AdvBio1, Ch 1, MC

AdvBio1, Ch 1, MC - Chapter 1 The Foundations of...

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Chapter 1 The Foundations of Biochemistry 1. Multiple Choice Questions 1. In a bacterial cell, the DNA is in the: A) cell envelope. B) cell membrane. C) nucleoid. D) nucleus. E) ribosomes. 2. A major change occurring in the evolution of eukaryotes from prokaryotes was the development of: A) DNA. B) photosynthetic capability. C) plasma membranes. D) ribosomes. E) the nucleus. 3. In eukaryotes, the nucleus is enclosed by a double membrane called the: A) cell membrane. B) nuclear envelope. C) nucleolus. D) nucleoplasm. E) nucleosome. 4. The dimensions of living cells are limited, on the lower end by the minimum number of biomolecules necessary for function, and on the upper end by the rate of diffusion of solutes such as oxygen. Except for highly elongated cells, they usually have lengths and diameters in the range of: A) 0.1 μ m to 10 μ m. B) 0.3 μ m to 30 μ m. C) 0.3 μ m to 100 μ m. D) 1 μ m to 100 μ m. E) 1 μ m to 300 μ m. 5. Which group of single-celled microorganisms has many members found growing in extreme environments?
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Chapter 1 The Foundations of Biochemistry A) Bacteria B) Archaea C) Eukaryotes D) Heterotrophs E) None of the above 6. The bacterium E. coli requires simple organic molecules for growth and energy—it is therefore a: A) chemoautotroph. B) chemoheterotroph. C) lithotroph. D) photoautotroph. E) photoheterotroph. 7. Which one of the following has the cellular components arranged in order of increasing size? A) Amino acid < protein < mitochondrion < ribosome B) Amino acid < protein < ribosome < mitochondrion C) Amino acid < ribosome < protein < mitochondrion D) Protein < amino acid < mitochondrion < ribosome E) Protein < ribosome < mitochondrion < amino acid 8. The three-dimensional structure of macromolecules is formed and maintained primarily through noncovalent interactions. Which one of the following is not considered a noncovalent interaction? A) carbon-carbon bonds B) hydrogen bonds C) hydrophobic interactions D) ionic interactions E) van der Waals interactions 9. Which one of the following is not among the four most abundant elements in living organisms? A)
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This note was uploaded on 10/20/2011 for the course CHEM 653 taught by Professor Wei, robert during the Spring '11 term at Cleveland State.

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AdvBio1, Ch 1, MC - Chapter 1 The Foundations of...

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