Which statement best describes the relationship between an enzyme and a reactant?
A) The relationship is temporary.
B) The enzyme and the reactant molecule are both permanently changed.
C) The resultant product and the enzyme are permanently bonded together.
D) Covalent chemical bonds stabilize the relationship.
E) One enzyme typically has many reactants with which it will associate.
A
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During replication, each parent DNA strand serves as a ________ for synthesis of new DNA strands.
A. scaffold B. reservoir C. copy point D. template E. comparison molecule
In a monocot seed, what is the fate of the
coleoptile?
a. it becomes the stem b. it becomes the root c. it stops growing d. it becomes the cotyledon e. it becomes the hypocotyl
Which of the following is false about polar bears and
cold stress? a. They have coarse, hollow guard hairs in their coats, allowing them to shed water quickly. b. Brown adipose tissue insulates and generates metabolic heat. c. They hibernate during the long, cold, arctic winter. d. Thick, soft underhair traps heat. e. Close bodily contact between mother and cubs helps to reduce heat loss.
All of the following are fundamental properties of cells except:
A) Cells evolve B) Cells are capable of producing more of themselves C) Cells can respond to stimuli D) Cells acquire and use energy E) Cells are simple