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| 1 |
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Q:
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Drugs eliminated by Cytochrome P450 enzymes are metabolized primarily in the:
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A
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liver. |
B
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lungs. |
C
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kidneys. |
D
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stomach. |
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Tags:
Miscellaneous Biology | |
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| 2 |
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Q:
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A contentious issue in stem cell biology is whether mesenchymal stem cells differentiate into cartilage, bone, and fat tissue in vivo or if those effects are only seen in vitro. How might researchers design an experiment to confirm in vivo differentiation? |
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A
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Inject a mouse with labeled mesenchymal stem cells that have been cultured in vitro and track the label at common sites of differentiation. |
B
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Treat mice with a drug that targets mesenchymal stem cells and measure the production of bone, cartilage, and fat tissues. |
C
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Mutate a line of mice to produce a label on their mesenchymal stem cells, and track the activity of the cells at common sites of differentiation. |
D
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Track the population of mesenchymal stem cells in mice as they age and begin to produce less bone, cartilage, and fat tissue. |
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Tags:
Miscellaneous Biology | |
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| 3 |
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Q:
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Pichia pastoris is species of yeast which uses methanol as both a carbon and an energy source. P. pastoris can therefore be classified as a: |
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A
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chemoautotroph. |
B
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chemoheterotroph. |
C
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photoautotroph. |
D
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photohetereotroph. |
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Tags:
Miscellaneous Biology | |
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| 4 |
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Q:
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After many mitotic divisions of a somatic cell in an organism, what is the most significant difference between the original cell and the descendant cell? |
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A
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There are fewer genes. |
B
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The telomeres have shortened. |
C
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The nucleus is smaller. |
D
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The chromatin is denser. |
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Tags:
Human Genetics | Miscellaneous Biology | |
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| 5 |
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Q:
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A pulmonary embolism blocks blood flow in the: |
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A
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heart |
B
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lungs |
C
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liver |
D
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legs |
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Tags:
Miscellaneous Biology | |
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| 6 |
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Q:
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Arabinose is an indigestible sugar and known inhibitor of sucrase which breaks down sucrose in the lumen of the small intestine. Assuming sucrose itself is not absorbed through the small intestine, which of the following effects would arabinose in the diet be expected to have? |
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A
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Increase the caloric impact of a food. |
B
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Increase the production of insulin by the body. |
C
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Decrease the glycemic impact of foods with sucrose as a sweetener. |
D
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The presence of arabinose would not affect the overall impact of sucrose on the body. |
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Tags:
Miscellaneous Biology | Digestive System | |
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| 7 |
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Q:
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Which of the following is considered a fat soluble vitamin?
I. vitamin A
II. vitamin D
III.vitamin E |
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A
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I only |
B
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I and II only |
C
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II only |
D
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I, II and III |
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Tags:
Miscellaneous Biology | |
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| 8 |
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Q:
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Which of the following is not typically a feature of cancer cells? |
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A
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inappropriate angiogenesis |
B
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tumor cell evasion of apoptosis |
C
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decreased presence of telomerase |
D
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ability to evade T-cells |
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Tags:
Miscellaneous Biology | |
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