Which of the following reactions is most likely to be exergonic? Select all correct choices
A. the synthesis of a phospholipid from
glycerol and fatty acids
B. the replication of DNA from free
nucleotides
C. the formation of cellulose from individual
glucose molecules
D. the digestion of protein from food into
amino acids
Answer Key: D
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Using the tryptophan operon as a model, explain a transcription pause site and the formation of a stem-loop
What will be an ideal response?
The term that refers to those microbes found as symbionts in a short relationship of a nongrowing nature is ________.
Fill in the blank(s) with the appropriate word(s).
An agent that can cause birth defects is known as a(n)
a. teratogen. b. mutagen. c. carcinogen. d. haptene. e. allergen.
Normal and sickle-cell hemoglobin molecules differ
A) in the number of amino acids in each molecule. B) by a single DNA point mutation that leads to the substitution of one amino acid for another. C) in the number and orientation of the amino acid chains attached to the heme portion of each molecule. D) in the number of oxygen molecules that can be carried by each molecule. E) by the type of bone marrow that produces them.