Question 1

Digestive enzymes delivered to the small intestine from cells in the pancreas are able to leave those cells because of the functioning of the ____.

Accepted Answer

A) endoplasmic reticulum 
B) ribosomes 
C) Golgi apparatus 
D) lysosomes 
A) endoplasmic reticulum 
B) ribosomes 
C) Golgi apparatus 
D) lysosomes A

Question 2

A common mutation in the 5,10-methylenetetrahydrofolate reductase enzyme (MTHFR)____.

Accepted Answer

A) prevents the individual from activating the B vitamin folate 
B) has no effect on the activity of the enzyme 
C) increases the activity of the enzyme 
D) modifies the folate molecule directly 
A) prevents the individual from activating the B vitamin folate 
B) has no effect on the activity of the enzyme 
C) increases the activity of the enzyme 
D) modifies the folate molecule directly A

Question 3

What structural body is made up of flattened cisternae flanked by tubular networks and thought to be an extension of the endoplasmic reticulum?

Accepted Answer

A) nucleus 
B) cytoplasm 
C) lysosome 
D) Golgi apparatus 
A) nucleus 
B) cytoplasm 
C) lysosome 
D) Golgi apparatus D

Question 4

Which are highly specialized membrane proteins that modify the cell's response to its environment?

Accepted Answer

A) transport proteins 
B) enzymes 
C) receptors 
D) peroxisomes 
A) transport proteins 
B) enzymes 
C) receptors 
D) peroxisomes

Question 5

The carbohydrate moieties of the plasma membrane glycoproteins and glycolipids are oriented ____.

Accepted Answer

A) outwardly, away from the cytoplasmic matrix 
B) inwardly, toward the lumen 
C) equally inwardly and outwardly to maintain symmetry 
D) between the bilayers of the membranes 
A) outwardly, away from the cytoplasmic matrix 
B) inwardly, toward the lumen 
C) equally inwardly and outwardly to maintain symmetry 
D) between the bilayers of the membranes

Question 6

Match the correct enzyme classification with the examples provided.
-ligases

Accepted Answer

A)  enzymes that catalyze cleavage of C-C,C-S,and certain C-N bonds (excluding peptide bonds)without hydrolysis or oxidation-reduction 
B)  enzymes forming bonds between carbon and other atoms,such as acetyl-CoA carboxylase,which adds bicarbonate to acetyl-CoA to initiate fatty acid synthesis in the cytoplast 
C)  enzymes in the electron transport chain in the mitochondria 
D)  enzymes that catalyze cleavage of bonds by addition of water,such as digestive enzymes 
E)  enzymes that catalyze reactions,not oxidation or reduction,in which a functional group is moved from one substrate to another,such as transaminases 
A)  enzymes that catalyze cleavage of C-C,C-S,and certain C-N bonds (excluding peptide bonds)without hydrolysis or oxidation-reduction 
B)  enzymes forming bonds between carbon and other atoms,such as acetyl-CoA carboxylase,which adds bicarbonate to acetyl-CoA to initiate fatty acid synthesis in the cytoplast 
C)  enzymes in the electron transport chain in the mitochondria 
D)  enzymes that catalyze cleavage of bonds by addition of water,such as digestive enzymes 
E)  enzymes that catalyze reactions,not oxidation or reduction,in which a functional group is moved from one substrate to another,such as transaminases

Question 7

Match each description to one of the following terms.
-energy derived from a series of chemical reactions,each of which exhibits a free energy change

Accepted Answer

A) free energy 
B) activation energy 
C) cellular energy 
D) transition state 
E) standard reduction potential 
A) free energy 
B) activation energy 
C) cellular energy 
D) transition state 
E) standard reduction potential

Question 8

What lifestyle change would be most important to individuals with a common variant in the GST gene that impairs protection against toxins?

Accepted Answer

A) increasing levels of daily exercise 
B) eating a low-fat diet 
C) increasing ingestion of cruciferous vegetables 
D) increasing intake of omega-3 fats 
A) increasing levels of daily exercise 
B) eating a low-fat diet 
C) increasing ingestion of cruciferous vegetables 
D) increasing intake of omega-3 fats

Question 9

Substances that bind with allosteric sites and alter the activity of regulatory enzymes are called ____.

