Which one of the following correctly describes the order of stem cells from the lowest degree of flexibility to the highest degree of flexibility?
A) multipotent < unipotent < pluripotent < totipotent
B) unipotent < multipotent < totipotent < pluripotent
C) unipotent < multipotent < pluripotent < totipotent
D) pluripotent < unipotent < totipotent < multipotent
Answer: C
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In the absence of oxygen, can cells utilize the electron transport chain?
A. Yes, all cells can make use of the electron transport chain in the absence of oxygen via fermentation. B. No, oxygen is a required cofactor for the complexes in the electron transport chain. C. Yes, in the case that a cell can use a terminal electron acceptor other than oxygen, it can make use of the electron transport chain. D. No, oxygen is the primary electron acceptor in electron transport chains in all cell types.
Which of the following statements is TRUE of both aerobic and anaerobic respiration?
A. Both use glycolysis to oxidize glucose to pyruvate and both produce NADH as high-energy intermediates. B. Both produce NADH as high-energy intermediates and both produce either lactic acid or ethanol as a bioproduct. C. Both produce NADH as high-energy intermediates. D. Both produce either lactic acid or ethanol as a biproduct. E. Both use glycolysis to oxidize glucose to pyruvate.
There are how many different kinds of RNA
nucleotides? a. 3 b. 4 c. 5 d. 6 e. 12
If fluid is leaving a capillary and entering the tissue, which of the following statements is true?
A. This is the venous end of the capillary. B. Plasma proteins are able to leave the capillary. C. The net pressure is in. D. Blood pressure is higher than osmotic pressure. E. Red blood cells are able to leave the capillary.