Question 1

According to the figure above, which amino acid is coded for by the nitrogenous-base sequence AGG?

Accepted Answer

A) Arginine 
B) Alanine 
C) Leucine 
D) Lysine 
A) Arginine 
B) Alanine 
C) Leucine 
D) Lysine

Question 2

Which of the above pairs of side chains could be involved in an ionic interaction?

Accepted Answer

A) a and b 
B) a and c 
C) b and c 
D) b and d 
E) none of the above 
A) a and b 
B) a and c 
C) b and c 
D) b and d 
E) none of the above

Question 3

mRNA does not remain associated with DNA after being generated through transcription because ________.

Accepted Answer

A) a special enzyme breaks the nucleotide bonds 
B) the amine groups are not compatible 
C) the mRNA is so much longer than the DNA 
D) the hydroxyl group on the ribose prevents the mRNA from binding to the DNA 
A) a special enzyme breaks the nucleotide bonds 
B) the amine groups are not compatible 
C) the mRNA is so much longer than the DNA 
D) the hydroxyl group on the ribose prevents the mRNA from binding to the DNA

Question 4

What is the main difference between the sugars that make up starch and the sugars that make up cellulose?

Accepted Answer

A) The sugars are isomers of glucose but bonded in different orientations. 
B) Starch and cellulose are made of polysaccharides. 
C) The sugars are identical. 
D) The sugars form hydrogen bonds. 
E) The sugars are completely different. 
A) The sugars are isomers of glucose but bonded in different orientations. 
B) Starch and cellulose are made of polysaccharides. 
C) The sugars are identical. 
D) The sugars form hydrogen bonds. 
E) The sugars are completely different.

Question 5

Suggest why the glycemic index for sucrose is only about 64 percent that of glucose.

Accepted Answer

A) Glucose must first bind to sucrose before it is able to increase blood glucose levels. 
B) It is a dissacharide with only one glucose unit. 
C) Sucrose can not be readily absorbed by the blood. 
D) The glycemic index does not measure sucrose, only glucose. 
A) Glucose must first bind to sucrose before it is able to increase blood glucose levels. 
B) It is a dissacharide with only one glucose unit. 
C) Sucrose can not be readily absorbed by the blood. 
D) The glycemic index does not measure sucrose, only glucose.

Question 6

The following statement describes what level of structure in a protein? Several separate proteins link together to form an active enzyme.

Accepted Answer

A) primary structure 
B) secondary structure 
C) tertiary structure 
D) quaternary structure 
E) none of the above 
A) primary structure 
B) secondary structure 
C) tertiary structure 
D) quaternary structure 
E) none of the above

Question 7

Why are children more susceptible to vitamin deficiencies than adults?

Accepted Answer

A) Children have not built up a vitamin reserve in their fat stores. 
B) Children are growing faster than adults and therefore need more vitamins. 
C) Adults eat more than children and take in more vitamins in their food. 
D) Adults bodies do not degrade vitamins as fast as a child's body. 
E) none of the above 
A) Children have not built up a vitamin reserve in their fat stores. 
B) Children are growing faster than adults and therefore need more vitamins. 
C) Adults eat more than children and take in more vitamins in their food. 
D) Adults bodies do not degrade vitamins as fast as a child's body. 
E) none of the above

Question 8

The general outcome of anabolism is ________.

Accepted Answer

A) the building of biomolecules 
B) a process known as cellular respiration 
C) the tearing down of biomolecules 
D) the catalytic formation of energy 
A) the building of biomolecules 
B) a process known as cellular respiration 
C) the tearing down of biomolecules 
D) the catalytic formation of energy

Question 9

The two strands of DNA in the double helix are held to each other by ________.

Accepted Answer

A) covalent bonds 
B) ionic bonds 
C) metallic bonds 
D) dipole-dipole attractions 
A) covalent bonds 
B) ionic bonds 
C) metallic bonds 
D) dipole-dipole attractions

Question 10

The number of adenines in a DNA molecule is always the same as the number of thymines because ________.

