A high concentration of chlorophyll imbedded in the plasma membrane fold of a newly discovered species of bacteria suggests a:
A. Photoheterotrophic metabolism
B. Photoautotrophic metabolism
C. Chemoheterotrophic metabolism
D. Chemolithoautotrophic metabolism
Answer: B
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Which of the following functions does an
arthropod’s exoskeleton serve?
a. protection from predators b. attachment points for muscles c. water conservation d. body weight support e. it serves all of these functions
In lakes and ponds, shallow water near the shore comprises the:
1.Limnetic zone
2.Littoral zone
3.Photic zone
4.Profundal zone
Identify the stage (or stages) of cellular respiration that occurs entirely outside of the mitochondria
A) Citric acid cycle B) Electron transport chain C) Glycolysis D) All of the above
Which of the following is NOT a characteristic of viruses?
A. they are visible with a light microscope. B. they are acellular. C. they are composed of genetic material and protein. D. they are typically smaller than prokaryotic cells. E. they are obligatory parasites.