Lehninger Principles of Biochemistry, 7th Edition Test Bank | David L. Nelson & Michael M. Cox | Questions & Answers

Lehninger Principles of Biochemistry 7th Edition N
elson Test Bank
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Table Of Contents

Table of Contents
1. The Foundations of Biochemistry 2. Water 3. Amino Acids, Peptide
s, and Proteins 4. The Three-
Dimensional Structure of Proteins 5. Protein Function 6. Enzymes 7.
Carbohydrates and Glycobiology 8. Nucleotides and Nucleic Acids 9. DNA-
Based Information Technologies 10. Lipids 11. Biological Membranes and Transport 12. Biosignali
ng 13. Bioenergetics and Biochemical Reaction Types 14. Glycolysis, Gluconeogenesis, and the P
entose Phosphate Pathway 15. Principles of Metabolic Regulation 16. The Citric Acid Cycle 17.
Fatty Acid Catabolism 18. Amino Acid Oxidation and the Production of Urea 19. Oxidative Ph
osphorylation and Photophosphorylation Oxidative Phosphorylation 20. Carbohydrate Biosynthesi
s in Plants and Bacteria 21. Lipid Biosynthesis
22. Biosynthesis of Amino Acids, Nucleotides, and Related Molecules 23. Hormonal Regulat
ion and Integration of Mammalian Metabolism 24. Genes and Chromosomes 25. DNA M
etabolism 26. RNAMetabolism 27. Protein Metabolism 28. Regulation of Gene Expression

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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 w
as 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 nu
mber of biomolecules necessary for function, and on the upper end by the rate o
f diffusion of solutes such as oxygen. Except for highly elongated cells, they usua
lly have lengths and diameters in the range of:
A) 0.1 m to 10 m.
B) 0.3 m to 30 m.
C) 0.3 m to 100 m.
D) 1 m to 100 m.
E) 1 m to 300 m.


5. Which group of single-
celled microorganisms has many members found growing in extreme environm
ents?
A) bacteria
B) archaea
C) eukaryotes
D) heterotrophs
E) None of the answers is correct.




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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 is a list of organelles?
; ; ; ; ; ; ; ; ; ;


A) mitochondria, chromatin, endoplasmic reticulum ;; ; ; ;;


B) peroxisomes, lysosomes, plasma membrane ; ; ; ; ; ;


C) proteasomes, peroxisomes, lysosomes ; ; ; ;


D) mitochondria, endoplasmic reticulum, peroxisomes ;; ; ; ; ;


E) All of the answers are correct.
;; ; ; ; ; ; ; ; ;




8. Which list 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
; ; ;; ; ; ; ; ; ; ;; ; ;




9. The three-
;;


dimensional structure of macromolecules is formed and maintained primarily throu
;; ;; ;; ; ; ; ; ; ; ; ; ; ; ; ; ;;


gh noncovalent interactions. Which one of the following is NOT considered a no ncovale
;; ;; ;; ;; ;; ;; ;; ;; ;; ;; ;; ;; ;;


nt interaction?
; ;


A) carbon-carbon bonds ; ;


B) hydrogen bonds ; ;


C) hydrophobic interactions ; ;


D) ionic interactions ; ;


E) van der Waals interactions
; ; ;; ; ;




10. Which element is NOT among the four most abundant in living organisms?
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;


A) carbon
B) hydrogen
C) nitrogen
D) oxygen
E) phosphorus




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