. cardiac muscle
D. glands
Ablation of the ___________ in the midbrain would impair the ability to respond to
sounds.
A. superior colliculi
B. medial colliculi
C. red nucleus
D. inferior colliculi
What condition can occur if blood flow to the skin becomes severely constricted in
extreme cold?
A. cold sweat
B. heat deprivation
C. frostbite
D. None apply
Except for the sense of __________, all sensory information is relayed through the
thalamus.
A. taste
B. vision
C. balance
D. smell
The progressive fusion of the acrosomal membrane with the plasma membrane of the
sperm is called the
A.spermatogenesis.
B.acrosomal reaction.
C.spermiogenesis.
D.capacitation.
Which of the following is NOT a cutaneous receptor?
A.muscle spindle
B.touch receptor
C.heat receptor
D.pain receptor
Ventilation would be decreased by decreasing the activity of
A.type II alveolar cells.
B.type I alveolar cells.
C.alveolar macrophages.
D.None of the choices are correct.
Thyroid hormone receptor proteins are found
A. on the plasma membrane.
B. in the cytoplasm.
C. in the nucleus.
D. All apply.
The least amount of energy that produces adequate stimulation of a receptor is the
A.sensory adaptation.
B.generator potential.
C.all-or-none law.
D.law of specific nerve energies.
Random uncontrolled contractions of different muscle groups as a result of damage to
the basal nuclei is a symptom of upper motor neuron damage called
A.intention tremor.
B.Babinski's reflex.
C.chorea.
D.resting tremor.
The process by which action potentials cause muscle contraction is
A. the sliding filament theory.
B. excitation-contraction coupling.
C. the electromechanical release mechanism.
D. Both excitation-contraction coupling and the electromechanical release mechanism.
Neuroglial cells are supporting cells present in the
A.brain.
B.spinal cord.
C.effector organs.
D.Both the brain and spinal cord.
Each fascicle of a muscle is surrounded by the
A.perimysium.
B.epimysium.
C.endomysium.
D.sarcolemma.
In which of the following areas does carbohydrate digestion occur?
A.mouth and stomach
B.duodenum and pancreas
C.stomach and pancreas
D.mouth and duodenum
Steroid hormone receptors form a ____ on their DNA half-sites.
A.homodimer
B.autodimer
C.pseudodimer
D.heterodimer
The __________ is an "incomplete endocrine gland" because it cannot produce
estrogen and progesterone without the aid of precursors supplied to it by both the
mother and the fetus.
A.ovary
B.uterus
C.placenta
D.uterine tube
The base that is NOT found in RNA is
A.thymine.
B.guanine.
C.cytosine.
D.uracil.
The majority of sensory information is relayed to the cerebrum by the
A. pons.
B. thalamus.
C. hypothalamus.
D. medulla oblongata.
Blood flow is greatest at the _____ of the lungs and perfusion is greatest at the _____ of
the lungs.
A.apex; apex
B.apex; base
C.base; base
D.base; apex
The midbrain forms from the
A.telencephalon.
B.mesencephalon.
C.myelencephalon.
D.diencephalon.
The placental hormone with actions similar to both growth hormone and prolactin is
A.chorionic somatomammotropin.
B.chorionic gonadotropin.
C.placental prolactin.
D.placental lactogen.
Where are GLUT carriers located in an unstimulated muscle?
A. in the plasma membrane facing the external environment
B. in the plasma membrane facing the internal environment
C. within cytoplasmic vesicles
D. There are no GLUT carriers present.
A solution of a pH above 7 is called ____________.
A.acidic
B.neutral
C.basic
Hydrophobic molecules usually enter a cell via __________.
A. osmosis
B. active transport
C. diffusion
D. protein channels
What is the function of antidiuretic hormone (ADH)?
A.stimulates loss of water by the kidneys
B.causes large urine volume
C.causes a darkening of the skin
D.stimulates retention of water by the kidneys