Accepted Answer

A) transport proteins 
B) modulators 
C) Na pumps 
D) sarcoplasmic reticula 
A) transport proteins 
B) modulators 
C) Na pumps 
D) sarcoplasmic reticula

Question 10

Match each description to one of the following terms.
-a higher energy level or barrier at which the exothermic conversion to products takes place

Accepted Answer

A) free energy 
B) activation energy 
C) cellular energy 
D) transition state 
E) standard reduction potential 
A) free energy 
B) activation energy 
C) cellular energy 
D) transition state 
E) standard reduction potential

Question 11

Match the correct enzyme classification with the examples provided.
-lyases

Accepted Answer

A)  enzymes that catalyze cleavage of C-C,C-S,and certain C-N bonds (excluding peptide bonds)without hydrolysis or oxidation-reduction 
B)  enzymes forming bonds between carbon and other atoms,such as acetyl-CoA carboxylase,which adds bicarbonate to acetyl-CoA to initiate fatty acid synthesis in the cytoplast 
C)  enzymes in the electron transport chain in the mitochondria 
D)  enzymes that catalyze cleavage of bonds by addition of water,such as digestive enzymes 
E)  enzymes that catalyze reactions,not oxidation or reduction,in which a functional group is moved from one substrate to another,such as transaminases 
A)  enzymes that catalyze cleavage of C-C,C-S,and certain C-N bonds (excluding peptide bonds)without hydrolysis or oxidation-reduction 
B)  enzymes forming bonds between carbon and other atoms,such as acetyl-CoA carboxylase,which adds bicarbonate to acetyl-CoA to initiate fatty acid synthesis in the cytoplast 
C)  enzymes in the electron transport chain in the mitochondria 
D)  enzymes that catalyze cleavage of bonds by addition of water,such as digestive enzymes 
E)  enzymes that catalyze reactions,not oxidation or reduction,in which a functional group is moved from one substrate to another,such as transaminases

Question 12

Match each description to one of the following terms.
-the energy required to raise the reactants to their transition state

Accepted Answer

A) free energy 
B) activation energy 
C) cellular energy 
D) transition state 
E) standard reduction potential 
A) free energy 
B) activation energy 
C) cellular energy 
D) transition state 
E) standard reduction potential

Question 13

Transcription of DNA cannot be altered.

Accepted Answer

A) True 
 B)False

Question 14

Describe the cytoskeleton (microtrabecular lattice)and its role as an intercommunication system of proteins and other macromolecules.

Accepted Answer

​The answer should include the following

Question 15

What is the role of cholesterol in plasma membrane structure?

Accepted Answer

A) to produce bile 
B) to regulate fluidity and permeability 
C) to reduce stability 
D) to produce hormones 
A) to produce bile 
B) to regulate fluidity and permeability 
C) to reduce stability 
D) to produce hormones

Question 16

If two enzymes (e.g.,pyruvate dehydrogenase and pyruvate carboxylase)compete for the same substrate (pyruvate),the one with the higher Km has less affinity and will be more active when pyruvate concentrations are high.

Accepted Answer

A) True 
 B)False

Question 17

In the cell structure,the ____ provides support and controls the movement of cell organelles.

Accepted Answer

A) endoplasmic reticulum 
B) mitochondrion 
C) cytoskeleton 
D) matrix space 
A) endoplasmic reticulum 
B) mitochondrion 
C) cytoskeleton 
D) matrix space

Question 18

Define and describe diagnostic enzymology.

Accepted Answer

​
Diagnostic enzymology studies intracel

Question 19

Membrane proteins do not serve as ____.

Accepted Answer

A) pumps 
B) detoxifiers 
C) receptors 
D) enzymes 
A) pumps 
B) detoxifiers 
C) receptors 
D) enzymes

Question 20

Membrane lipid bilayers consist primarily of ____.

Accepted Answer

A) phospholipids 
B) cholesterol 
C) proteins 
D) saturated fatty acids 
A) phospholipids 
B) cholesterol 
C) proteins 
D) saturated fatty acids

Digestive enzymes delivered to the small intestine from cells in the pancreas are able to leave those cells because of the functioning of the ____.