Accepted Answer

A) adenines are paired opposite of guanine in a DNA molecule 
B) the structure of adenine is very similar to uracil 
C) of the strong attraction between the nucleotides of adenine and thymine 
D) none of the above 
A) adenines are paired opposite of guanine in a DNA molecule 
B) the structure of adenine is very similar to uracil 
C) of the strong attraction between the nucleotides of adenine and thymine 
D) none of the above

Question 11

Fat molecules do not have ________.

Accepted Answer

A) a nitrogen atom 
B) an oxygen atom 
C) a carbon atom 
D) a hydrogen atom 
A) a nitrogen atom 
B) an oxygen atom 
C) a carbon atom 
D) a hydrogen atom

Question 12

How are disaccharides and monosaccharides related?

Accepted Answer

A) A disaccharide is composed of two monosaccharide units. 
B) A disaccharide is composed of two of the same monosaccharide units. 
C) Two disaccharides are combined to form a monosaccharide. 
D) Two different disaccharides are combined to form a monosaccharide. 
E) Two of the same disaccharides are combined to form a monosaccharide. 
A) A disaccharide is composed of two monosaccharide units. 
B) A disaccharide is composed of two of the same monosaccharide units. 
C) Two disaccharides are combined to form a monosaccharide. 
D) Two different disaccharides are combined to form a monosaccharide. 
E) Two of the same disaccharides are combined to form a monosaccharide.

Question 13

Tertiary protein structure is determined by ________.

Accepted Answer

A) chemical bonds 
B) intermolecular attractions 
C) glucose units 
D) vitamin abundance 
A) chemical bonds 
B) intermolecular attractions 
C) glucose units 
D) vitamin abundance

Question 14

How many nucleotides does it take to code a single amino acid?

Accepted Answer

A) 3 
B) 2 
C) 1 
D) 40 
E) 20 
A) 3 
B) 2 
C) 1 
D) 40 
E) 20

Question 15

The following statement describes what level of structure in a protein? The set of linked amino acids folds repeatedly and creates a large linear globular shape.

Accepted Answer

A) primary structure 
B) secondary structure 
C) tertiary structure 
D) quaternary structure 
E) none of the above 
A) primary structure 
B) secondary structure 
C) tertiary structure 
D) quaternary structure 
E) none of the above

Question 16

What would be the complimentary strand to the following sequence of DNA? 
GATTACA

Accepted Answer

A) CTAATGT 
B) GATTACA 
C) AGCCGTG 
D) ACATTAG 
E) GTGCCGA 
A) CTAATGT 
B) GATTACA 
C) AGCCGTG 
D) ACATTAG 
E) GTGCCGA

Question 17

The mineral selenium is very poisonous, which ________.

Accepted Answer

A) means that any selenium in our diet is a bad thing 
B) tells us that it must be inorganic 
C) doesn't mean it might also be a very essential ultratrace mineral 
D) suggests that it is a potent allergen 
A) means that any selenium in our diet is a bad thing 
B) tells us that it must be inorganic 
C) doesn't mean it might also be a very essential ultratrace mineral 
D) suggests that it is a potent allergen

Question 18

Which of the following functional groups play the biggest role in the properties of carbohydrates?

Accepted Answer

A) alcohols 
B) ethers 
C) esters 
D) amides 
E) phenols 
A) alcohols 
B) ethers 
C) esters 
D) amides 
E) phenols

Question 19

How do fats compare to other biomolecules as a source of energy?

Accepted Answer

A) Fats have more energy than carbohydrates or protein. 
B) Fats have less energy than carbohydrates or protein. 
C) Fats have less energy than carbohydrates but more than protein. 
D) Fats have more energy than carbohydrates but less protein. 
E) All biomolecules have the same amount of stored energy. 
A) Fats have more energy than carbohydrates or protein. 
B) Fats have less energy than carbohydrates or protein. 
C) Fats have less energy than carbohydrates but more than protein. 
D) Fats have more energy than carbohydrates but less protein. 
E) All biomolecules have the same amount of stored energy.

