Which of the following statements concerning protists is false?
a. All protists are eukaryotic organisms; many are unicellular or colonial.
b. The organism that causes malaria is transmitted to humans by the bite of the tsetse fly.
c. All apicomplexans are parasitic.
d. Cellular slime molds have an amoeboid stage that may be followed by a stage during which spores are produced.
e. The euglenozoans that are functionally mixotrophic contain chloroplasts.
Ans: b. The organism that causes malaria is transmitted to humans by the bite of the tsetse fly.
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The main purpose of the Calvin cycle is to produce ________.
A. O2 B. ATP C. Sugar D. CO2
If all three enzymes catalyze the same reaction and your conditions require a pH of 7, the best enzyme
to use would be:
a. enzyme 1. b. enzyme 2. c. enzyme 3. d. either enzyme 2 or 3. e. both enzymes 2 and 3.
The result of the process shown in green in the lower half of the figure is _____
1.a positively charged ion
2.a covalent molecule
3.a negatively charged ion
4.a negatively charged molecule
Proteins that recognize unfolded polypeptides and help them fold into their proper conformations are called ________.
Fill in the blank(s) with the appropriate word(s).