What effect does a high-protein diet have on the pH of urine?
a) Keeps it in the normal range
b) Increases the acidity
c) Increases the alkalinity
d) Causes an excess of bicarbonate ions in the urine
Ans: b) Increases the acidity
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If a cell has a normal osmotic pressure of 4500 mmHg and is placed into a solution with an osmotic pressure of 3500 mmHg, what will happen to the cell?
A. The cell will lose water and its osmotic pressure will decrease. B. The cell will gain water and its osmotic pressure will decrease. C. The cell will gain water and its osmotic pressure will increase. D. The cell will lose water and its osmotic pressure will increase. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you know about how a cell responds to differences in osmotic pressure? What other information is related to the question? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Choose the most influential contributing factor to the reduced sense of smell in humans compared with the other great apes.
A. pseudogenes B. conservation of synteny C. aneuploidy D. one more chromosome in humans compared to the other great apes E. number of olfactory receptor (OR) genes present in the genome
Which of the following is not a polysaccharide?
A) extensin B) glycogen C) cellulose D) starch E) chitin
It can take up to __________ days after marijuana
use before the urine tests negative for the drug. a. 3 b. 5 c. 7 d. 10 e. 14