Which of the following are true statements regarding the volume of tissue nitrogen excreted during the N2 washout test for measuring functional residual capacity (FRC)
1. It is not a factor.
2. It varies with the length of the test.
3. It varies with the weight of the patient.
4. It cannot be correct.
Select one:
a. 1 only
b. 2 and 3 only
c. 2, 3, and 4 only
d. 4 only
Ans: b. 2 and 3 only
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M cyclin binds to Cdk2 in G2, which is required for the progression of the cell through mitosis
a. True b. False
Water has many unique properties. Can you identify the property of water that is responsible for each of the following observations?
A) Water has a high specific heat. B) Water is polar. C) Water has a temperature-stabilizing capacity. D) Water is cohesive. E) Water is a good solvent. F) Water has a high heat of vaporization. 1) Many insects, such as the water strider, are able to move across the surface of water. 2) Most people get chilled immediately after taking a shower. 3) A dime can be made to "float" on the surface of a glass of water. 4) On cold days, the water temperature is often warmer than the surrounding air. 5) Many salts dissolve in water. 6) Many oils will not dissolve in water. 7) The coastal areas of the world have a climate that is more moderate than inland areas. 8) Some springs contain high amounts of arsenic. 9) The Great Salt Lake contains high quantities of mineral solutes.
Within eukaryotic cells, the ____ is surrounded by a double membrane and carries the coding that determines protein synthesis.
Fill in the blank(s) with the appropriate word(s).
Antibiotics bind to RNA polymerase and
A) act as base analogs B) inhibit cell wall synthesis C) disrupt cell membrane function D) inhibit transcription