Which of the following protein classes are not found as membrane proteins?
A. receptors
B. enzymes
C. hormones
D. transport channels
E. identity markers
Answer: C
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In what ways can biologists contribute to the challenges faced by humanity in the 21st century?
A. All of the answer options are correct. B. They can develop crops that yield more food in the face of changing environmental conditions. C. They can make predictions about how global change will impact species and communities. D. They can work with lawmakers to ensure that government policies are environmentally sound. E. They can develop new methods to fight diseases.
What is the most assured method of identifying an individual?
a. full genome sequencing b. short tandem repeat analysis c. SNP-chip analysis d. DNA-DNA hybridization e. PCR amplification
A hypothesis is:
a. a tentative explanation. b. a systematic thought process. c. an observation. d. a placebo. e. a conclusion.
A molecule that closely resembles the shape of a substrate for an enzyme and that decreases the activity of the enzyme would most likely serve as a(n)
A. noncompetitive inhibitor. B. allosteric inhibitor. C. allosteric activator. D. competitive inhibitor.