Glucose and hexanoic acid each contain six carbon atoms, but they have completely different properties. Glucose is a nutrient found in food; hexanoic acid is poisonous. Their differences must be due to different _____.
A. monomers
B. macromolecules
C. isomers
D. quaternary structures
E. functional groups
Answer: E. functional groups
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In a single sodium-potassium pump cycle, ATP is used with the result that
A. 3 sodium ions leave and 2 potassium ions enter. B. 2 sodium ion enters and 1 potassium ion leaves. C. 2 sodium ion leaves and 1 potassium ion enters. D. 3 sodium ions enter and 2 potassium ions leave. E. sodium and potassium ions enter and water leaves.
Describe at least 3 effects of oil spills on marine organisms and the marine environment
What will be an ideal response?
Vibration of the ________ bends hairs of the hair cells, which ultimately generate impulses in ________
A) basilar membrane; hair cells B) sensory neurons; tectorial membrane C) hair cells; sensory neurons D) organ of Corti; hair cells E) basilar membrane; sensory neurons
Which of the following causes opportunistic infections in AIDS patients?
A) Pneumocystis B) Aspergillus C) Rhizopus D) Mucor E) All of the answers are correct.