What feature is common to all the alveolates?
a. heterotrophy
b. lung-like sacs used for respiration
c. bioluminescence
d. complex life cycle with two hosts
e. membrane-bound sacs beneath the plasma
membrane
E
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Which of the following best describes the process of ventilation?
A) the movement of oxygen gas through the blood of the circulatory system B) the movement of carbon dioxide gas through the blood of the circulatory system C) the movement of the respiratory medium past the respiratory surface D) the diffusion of gases into and out of the circulatory system E) the diffusion of gases into and out of tissues where cellular respiration occurs
In what polysaccharide form do plants store glucose to be available later as an energy source?
A. glycogen B. cellulose C. starch D. protein E. fatty acids
The ENCODE Project's goal was to identify all functional DNA sequences within the human genome. Which of the following is a finding from ENCODE?
A) ENCODE was able to classify that a large part of the human genome is "Junk DNA." B) ENCODE was able to determine that each enhancer exerts its regulatory function on only a single gene. C) ENCODE was able to determine that 75% of the genome is transcribed in at least one cell type. D) ENCODE determined that approximately 25% of the human genome has some sort of biochemical function. E) ENCODE determined that approximately 15% of the human genome codes for a protein.
In many cases, carbohydrates have the following ratio of elements:
A) carbon, oxygen, and hydrogen in a ratio of 1:2:1. B) carbon, hydrogen, and nitrogen in a ratio of 1:2:1. C) carbon, hydrogen, and oxygen in a ratio of 2:1:2. D) carbon and hydrogen in a ratio of 1:2. E) carbon, hydrogen, and oxygen in a ratio of 1:2:1.