Question 1

Which of these is a basic amino acid?

Accepted Answer

A) Valine 
B) Aspartic acid 
C) Histidine 
D) Tryptophan 
E) Serine 
A) Valine 
B) Aspartic acid 
C) Histidine 
D) Tryptophan 
E) Serine

Question 2

Which of these is a not a correct property of glucose?

Accepted Answer

A) It is easily oxidized. 
B) It is soluble in water. 
C) It releases more energy per gram than lipids. 
D) It will undergo a spontaneous intermolecular cyclization. 
E) All of these are correct properties of glucose. 
A) It is easily oxidized. 
B) It is soluble in water. 
C) It releases more energy per gram than lipids. 
D) It will undergo a spontaneous intermolecular cyclization. 
E) All of these are correct properties of glucose.

Question 3

Which of these determines the primary structure of a protein?

Accepted Answer

A) The sequence of amino acids. 
B) The number of hydrogen bonds. 
C) The ratio of acidic amino acids to basic amino acids. 
D) The polarity of the R groups attached to the amino acids. 
E) The number of alpha helices and pleated sheets along the axis of the protein. 
A) The sequence of amino acids. 
B) The number of hydrogen bonds. 
C) The ratio of acidic amino acids to basic amino acids. 
D) The polarity of the R groups attached to the amino acids. 
E) The number of alpha helices and pleated sheets along the axis of the protein.

Question 4

Compared to a saturated fat with the same number of carbon atoms, a monounsaturated fat will contain:

Accepted Answer

A) one more hydrogen atom. 
B) two more hydrogen atoms. 
C) one fewer hydrogen atom. 
D) two fewer hydrogen atoms. 
E) none of the above. 
A) one more hydrogen atom. 
B) two more hydrogen atoms. 
C) one fewer hydrogen atom. 
D) two fewer hydrogen atoms. 
E) none of the above.

Question 5

Which of these proteins act as an oxygen carrier?

Accepted Answer

A) Hemoglobin 
B) Lysozyme 
C) Keratin 
D) Insulin 
E) None of the above 
A) Hemoglobin 
B) Lysozyme 
C) Keratin 
D) Insulin 
E) None of the above

Question 6

Which of these forces holds the two complementary strands of DNA together?

Accepted Answer

A) Hydrogen bonds 
B) Disulfide linkages 
C) Salt bridges 
D) Hydrophobic interactions 
E) Peptide bonds 
A) Hydrogen bonds 
B) Disulfide linkages 
C) Salt bridges 
D) Hydrophobic interactions 
E) Peptide bonds

Question 7

Which of these is \are  not a common monosaccharide(s)?
I. Glucose
II. Fructose
III. Sucrose

Accepted Answer

A) I only 
B) III only 
C) II and III 
D) I and II 
E) I and III 
A) I only 
B) III only 
C) II and III 
D) I and II 
E) I and III

Question 8

Which of these property\ properties is \are true for starch but not for cellulose?
I. A long chain of glucose molecules.
II. Monosaccharide units are connected by beta linkages.
III. Neighboring monosaccharides form hydrogen bonds.
IV. The polysaccharide is easily broken down by enzymes in the body.

Accepted Answer

A) IV only 
B) I and III 
C) II and III 
D) III and IV 
E) II, III, and IV 
A) IV only 
B) I and III 
C) II and III 
D) III and IV 
E) II, III, and IV

Question 9

Which of these molecules is not a lipid?

Accepted Answer

A) Fatty acids 
B) Oils 
C) Vitamin A 
D) Starch 
E) Triglycerides 
A) Fatty acids 
B) Oils 
C) Vitamin A 
D) Starch 
E) Triglycerides

Question 10

Choose the correct complementary DNA strand for TGTACG?

Accepted Answer

A) CACGTC 
B) CACGTA 
C) ACATGC 
D) UTCGCG 
E) GCTATA 
A) CACGTC 
B) CACGTA 
C) ACATGC 
D) UTCGCG 
E) GCTATA

Question 11

Which of these molecules is the primary means for short-term energy storage?

Accepted Answer

A) Lipids 
B) Nucleic acids 
C) Carbohydrates 
D) Proteins 
E) Plasma 
A) Lipids 
B) Nucleic acids 
C) Carbohydrates 
D) Proteins 
E) Plasma

Question 12

Which of these quaternary interactions occur between nonpolar R groups?

Accepted Answer

A) Hydrogen bonds 
B) Disulfide linkages 
C) Salt bridges 
D) Hydrophobic interactions 
E) Peptide bonds 
A) Hydrogen bonds 
B) Disulfide linkages 
C) Salt bridges 
D) Hydrophobic interactions 
E) Peptide bonds

Question 13

Which of these is not a base found in DNA?

Accepted Answer

A) Adenine 
B) Guanine 
C) Cytosine 
D) Tyrosine 
E) Thymine 
A) Adenine 
B) Guanine 
C) Cytosine 
D) Tyrosine 
E) Thymine

Question 14

Which of these interactions are not characteristic of quaternary and tertiary protein structures?

Accepted Answer

A) Hydrogen bonds 
B) Disulfide linkages 
C) Salt bridges 
D) Peptide bonds 
E) Hydrophobic interactions 
A) Hydrogen bonds 
B) Disulfide linkages 
C) Salt bridges 
D) Peptide bonds 
E) Hydrophobic interactions

Question 15

Which vitamin is not a lipid?

