APHY 102 Chapter 23 Review Exam
Questions and Answers Nutrition and
Metabolism
The sum of all of the biochemical processes going on within the human body at any
given time:
Metabolism
Oxidative phosphorylation
Catabolism
Anabolism - CORRECT ANSWER-Metabolism
Reactions within provide most of the energy needed by a typical cell:
Cytoplasm
The mitochondria
The endoplasmic reticulum
The plasma membrane - CORRECT ANSWER-The mitochondria
What is a nutrient pool?
A general term for vitamins and minerals together
An accessible source of substrates for a cell
The metabolic reserves of the body as a whole
An alternative term for bolus of food in digestive system - CORRECT ANSWER-An
accessible source of substrates for a cell
Cells perform catabolism to generate ATP, which can be used for:
Muscle contraction
Ion transport
Glycogen synthesis
All of these - CORRECT ANSWER-All of these:
Muscle contraction
Ion transport
Glycogen synthesis
The process of synthesizing glucose from noncarbohydrate is called:
Begins with the formation of a molecule of citric acid
Directly produces most of ATP fro catabolism of glucose
, Contains oenzymes ocalled ocytochromes
Forms oacetyl-CoA ofrom oglucose-6-phosphate o- oCORRECT oANSWER-Begins owith othe
oformation oof oa omolecule oof ocitric oacid
The ocarbon odioxide oof orespiration ois oformed oduring:
Glycolysis
The ocitric oacid ocycle
oElectron otransport
The oformation oof opyruvic oacid o- oCORRECT oANSWER-The ocitric oacid ocycle
In othe oETS, accepts oelectrons ofrom oone omolecule oand otransfers othen
oto oanother:
Hydrogen oIon
oA ocoenzyme
oA
ocytochrome
A ocoenzyme oor oa ocytochrome o- oCORRECT oANSWER-A ocoenzyme oor oa ocytochrome
The omajor ojob oof ocoenzymes oin ooxidative ophosphorylation oincludes oall oof othe ofollowing
oexcept:
Release oof ohydrogen oions
oIonization oof ohydrogen oatoms
Release oof oelectrons oto ofirst ocytochrome oof oETS
The obreaking oof ocarbon-carbon ocovalent obonds o- oCORRECT oANSWER-The obreaking
oof ocarbon-carbon ocovalent obonds
creates o90 opercent oof othe oATP onormally ogenerated:
Lipogenesis
oThe oETS
Oxidative ophosphorylation
Glycolysis o- oCORRECT oANSWER-Oxidative ophosphorylation
In othe oprocess oof odigestion, omost onutrient oabsorption otakes oplace oin othe:
Small ointestine
oStomach
o Large
ointestine
Liver o- oCORRECT oANSWER-Small ointestine
Although oother onutrients ocan ofeed ointo othe ocitric oacid ocycle, yields oenergy othe
oquickest:
Glycogen
Questions and Answers Nutrition and
Metabolism
The sum of all of the biochemical processes going on within the human body at any
given time:
Metabolism
Oxidative phosphorylation
Catabolism
Anabolism - CORRECT ANSWER-Metabolism
Reactions within provide most of the energy needed by a typical cell:
Cytoplasm
The mitochondria
The endoplasmic reticulum
The plasma membrane - CORRECT ANSWER-The mitochondria
What is a nutrient pool?
A general term for vitamins and minerals together
An accessible source of substrates for a cell
The metabolic reserves of the body as a whole
An alternative term for bolus of food in digestive system - CORRECT ANSWER-An
accessible source of substrates for a cell
Cells perform catabolism to generate ATP, which can be used for:
Muscle contraction
Ion transport
Glycogen synthesis
All of these - CORRECT ANSWER-All of these:
Muscle contraction
Ion transport
Glycogen synthesis
The process of synthesizing glucose from noncarbohydrate is called:
Begins with the formation of a molecule of citric acid
Directly produces most of ATP fro catabolism of glucose
, Contains oenzymes ocalled ocytochromes
Forms oacetyl-CoA ofrom oglucose-6-phosphate o- oCORRECT oANSWER-Begins owith othe
oformation oof oa omolecule oof ocitric oacid
The ocarbon odioxide oof orespiration ois oformed oduring:
Glycolysis
The ocitric oacid ocycle
oElectron otransport
The oformation oof opyruvic oacid o- oCORRECT oANSWER-The ocitric oacid ocycle
In othe oETS, accepts oelectrons ofrom oone omolecule oand otransfers othen
oto oanother:
Hydrogen oIon
oA ocoenzyme
oA
ocytochrome
A ocoenzyme oor oa ocytochrome o- oCORRECT oANSWER-A ocoenzyme oor oa ocytochrome
The omajor ojob oof ocoenzymes oin ooxidative ophosphorylation oincludes oall oof othe ofollowing
oexcept:
Release oof ohydrogen oions
oIonization oof ohydrogen oatoms
Release oof oelectrons oto ofirst ocytochrome oof oETS
The obreaking oof ocarbon-carbon ocovalent obonds o- oCORRECT oANSWER-The obreaking
oof ocarbon-carbon ocovalent obonds
creates o90 opercent oof othe oATP onormally ogenerated:
Lipogenesis
oThe oETS
Oxidative ophosphorylation
Glycolysis o- oCORRECT oANSWER-Oxidative ophosphorylation
In othe oprocess oof odigestion, omost onutrient oabsorption otakes oplace oin othe:
Small ointestine
oStomach
o Large
ointestine
Liver o- oCORRECT oANSWER-Small ointestine
Although oother onutrients ocan ofeed ointo othe ocitric oacid ocycle, yields oenergy othe
oquickest:
Glycogen
