Which of the following statements about the monomers and polymers found in living organisms is false?
A) Cells typically make all of their macromolecules from a set of 40-50 common monomers and a few other ingredients that are rare.
B) The monomers used to make polymers are essentially universal.
C) Monomers serve as building blocks for polymers.
D) Monomers are joined together by the process of hydrolysis.
Answer: D
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Which of the following most accurately describes what is happening along the electron transport chain in the accompanying figure?
A) Electrons are transferred to ADP to generate ATP at each step in the process. B) Each electron carrier alternates between being reduced and being oxidized. C) ATP is generated at each step of the process. D) Energy of the electrons increases at each step of the process. E) Molecules in the chain give up some of their potential energy.
If ionizing radiation affects a germ cell then ____
a. no sperm or eggs will be made b. more eggs and sperm than normal will be produced c. sperm and eggs will contain the diploid number of chromosomes d. damage to the DNA will be inherited by an infant e. no problems will arise
Refer to Figure 12-2. The enzyme represented by the letter D is responsible for:a
linking short DNA segments. b. synthesizing the leading strand. c. forming the replication fork. d. forming nucleosomes. e. unwinding the DNA double helix.
All of the following infectious microorganisms are thought to contribute to cancer EXCEPT which one?
A) E. coli B) Epstein-Barr virus C) human papillomavirus D) Helicobacter pylori E) hepatitis B virus