Unlock document.
This document is partially blurred.
Unlock all pages and 1 million more documents.
Get Access
Receptor-mediated endocytosis would allow cells to selectively remove molecules from
the extracellular fluid.
Closure of the atrioventricular valves occurs at the end of diastole/beginning of systole.
The same prostaglandin may produce different effects in different tissues.
The secretion of GnRH, FSH, and LH are pulsatile instead of continuous.
A reflex arc requires intervention from the brain for a response.
Tissues receive more O2 when the pH is lowered.
As the tubular filtrate moves through the descending limb of the loop of Henle, the
osmolality of the filtrate increases.
Benign tumors grow rapidly and can be dispersed throughout the body.
All body cells have motile cilia with a "9+2" structure.
Testosterone levels in the male embryo and fetus are very high throughout the prenatal
period.
The extracellular matrix is made up of collagen, elastin, and a gel-like ground
substance.
Summation occurs in muscle cells when stimulus frequency increases to produce a
greater force contraction.
Damage to an autonomic nerve makes the effector more sensitive to stimulation.
The presence of water vapor in the air will reduce the partial pressure of oxygen.
A decrease in blood pressure will cause an increase in GFR through sympathetic
stimulation.
Blood pressure is regulated through the actions of the kidneys.
Exceeding the VO2max will result in lactate production by the muscle.
A chronically high hormone concentration often leads to an increased receptor number.
A male with 5 alpha-reductase deficiency will have male internal sex organs but more
female appearing external genitals.
Pharmacological concentrations of hormones causes normal tissue responses.
Water permeability of the proximal convoluted tubule is regulated by antidiuretic
hormone.
The zona glomerulosa of the adrenal cortex secretes the mineralocorticoids.
Pituitary dwarfism is caused by growth years hyposecretion of growth hormone.
Increasing the frequency of action potentials in a somatic motor neuron will induce
increased force of muscle contraction.
The hydrophobic center of the plasma membrane will restrict the movement of water
and fat-soluble substances through the membrane.
Abnormally high concentration of the BB form of creatine phosphokinase is associated
with a myocardial infarction.
Cocaine blocks the release of dopamine, norepinephrine, and serotonin.
By affecting the diameter of cutaneous blood vessels, motor nerve fibers in the skin can
regulate the rate of blood flow.
Inhibiting hepatic function has no effect onblood clotting.
Myoglobin has a greater affinity for oxygen than hemoglobin.
What technique has been affective in the treatment of inborn errors of metabolism such
as SCID?
A. allosteric inhibition
B. gene therapy
C. coenzyme activation
D. None of the choices is correct.
A follicle that does not complete development as a graafian follicle will
A.rest until the next month.
B.continue meiosis.
C.become a primordial follicle.
D.undergo follicle atresia.
What organelle functions to chemically modify cellular products and package them in
vesicles?
A. Golgi complex
B. mitochondrion
C. lysosome
D. ribosome
The process in which an amine group is transferred from one amino acid to another is
called
A. deamination.
B. beta-oxidation.
C. phosphorylation.
D. transamination.
The actual yield of ATP from 1 glucose is
A.18-20 ATP.
B.36-38 ATP.
C.30-32 ATP.
D.26-28 ATP.
What theory explains the ability of the electron transport system to pump protons
between the inner and outer mitochondrial membranes?
A.tricarboxylic acid theory
B.chemiosmotic theory
C.phosphorylation theory
D.proton pump theory
Which of the following is NOT true of slow oxidative/Type I red muscle fibers?
A.small diameter
B.high resistance to fatigue
C.high amount of myosin ATPase present
D.slow twitch rate
A free radical has
A.paired electrons.
B.unpaired electrons.
C.unbonded electrons.
D.bonded electrons.
Deglutition is coordinated by the swallowing center in the
A.brain stem.
B.cerebrum.
C.spinal cord.
D.cerebellum.
A "word salad" speech pattern occurs when
A. Wernicke's area is damaged.
B. Broca's area is damaged.
C. the angular gyrus is damaged.
D. spinal nerves are damaged.
What characteristic of phospholipids allows them to form the double layer seen in cell
membranes?
A.They are amphipathic.
B.They are totally nonpolar.
C.They are soluble in water.
D.They are totally hydrophobic.
Which type of connective tissue is characterized by a liquid extracellular matrix?
A.bone
B.blood
C.adipose
D.irregular dense connective tissue
Impulses of pain are also transmitted to the _____ which is part of the limbic system.
A.cingulate gyrus
B.amygdala
C.hippocampus
D.caudate nucleus
The primary filter to exclude proteins from the filtrate is the
A.glomerular basement membrane
B.capillary fenestrae
C.parietal layer of the capsule
D.slit diaphragm
The BMI of a female weighing 130 pounds with a height of 68 inches would be closest
to
A.2.4.
B.19.8.
C.76.5.
D.34.8.
Activation of the sympathoadrenal system would cause
A.hypoglycemia.
B.diabetes insipidus.
C.hyperglycemia.
D.excessive weight gain.
________ are composed of crystals and proteins that grow until they break loose and
pass into the urine collection system.
A.Renal columns
B.Renal calculi
C.Renal calyces
D.Renal pyramids
Through renal autoregulation, an increase in blood pressure will cause the afferent
arteriole to ____ and therefore the GFR will ____.
A.dilate, not change
B.dilate, decrease.
C.constrict, decrease.
D.constrict, not change.
Sensory impulses for fine touch, precise pressures, and body movement are carried by
the _____ tracts.
A. anterior spinothalamic
B. posterior spinocerebellar
C. lateral spinothalamic
D. fasciculi cuneatus and gracilis
Right side heart failure results in increased right atrial pressure and peripheral
congestion and edema.
The vagus nerve would innervate all of the following except
A.the heart.
B.the stomach.
C.the liver.
D.the iris.
Which of the following is a special sense?
A. touch
B. vision
C. pain
D. All apply.
Which of the following may result from emphysema?
A.reduced gas exchange surface area
B.air trapping
C.cor pulmonale
D.All of the choices are correct.
Ammonia is produced by
A. transamination.
B. oxidative deamination.
C. glycogenolysis.
D. the Cori cycle.
The TCA cycle occurs in mitochondria.
What type of cell signaling uses chemicals called neurotransmitters to innervate its
target organ?
A. synaptic signaling
B. paracrine signaling
C. endocrine signaling
D. gap junctions
Most protein digestion occurs in the
A.mouth and esophagus.
B.stomach and duodenum.
C.duodenum and jejunum.
D.pancreas and duodenum.
Obesity in adults results primarily from adipocyte hyperplasia.
How many chromosomes are found in a normal human cell?
A.23
B.23 pair
C.46
D.Both 23 pair and 46 are correct.
What hormone triggers ovulation?
A. LH
B. FSHC
C. progesterone
D. hCG
Organic acids will contain
A. a carboxyl group.
B. a carbonyl group.
C. an amino group.
D. a hydroxyl group.
A shortening of the muscle that occurs when the tension is greater than the load is a(n)
A. concentric contraction.
B. isometric contraction.
C. eccentric contraction.
D. isokinetic contraction.
Which of the following is NOT a type of lipid?
A.prostaglandins
B.triglycerides
C.cholesterol
D.glycogen
