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CHEM 464 Biochemistry Practice Questions Chapters 1-8, 10-11 Questions answers latest update $13.99
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CHEM 464 Biochemistry Practice Questions Chapters 1-8, 10-11 Questions answers latest update
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CHEM 464 Biochemistry Practice Questions Chapters 1-8, 10-11 Questions answers latest update

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  • December 4, 2024
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CHEM 464 Biochemistry Practice
Questions Chapters 1-8, 10-11

In a bacterial cell, the DNA is in the:

A) cell envelope.

B) cell membrane.

C) nucleoid.

D) nucleus.

E) ribosomes. - C) nucleoid.



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

A) cell membrane.

B) nuclear envelope.

C) nucleolus.

D) nucleoplasm.

E) nucleosome. - B) nuclear envelope.



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

A) bacteria

B) archaea

,C) eukaryotes

D) heterotrophs

E) None of the answers is correct - B) archaea



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 - D) mitochondria, endoplasmic reticulum,
peroxisomes



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 interaction - A) carbon-carbon bonds



The four covalent bonds in methane (CH4) are arranged around carbon to give
which geometry?

,A) linear

B) tetrahedral

C) trigonal bipyramidal

D) trigonal planar

E) trigonal pyramidal - B) tetrahedral



The macromolecules that serve in the storage and transmission of genetic
information are:

A) carbohydrates.

B) lipids.

C) membranes.

D) nucleic acids.

E) proteins. - D) nucleic acids.



The catalog of all proteins functioning in a cell is the:

A) metabolome.

B) proteasome.

C) lysosome.

D) proteome.

E) genome - D) proteome.

, The enzyme fumarase catalyzes the reversible hydration of fumaric acid to l-
malate, but it will not catalyze the hydration of maleic acid, the cis isomer of
fumaric acid. This is an example of:

A) biological activity.

B) chiral activity.

C) racemization.

D) stereoisomerization.

E) stereospecificity - E) stereospecificity



If heat energy is absorbed by the system during a chemical reaction, the reaction
is said to be:

A) at equilibrium.

B) endergonic.

C) endothermic.

D) exergonic.

E) exothermic. - C) endothermic.



The major carrier of chemical energy in all cells is:

A) acetyl triphosphate.

B) adenosine monophosphate.

C) adenosine triphosphate.

D) cytosine tetraphosphate.

E) uridine diphosphate. - C) adenosine triphosphate.

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