Cell & Bond Quiz
Preview:
Which of the following is true during inspiration?
A. Intrapleural pressure is positive
B. The volume in the lungs is less than the functional residual capacity(FRC)
C. Alveolar pressure equals atmospheric pressure
D. Intrapleural pressure is more negative than it is during expiration
Which of the following is not an enzyme of Urea Cycle?
A. Arginosuccinate synthetase
B. Ornithine transcarbamoylase
C. Carbamoyl Phosphate Synthetase
D. Glutamate Dehydrogenase
Which of the following characteristics is shared by simple and facilitated diffusion of glucose?
A. Occurs down an electrochemical gradient
B. Is saturable
C. Requires metabolic energy
D. Is inhibited by the presence of galactose
An increase in contractility is demonstrated on a Frank–Starling diagram by
A. increased cardiac output for a given end-diastolic volume
B. increased cardiac output for a given end-systolic volume
C. decreased cardiac output for a given end-diastolic volume
D. decreased cardiac output for a given end-systolic volume
Which is true about enzyme kinetics for competitive inhibition:
A. Low km high affinity
B. High km high affinity
C. High Km low affinity
D. Low Km low affinity
Which of the following lung volumes or capacities can be measured by spirometry?
A. Functional residual capacity (FRC)
B. Physiologic dead space
C. Total lung capacity (TLC)
D. Vital capacity (VC)
Which of the following causes increased aldosterone secretion?
A. Decreased blood volume
B. Administration of an inhibitor of angiotensin-converting enzyme (ACE)
C. Hyperosmolarity
D. Hypokalemia
Cutting which structure causes blindness in the temporal fields of the left and right eyes?
A. Optic nerve
B. Optic chiasm
C. Optic tract
D. Geniculocalcarine tract
The greatest pressure decrease in the circulation occurs across the arterioles because
A. they have the greatest surface area
B. the velocity of blood flow through them is the highest
C. the velocity of blood flow through them is the lowest
D. they have the greatest resistance
Severe thiamine deficiency is associated with:
A. Decreased RBC transketolase activity
B. Increased clotting time
C. Decreased RBC transaminase activity
D. Increased xanthurenic acid excretion
Cholecystokinin (CCK) inhibits
A. gastric emptying
B. pancreatic HCO3– secretion
C. pancreatic enzyme secretion
D. contraction of the gallbladder
Which of the following groups of proteins assist in the folding of other proteins?
A. Proteases
B. Proteosomes
C. Templates
D. Chaperones
Substrate level phosphorylation is by:
A. Pyruvate kinase
B. Phosphofructokinase
C. Hexokinase
D. ATP Synthase
Which of the following substances has the highest renal clearance?
A. Para-aminohippuric acid (PAH)
B. Inulin
C. Glucose
D. Na+
Glycosphingolipid is not made up of:
A. Glucose
B. Glycerol
C. Sphingosine
D. Fatty acids