A common mutation in the 5,10-methylenetetrahydrofolate reductase enzyme (MTHFR)____.

What structural body is made up of flattened cisternae flanked by tubular networks and thought to be an extension of the endoplasmic reticulum?

Which are highly specialized membrane proteins that modify the cell's response to its environment?

The carbohydrate moieties of the plasma membrane glycoproteins and glycolipids are oriented ____.

Match the correct enzyme classification with the examples provided. -ligases

Match each description to one of the following terms. -energy derived from a series of chemical reactions,each of which exhibits a free energy change

What lifestyle change would be most important to individuals with a common variant in the GST gene that impairs protection against toxins?

Substances that bind with allosteric sites and alter the activity of regulatory enzymes are called ____.

Match each description to one of the following terms. -a higher energy level or barrier at which the exothermic conversion to products takes place

Match the correct enzyme classification with the examples provided. -lyases

Match each description to one of the following terms. -the energy required to raise the reactants to their transition state

Transcription of DNA cannot be altered.

Describe the cytoskeleton (microtrabecular lattice)and its role as an intercommunication system of proteins and other macromolecules.

What is the role of cholesterol in plasma membrane structure?

If two enzymes (e.g.,pyruvate dehydrogenase and pyruvate carboxylase)compete for the same substrate (pyruvate),the one with the higher Km has less affinity and will be more active when pyruvate concentrations are high.

In the cell structure,the ____ provides support and controls the movement of cell organelles.

Define and describe diagnostic enzymology.

Membrane proteins do not serve as ____.

Membrane lipid bilayers consist primarily of ____.

The Digestive System: Mechanism for Nourishing the Body

Carbohydrates

Fiber

Lipids

Protein

Integration and Regulation of Metabolism and the Impact of Exercise

Energy Expenditure, Body Composition, and Healthy Weight

Water-Soluble Vitamins

Fat-Soluble Vitamins

Major Minerals

Water and Electrolytes

Essential Trace and Ultratrace Minerals

Nonessential Trace and Ultratrace Minerals

Filters

Exam 1: The Cell: A Microcosm of Life

Digestive enzymes delivered to the small intestine from cells in the pancreas are able to leave those cells because of the functioning of the ____.

A common mutation in the 5,10-methylenetetrahydrofolate reductase enzyme (MTHFR)____.

What structural body is made up of flattened cisternae flanked by tubular networks and thought to be an extension of the endoplasmic reticulum?

Which are highly specialized membrane proteins that modify the cell's response to its environment?

The carbohydrate moieties of the plasma membrane glycoproteins and glycolipids are oriented ____.

Match the correct enzyme classification with the examples provided. -ligases

Match each description to one of the following terms. -energy derived from a series of chemical reactions,each of which exhibits a free energy change

What lifestyle change would be most important to individuals with a common variant in the GST gene that impairs protection against toxins?

Substances that bind with allosteric sites and alter the activity of regulatory enzymes are called ____.

Match each description to one of the following terms. -a higher energy level or barrier at which the exothermic conversion to products takes place

Match the correct enzyme classification with the examples provided. -lyases

Match each description to one of the following terms. -the energy required to raise the reactants to their transition state

Transcription of DNA cannot be altered.

Describe the cytoskeleton (microtrabecular lattice)and its role as an intercommunication system of proteins and other macromolecules.

What is the role of cholesterol in plasma membrane structure?

If two enzymes (e.g.,pyruvate dehydrogenase and pyruvate carboxylase)compete for the same substrate (pyruvate),the one with the higher Km has less affinity and will be more active when pyruvate concentrations are high.

In the cell structure,the ____ provides support and controls the movement of cell organelles.

Define and describe diagnostic enzymology.

Membrane proteins do not serve as ____.

Membrane lipid bilayers consist primarily of ____.

The Digestive System: Mechanism for Nourishing the Body

Carbohydrates

Fiber

Lipids

Protein

Integration and Regulation of Metabolism and the Impact of Exercise

Energy Expenditure, Body Composition, and Healthy Weight

Water-Soluble Vitamins

Fat-Soluble Vitamins

Major Minerals

Water and Electrolytes

Essential Trace and Ultratrace Minerals

Nonessential Trace and Ultratrace Minerals

Filters