All cells convert the potential energy found in food molecules into ATP through:
A. entropy
B. photosynthesis
C. catalysis
D. feedback inhibition
E. cellular respiration
Answer: E
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After DNA replication, each chromosome contains two sister _____
a. chromatids b. chromatins c. chromosomes d. centromeres e. centrioles
Four of the five answers listed below are characteristic of meiosis. Select the exception
a. involves two divisions b. reduces the number of chromosomes c. results in producing genetically identical cells d. produces haploid cells e. occurs in the gonads
The McDonald-Kreitman test is an important tool in molecular evolutionary analysis. What is this test, and what kinds of insights can it provide?
What will be an ideal response?
What is the primary reason internal homeostasis must be maintained?
A) Most organisms have not evolved mechanisms to control positive feedback systems. B) Enzymes must retain their correct three-dimensional structure. C) Homeostasis prevents the wasting of stockpiles of coenzymes. D) Unregulated variations cause the cells' DNA to mutate. E) Wide swings in the internal environment interfere with normal metabolic reactions.