Accepted Answer

A) Vitamin A 
B) Vitamin C 
C) Vitamin D 
D) Vitamin E 
E) Vitamin K 
A) Vitamin A 
B) Vitamin C 
C) Vitamin D 
D) Vitamin E 
E) Vitamin K

Question 16

Which of these forces hold the secondary structure of a protein together?

Accepted Answer

A) Ionic bonds 
B) Hydrogen bonds 
C) Disulfide linkages 
D) Peptide bonds 
E) Phosphate-sugar residues 
A) Ionic bonds 
B) Hydrogen bonds 
C) Disulfide linkages 
D) Peptide bonds 
E) Phosphate-sugar residues

Question 17

Classify this structure.

Accepted Answer

A) dipeptide 
B) fatty acid 
C) polypeptide 
D) protein 
E) triglyceride 
A) dipeptide 
B) fatty acid 
C) polypeptide 
D) protein 
E) triglyceride

Question 18

Which of these saturated fatty acids can only be acquired from peanuts?

Accepted Answer

A) Myristic acid 
B) Palmitic acid 
C) Arachidic acid 
D) Stearic acid 
E) Linoleic acid 
A) Myristic acid 
B) Palmitic acid 
C) Arachidic acid 
D) Stearic acid 
E) Linoleic acid

Question 19

Which of these statements about lipids is incorrect ?

Accepted Answer

A) Lipids act as long-term energy reservoirs. 
B) Vitamins A, D, and K are lipids. 
C) Lipids provide structural integrity in biomembranes. 
D) Lipids contain 100 times the energy per gram versus other biomolecules. 
E) Lipids are relatively insoluble in water but are extractable in nonpolar solvents. 
A) Lipids act as long-term energy reservoirs. 
B) Vitamins A, D, and K are lipids. 
C) Lipids provide structural integrity in biomembranes. 
D) Lipids contain 100 times the energy per gram versus other biomolecules. 
E) Lipids are relatively insoluble in water but are extractable in nonpolar solvents.

Question 20

Which of these is not an amino acid?

Accepted Answer

A) Valine 
B) Aspartic acid 
C) Histidine 
D) Oleic acid 
E) Serine 
A) Valine 
B) Aspartic acid 
C) Histidine 
D) Oleic acid 
E) Serine

Which of these is a basic amino acid?

Which of these is a not a correct property of glucose?

Which of these determines the primary structure of a protein?

Compared to a saturated fat with the same number of carbon atoms, a monounsaturated fat will contain:

Which of these proteins act as an oxygen carrier?

Which of these forces holds the two complementary strands of DNA together?

Which of these is \are not a common monosaccharide(s)? I. Glucose II. Fructose III. Sucrose

Which of these property\ properties is \are true for starch but not for cellulose? I. A long chain of glucose molecules. II. Monosaccharide units are connected by beta linkages. III. Neighboring monosaccharides form hydrogen bonds. IV. The polysaccharide is easily broken down by enzymes in the body.

Which of these molecules is not a lipid?

Choose the correct complementary DNA strand for TGTACG?

Which of these molecules is the primary means for short-term energy storage?

Which of these quaternary interactions occur between nonpolar R groups?

Which of these is not a base found in DNA?

Which of these interactions are not characteristic of quaternary and tertiary protein structures?

Which vitamin is not a lipid?

Which of these forces hold the secondary structure of a protein together?

Classify this structure.

Which of these saturated fatty acids can only be acquired from peanuts?

Which of these statements about lipids is incorrect ?

Which of these is not an amino acid?

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Exam 16: Biochemistry and Biotechnology

Which of these is a basic amino acid?

Which of these is a not a correct property of glucose?

Which of these determines the primary structure of a protein?

Compared to a saturated fat with the same number of carbon atoms, a monounsaturated fat will contain:

Which of these proteins act as an oxygen carrier?

Which of these forces holds the two complementary strands of DNA together?

Which of these is \are not a common monosaccharide(s)? I. Glucose II. Fructose III. Sucrose

Which of these molecules is not a lipid?

Choose the correct complementary DNA strand for TGTACG?

Which of these molecules is the primary means for short-term energy storage?

Which of these quaternary interactions occur between nonpolar R groups?

Which of these is not a base found in DNA?

Which of these interactions are not characteristic of quaternary and tertiary protein structures?

Which vitamin is not a lipid?

Which of these forces hold the secondary structure of a protein together?

Classify this structure.

Which of these saturated fatty acids can only be acquired from peanuts?

Which of these statements about lipids is incorrect ?

Which of these is not an amino acid?

Molecular Reasons

The Chemists Toolbox

Atoms and Elements

Molecules, Compounds, and Chemical Reactions

Chemical Bonding

Organic Chemistry

Light and Color

Nuclear Chemistry

Energy for Today

Energy for Tomorrow: Solar and Other Renewable Energy Sources

The Air Around Us

The Liquids and Solids Around Us: Especially Water

Acids and Bases: the Molecules Responsible for Sour and Bitter

Oxidation and Reduction

The Chemistry of Household Products

Drugs and Medicine: Healing, Helping, and Hurting

The Chemistry of Food

Nanotechnology

Filters