All of the following are found in DNA EXCEPT
A) a phospholipid group.
B) deoxyribose.
C) a phosphate group.
D) guanine.
E) thymine.
A
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If the partial pressure of oxygen outside of a cell is 100 mmHg and the partial pressure of oxygen inside of a cell is 25 mmHg, which of the following statements is correct?
A. There will be a net movement of oxygen from outside the cell to inside the cell. B. There will be a net movement of oxygen from inside the cell to outside the cell. C. There will be no net movement of oxygen in either direction. D. There will be a net movement of carbon dioxide into the cell. E. There will be a net movement of carbon dioxide out of the cell.
Halophiles are able to survive
a. under any extreme environmental condition. b. in extremely high salt concentrations. c. at very high temperatures. d. by producing methane. e. at very cold temperatures.
A compound that dissociates in water to produce ________ is called a salt
A) hydrogen ions B) anions C) hydroxyl ions D) cations E) anions and cations
The most durable element of the cytoskeleton in animal cells is a system of tough, fibrous protein molecules twined together in an overlapping arrangement?
What will be an ideal response?