Practice Questions

TLS Online TPP Program

#Question id: 14923

Which of the following were key reasons for Mendel's success in elucidating his genetic laws?

#Unit 8. Inheritance Biology

Mendel had a strong understanding of the chemical nature of cells and knew DNA was passed on between generations.
MENDEL CAREFULLY ESTABLISHED TRUE BREEDING LINES AND USED THEM IN HYBRIDIZATION EXPERIMENTS CARRIED OUT OVER MULTIPLE GENERATIONS.
Mendel's use of peas as a model organism and his experience with plant breeding in his father's orchard.
Mendel was able to dedicate the efforts of a large research team and arranged to have very large test plots available for growing the numbers of plants required.

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TLS Online TPP Program

#Question id: 11944

#Unit 7. System Physiology – Animal

The maximum clearance rate possible for a substance that is totally cleared from the plasma is equal to which of the following?

TLS Online TPP Program

#Question id: 11945

#Unit 7. System Physiology – Animal

A patient has the following laboratory values: arterial pH = 7.13, plasma HCO3− = 15 mEq/L, plasma chloride concentration = 118 mEq/L, arterial Pco2 = 28 mm Hg, and plasma Na+ concentration = 141 mEq/L. What is the most likely cause of his acidosis?

TLS Online TPP Program

#Question id: 12070

#Unit 7. System Physiology – Animal

A 26-year-old man develops glomerulonephritis, and his GFR decreases by 50% and remains at that level. For which of the following substances would you expect to find the greatest increase in plasma concentration?

TLS Online TPP Program

#Question id: 12071

#Unit 7. System Physiology – Animal

The most serious hypokalemia would occur in which of the following conditions?

TLS Online TPP Program

#Question id: 12072

#Unit 7. System Physiology – Animal

If the average hydrostatic pressure in the glomerular capillaries is 50 mm Hg, the hydrostatic pressure in the Bowman’s space is 12 mm Hg, the average colloid osmotic pressure in the glomerular capillaries is 30 mm Hg, and there is no protein in the glomerular ultrafiltrate, what is the net pressure driving glomerular filtration?