Test Bank For Lehninger Biochemistry 5th Edition

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Edition: 5th Edition

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Resource Type: Test bank

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Test Bank For Lehninger Biochemistry 5th Edition

ISBN-10: 9780716771081, ISBN-13: 978-0716771081

Chapter 1   The Foundations of Biochemistry

Multiple Choice Questions

  1. Cellular foundations

Pages: 2-4 Difficulty: 1     Ans: C

In a bacterial cell, the DNA is in the:

 

  1. cell envelope.
  2. cell membrane.
  3. Cellular foundations
Page: 3      Difficulty: 1     Ans: E

A major change occurring in the evolution of eukaryotes from prokaryotes was the development of:

 

  1. photosynthetic capability.
  2. plasma membranes.
  3. the nucleus.
  4. Cellular foundations

Page: 3      Difficulty: 1     Ans: B

In eukaryotes, the nucleus is enclosed by a double membrane called the:

 

  1. cell membrane.
  2. nuclear envelope.
  3. Cellular foundations

Page: 4      Difficulty: 1     Ans: C

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:

 

  1. 1 mm to 10 mm.
  2. 3 mm to 30 mm.
  3. 3 mm to 100 mm.
  4. 1 mm to 100 m
  5. 1 mm to 300 m

Cellular foundations

Page: 4      Difficulty: 2     Ans: B

Which group of single-celled micro-organisms has many members found growing in extreme environments?

 

  1. none of the above.

Cellular foundations

Page: 5      Difficulty: 2     Ans: B

The bacterium E. coli requires simple organic molecules for growth and energy—it is therefore a:

 

 

  1. Cellular foundations

Page: 6-8   Difficulty: 2     Ans: B

Which one of the following has the cellular components arranged in order of increasing size?

 

  1. Amino acid < protein < mitochondrion < ribosome
  2. Amino acid < protein < ribosome < mitochondrion
  3. Amino acid < ribosome < protein < mitochondrion
  4. Protein < amino acid < mitochondrion < ribosome
  5. Protein < ribosome < mitochondrion < amino acid

 

  1. Cellular foundations

Page: 10    Difficulty: 2     Ans: A

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?

 

  1. carbon-carbon bonds
  2. hydrogen bonds
  3. hydrophobic interactions
  4. ionic interactions
  5. van der Waals interactions

 

  1. Chemical foundations

Page: 11    Difficulty: 2     Ans: E

Which one of the following is not among the four most abundant elements in living organisms?

 

  1. Carbon
  2. Hydrogen
  3. Nitrogen
  4. Oxygen
  5. Phosphorus

 

  1. Chemical foundations

Page: 12-13           Difficulty: 1     Ans: B

The four covalent bonds in methane (CH4) are arranged around carbon to give which one of the following geometries?

 

  1. linear
  2. tetrahedral
  3. trigonal bipyramidal
  4. trigonal planar
  5. trigonal pyramidal

 

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