Which of the following describes an enzyme?
a. A catalyst in a biochemical reaction that is typically a protein
b. A fat molecule that is linked to a glycerol molecule
c. A polymer of nucleotides that is involved in protein synthesis
d. A type of lipid that is composed of four fused hydrocarbon rings
a. A catalyst in a biochemical reaction that is typically a protein
An enzyme is a catalyst in a biochemical reaction that is typically a protein.
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True or False: If all other aspects of their lifestyles were equivalent, a vegetarian would have a smaller ecological footprint than someone who consumes a large amount of meat
A. true B. false
Due to a genetic defect, an individual is unable to make T cytotoxic cells. Predict the most likely consequence.
A. The individual will have SCID (severe combined immunodeficiency disease). B. The person will have frequent infections caused by Staphylococcus and Streptococcus. C. The person will not be able to adequately fight viral infections and infections caused by intracellular bacteria. D. The individual will not be able to synthesize any antibodies.
. Four of the five answers listed below are
relationships in which at least one of the interactants benefits. Select the EXCEPTION.
a. competition b. parasitism c. mutualism d. commensalism e. predation
The hippocampus is responsible for processing sensory stimuli
Indicate whether the statement is true or false