Test Bank for Lehninger Principles of Biochemistry 8th Edition – David L. Nelson & Michael M. Cox | Latest Update 2026 | Graded A+ | Exam Prep

,TABLE OF CONTENTS


• Chapter 1 –AThe Foundations of Biochemistry

• Chapter 2 –AWater

• Chapter 3 – Amino Acids, Peptides, and Proteins

• Chapter 4 –AThe Three-Dimensional Structure of Proteins

• Chapter 5 –AProtein Function

• Chapter 6 – Enzymes

• Chapter 7 –ACarbohydrates and Glycobiology

• Chapter 8 –ANucleotides and Nucleic Acids

• Chapter 9 – DNA-Based Information Technologies

• Chapter 10 –ALipids

• Chapter 11 –ABiological Membranes and Transport

• Chapter 12 – Biosignaling

• Chapter 13 –APrinciples of Bioenergetics

• Chapter 14 –AGlycolysis, Gluconeogenesis, and the Pentose Phosphate Pathway

,Chapter 1 The Foundations of Biochemistry



Multiple Choice Questions


1. Cellular foundations
Pages: 2-4
Difficulty:
1 Ans:AC
In a bacterial cell, the DNA is in the:


A) cell envelope.
B) cell membrane.
C) nucleoid.
D) nucleus.
E) ribosomes.

2. Cellular foundations
Page: 3 Difficulty: 1
Ans: E
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. Cellular foundations
Page: 3 Difficulty: 1
Ans: B
In eukaryotes, the nucleus is enclosed by a double membrane called the:


A) cell membrane.
B) nuclearAenvelope.

, C) nucleolus.
D) nucleoplasm.
E) nucleosome.

4. Cellular foundations
Page: 4 Difficulty: 1
Ans: C
The dimensions of living cells are limited, on the lower end by the minimum number of biomolec
ules necessary for function, and on the upper end byAthe rate of diffusion of solutes such as oxy
gen.
Except for highly elongated cells, they usually have lengths and diameters in the range of:


A) 0.1 m to 10 m.
B) 0.3 m toA30 m.
C) 0.3 m to 100Am.
D) 1 m to 100 m.
E) 1 m to 300Am.



5. Cellular foundations
Page: 4 Difficulty: 2
Ans: B
Which group of single-celled micro-
organisms has many members found growing in extreme environments?


A) bacteria.
B) archaea.
C) eukaryotes.
D) heterotrophs.
E) none of the above.




Q1. In prokaryotic cells, the genetic material is typically located in the:
A) Nucleus
B) Nucleoid
C) Ribosomes
D) Endoplasmic reticulum

Answer: B) Nucleoid