Nelson Test Bank
b b b
Table Of Contents
b b
Table of Contents
b b 1. The Foundations of Biochemistry 2. Water 3. Amino Acids, Peptides, and
b b b b b b b b b b b
Proteins 4. The Three-Dimensional Structure of Proteins 5. Protein Function 6. Enzymes 7.
b b b b b b b b b b b b b
Carbohydrates and Glycobiology 8. Nucleotides and Nucleic Acids 9. DNA-Based Information
b b b b b b b b b b
Technologies 10. Lipids 11. Biological Membranes and Transport 12. Biosignaling 13. Bioenergetics and
b b b b b b b b b b b b b
Biochemical Reaction Types 14. Glycolysis, Gluconeogenesis, and the Pentose Phosphate Pathway 15.
b b b b b b b b b b b b
Principles of Metabolic Regulation 16. The Citric Acid Cycle 17. Fatty Acid Catabolism 18. Amino Acid
b b b b b b b b b b b b b b b b
Oxidation and the Production of Urea 19. Oxidative Phosphorylation and Photophosphorylation
b b b b b b b b b b b
Oxidative Phosphorylation 20. Carbohydrate Biosynthesis in Plants and Bacteria 21. Lipid Biosynthesis
b b b b b b b b b b b b
22. Biosynthesis of Amino Acids, Nucleotides, and Related Molecules 23. Hormonal Regulation
b b b b b b b b b b b
band Integration of Mammalian Metabolism 24. Genes and Chromosomes 25. DNA Metabolism
b b b b b b b b b b b
26. RNAMetabolism 27. Protein Metabolism 28. Regulation of Gene Expression
b b b b b b b b b b
Page 1 of 648
b b b
,1
1. In a bacterial cell, the DNA is in the:
b b b b b b b b
A) cell envelope. b
B) cell membrane. b
C) nucleoid.
D) nucleus.
E) ribosomes.
2. A major change occurring in the evolution of eukaryotes from prokaryotes was the
b b b b b b b b b b b b
development of:
b b
A) DNA.
B) photosynthetic capability. b
C) plasma membranes. b
D) ribosomes.
E) the nucleus. b
3. In eukaryotes, the nucleus is enclosed by a double membrane called the:
b b b b b b b b b b b
A) cell membrane. b
B) nuclear envelope. b
C) nucleolus.
D) nucleoplasm.
E) nucleosome.
4. The dimensions of living cells are limited, on the lower end by the minimum number of
b b b b b b b b b b b b b b b
biomolecules necessary for function, and on the upper end by the rate of diffusion of
b b b b b b b b b b b b b b b
solutes such as oxygen. Except for highly elongated cells, they usually have lengths and
b b b b b b b b b b b b b b
diameters in the range of:
b b b b b
A) 0.1 m to 10 m. b b b b
B) 0.3 m to 30 m. b b b b
C) 0.3 m to 100 m. b b b b
D) 1 m to 100 m.
b b b b
E) 1 m to 300 m.
b b b b
5. Which group of single-celled microorganisms has many members found growing in
b b b b b b b b b b
extreme environments?
b b
A) bacteria
B) archaea
C) eukaryotes
D) heterotrophs
E) None of the answers is correct.
b b b b b
Page 1 b
, 2
6. The bacterium E. coli requires simple organic molecules for growth and energy—it is
b b b b b b b b b b b b
therefore a:
b b
A) chemoautotroph.
B) chemoheterotroph.
C) lithotroph.
D) photoautotroph.
E) photoheterotroph.
7. Which is a list of organelles?
b b b b b
A) mitochondria, chromatin, endoplasmic reticulum b b b
B) peroxisomes, lysosomes, plasma membrane b b b
C) proteasomes, peroxisomes, lysosomes b b
D) mitochondria, endoplasmic reticulum, peroxisomes b b b
E) All of the answers are correct.
b b b b b
8. Which list has the cellular components arranged in order of INCREASING size?
b b b b b b b b b b b
A) amino acid < protein < mitochondrion < ribosome
b b b b b b b
B) amino acid < protein < ribosome < mitochondrion
b b b b b b b
C) amino acid < ribosome < protein < mitochondrion
b b b b b b b
D) protein < amino acid < mitochondrion < ribosome
b b b b b b b
E) protein < ribosome < mitochondrion < amino acid
b b b b b b b
9. The three-dimensional structure of macromolecules is formed and maintained primarily
b b b b b b b b b
through noncovalent interactions. Which one of the following is NOT considered a
b b b b b b b b b b b b
noncovalent interaction?
b b
A) carbon-carbon bonds b
B) hydrogen bonds b
C) hydrophobic interactions b
D) ionic interactions b
E) van der Waals interactions
b b b
10. Which element is NOT among the four most abundant in living organisms?
b b b b b b b b b b b
A) carbon
B) hydrogen
C) nitrogen
D) oxygen
E) phosphorus
Page 2 b