Question 20

What is the functional group that links amino acids together to form proteins?

Accepted Answer

A) an amide 
B) a carboxylate 
C) an ether 
D) an amine 
E) a hydrocarbon 
A) an amide 
B) a carboxylate 
C) an ether 
D) an amine 
E) a hydrocarbon

According to the figure above, which amino acid is coded for by the nitrogenous-base sequence AGG?

Which of the above pairs of side chains could be involved in an ionic interaction?

mRNA does not remain associated with DNA after being generated through transcription because ________.

What is the main difference between the sugars that make up starch and the sugars that make up cellulose?

Suggest why the glycemic index for sucrose is only about 64 percent that of glucose.

The following statement describes what level of structure in a protein? Several separate proteins link together to form an active enzyme.

Why are children more susceptible to vitamin deficiencies than adults?

The general outcome of anabolism is ________.

The two strands of DNA in the double helix are held to each other by ________.

The number of adenines in a DNA molecule is always the same as the number of thymines because ________.

Fat molecules do not have ________.

How are disaccharides and monosaccharides related?

Tertiary protein structure is determined by ________.

How many nucleotides does it take to code a single amino acid?

The following statement describes what level of structure in a protein? The set of linked amino acids folds repeatedly and creates a large linear globular shape.

What would be the complimentary strand to the following sequence of DNA? GATTACA

The mineral selenium is very poisonous, which ________.

Which of the following functional groups play the biggest role in the properties of carbohydrates?

How do fats compare to other biomolecules as a source of energy?

What is the functional group that links amino acids together to form proteins?

About Science

Particles of Matter

Elements of Chemistry

Subatomic Particles

The Atomic Nucleus

How Atoms Bond

How Molecules Mix

How Water Behaves

How Chemicals React

Acids and Bases in Our Environment

Oxidations and Reductions Charge the World

Organic Compounds

Medicinal Chemistry

Optimizing Food Production

Protection Water and Air Resources

Capturing Energy

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Exam 13: Nutrients of Life

According to the figure above, which amino acid is coded for by the nitrogenous-base sequence AGG?

Which of the above pairs of side chains could be involved in an ionic interaction?

mRNA does not remain associated with DNA after being generated through transcription because ________.

What is the main difference between the sugars that make up starch and the sugars that make up cellulose?

Suggest why the glycemic index for sucrose is only about 64 percent that of glucose.

The following statement describes what level of structure in a protein? Several separate proteins link together to form an active enzyme.

Why are children more susceptible to vitamin deficiencies than adults?

The general outcome of anabolism is ________.

The two strands of DNA in the double helix are held to each other by ________.

The number of adenines in a DNA molecule is always the same as the number of thymines because ________.

Fat molecules do not have ________.

How are disaccharides and monosaccharides related?

Tertiary protein structure is determined by ________.

How many nucleotides does it take to code a single amino acid?

The following statement describes what level of structure in a protein? The set of linked amino acids folds repeatedly and creates a large linear globular shape.

What would be the complimentary strand to the following sequence of DNA? GATTACA

The mineral selenium is very poisonous, which ________.

Which of the following functional groups play the biggest role in the properties of carbohydrates?

How do fats compare to other biomolecules as a source of energy?

What is the functional group that links amino acids together to form proteins?

About Science

Particles of Matter

Elements of Chemistry

Subatomic Particles

The Atomic Nucleus

How Atoms Bond

How Molecules Mix

How Water Behaves

How Chemicals React

Acids and Bases in Our Environment

Oxidations and Reductions Charge the World

Organic Compounds

Medicinal Chemistry

Optimizing Food Production

Protection Water and Air Resources

Capturing Energy

Filters