Human Physiology Lab 05 To 07 Review Question Preview (ID: 36631)
Practice For Unit 02 Quiz.
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if substrate A is metabolized to substrate B by Enzyme 1, and substrate B is metabolized to substrate C by Enzyme 2, and substrate C is metabolized to substance D by Enzyme 3, a decrease in substance D without accumulation of substrate B suggests
a) only Enzyme 2 is defective
b) only Enzyme 1 is defective
c) either Enzyme 2 or Enzyme 3 is defective
d) Enzyme 1 lacks end product inhibition
two classic symptoms of diabetes mellitus are 'fruity' breath odor, caused by __________, and _________, or sugar in the urine
a) ketoacidosis, glucosuria
b) fructophylin, glyconuria
c) hemiparesis, saccaroluria
d) hyperkalemia, sweet pea
'inborn errors of metabolism' are caused by
a) errors in the genetic code of the afflicted individual
b) exposure to certain chemicals during foetal development
c) dietary habits of the mother during pregnancy
d) incomplete protein folding
to maintain blood sugar homeostasis, the body relies on a hormone, __________ that is _________ to insulin
a) glucagon, antagonistic
b) glucagon, complementary
c) gluconeogenesis, facilitative
d) gluonase, very very small
the 'sensory homunculus' diagram is meant to show how tactile receptors from parts of the body are mapped onto the _________ cortex of the brain in the _________
a) somatosensory, post-central gyrus
b) primary motor, pre-central gyrus
c) memory integration, hippocampus
d) somatosensory, cerebellum
in one type of referred pain, damage to a nerve can cause the perception of pain in an area of the body _______ the damage- even if it is not there.
a) distal to
b) proximal to
c) adjacent to
d) not associated with
in one type of referred pain, injury to _____________ is perceived as being located _________
a) visceral organ, near body surface
b) body surface, deep within the body
c) the left side of the body, the right side of the body
d) the body, outside the body
__________ receptors send impulses at a steady rate as long as the stimulus is present; ____________ receptors only send impulses if the stimulus changes.
a) Tonic, Phasic
b) Neural, Sensory
c) Viceral, Somatic
d) Phasic, Tonic
the shorter the distance in a two-point threshold touch test, the...
a) greater the density of the receptors
b) greater the area covered by each receptor
c) greater the sensitivity of the individual receptors
d) greater the student will do on the quiz
_____________are at the papillary juncture and sense texture, while __________ are deep in the dermis and sense pressure
a) Messiner's corpuscles, Pacinian corpuscles
b) Pacinian corpuscles, Messiner's corpuscles
c) Ruffini corpuscles, Messiner's corpuscles
d) Pacinian corpuscles, Ruffini corpuscles
cutaneous receptors are distributed in a punctate manner, meaning they are
a) more concentrated in some areas than in others
b) uniformly distributed over the surface of the cuteanea
c) found only on surfaces lacking hair follicles
d) only found on surfaces covered with skin
the forms of an enzyme someone has is their _________, while their genetic makeup that determines that is their ______
a) phenotype, genotype
b) genotype, phenotype
c) inheritance, syndrome
d) syndrome, inheritance
Enzymes are made of __________, and thus each one has a specific __________ that codes for it
a) protein, gene
b) amino acids, codon
c) cholesterol, metabolic pathway
d) cofactors, nucleation sequence
Seeing as how Tyrosine is a metabolite of Phenylalanine, an individual with PKU that had a diet deficient in Tyrosine might, as a result, develop
a) Alkaptonuria
b) Type II diabetes
c) Albinsm
d) Lyme Disease
administering insulin can cause severe ________________, creating 'insulin shock'
a) hypoglycemia
b) hyperglycemia
c) reactive hypotension
d) metabolic nystagmus
____________ diabetics would be more susceptible to insulin shock
a) type I
b) type II
c) Obese
d) Ketoacidotic
type II diabetes is characterized by
a) insensitivity to insulin
b) insufficient insulin secretion
c) insufficient glucagon secretion
d) glucagon insensitivity
In addition to affecting glucose levels in the blood, insulin also activates _______________ pathways in liver and adipose tissue
a) anabolic
b) catabolic
c) afferent
d) efferent
Insulin is secreted by the ___ cells of the __________
a) Beta, Pancreas
b) Alpha, Pancreas
c) Beta, Liver
d) Alpha, Liver
Insulin causes a __________ in blood glucose by triggering cells to __________________
a) decrease, uptake more of it
b) increase, uptake less of it
c) decrease, release more of it
d) increase, release less of it
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