Question 1

By convention, the C-terminal amino acid is always written at the right end of the peptide chain and the N-terminal amino acid at the left.

Accepted Answer

A) True 
 B)False

Question 2

No one plant source has sufficient amounts of all of the essential amino acids.

Accepted Answer

A) True 
 B)False

Question 3

The lock-and-key model is often used to explain why some enzymes catalyze a wide variety of substrate reactions.

Accepted Answer

A) True 
 B)False

Question 4

Which protein stores O2 in tissues?

Accepted Answer

A) keratin 
B) ferritin 
C) hemoglobin 
D) myoglobin 
A) keratin 
B) ferritin 
C) hemoglobin 
D) myoglobin

Question 5

The enzyme in the ribbon diagram shown is composed primarily of $\beta$-pleated sheets.

Accepted Answer

A) True 
 B)False

Question 6

Hemoglobin, collagen, and myoglobin are all examples of conjugated proteins.

Accepted Answer

A) True 
 B)False

Question 7

Amino acids are the building blocks of the body's proteins. Which statement concerning amino acids is false?

Accepted Answer

A) There are approximately 200 standard amino acids that occur naturally in the proteins of the human body. 
B) Except for when R=H, amino acids are chiral molecules. 
C) The amino acids found in human proteins are "alpha" amino acids. 
D) The properties of amino acids and the proteins they compose are determined by the nature of the side chain groups that are present. 
A) There are approximately 200 standard amino acids that occur naturally in the proteins of the human body. 
B) Except for when R=H, amino acids are chiral molecules. 
C) The amino acids found in human proteins are "alpha" amino acids. 
D) The properties of amino acids and the proteins they compose are determined by the nature of the side chain groups that are present.

Question 8

Amino acids with an additional COOH group in the side chain are classified as acidic amino acids.

Accepted Answer

A) True 
 B)False

By convention, the C-terminal amino acid is always written at the right end of the peptide chain and the N-terminal amino acid at the left.

No one plant source has sufficient amounts of all of the essential amino acids.

The lock-and-key model is often used to explain why some enzymes catalyze a wide variety of substrate reactions.

Which protein stores O₂ in tissues?

The enzyme in the ribbon diagram shown is composed primarily of $\beta$ -pleated sheets. $The enzyme in the ribbon diagram shown is composed primarily of \beta -pleated sheets.$

Hemoglobin, collagen, and myoglobin are all examples of conjugated proteins.

Amino acids are the building blocks of the body's proteins. Which statement concerning amino acids is false?

Amino acids with an additional COOH group in the side chain are classified as acidic amino acids.

Matter and Measurement

Atoms and the Periodic Table

Ionic Compounds

Covalent Compounds

Chemical Reactions

Energy Changes, Reaction Rates, and Equilibrium

Gases, Liquids, and Solids

Solutions

Acids and Bases

Nuclear Chemistry

Introduction to Organic Molecules and Functional Groups

Alkanes

Unsaturated Hydrocarbons

Organic Compounds That Contain Oxygen, Halogen, or Sulfur

The Three-Dimensional Shape of Molecules

Aldehydes and Ketones

Carboxylic Acids, Esters, and Amides

Amines and Neurotransmitters

Lipids

Carbohydrates

Nucleic Acids and Protein Synthesis

Digestion and the Conversion of Food Into Energy

Carbohydrate, Lipid, and Protein Metabolism

Filters

Exam 21: Amino Acids, Proteins, and Enzymes

By convention, the C-terminal amino acid is always written at the right end of the peptide chain and the N-terminal amino acid at the left.

No one plant source has sufficient amounts of all of the essential amino acids.

The lock-and-key model is often used to explain why some enzymes catalyze a wide variety of substrate reactions.

Which protein stores O2 in tissues?

The enzyme in the ribbon diagram shown is composed primarily of β\betaβ -pleated sheets.

Hemoglobin, collagen, and myoglobin are all examples of conjugated proteins.

Amino acids are the building blocks of the body's proteins. Which statement concerning amino acids is false?

Amino acids with an additional COOH group in the side chain are classified as acidic amino acids.

Matter and Measurement

Atoms and the Periodic Table

Ionic Compounds

Covalent Compounds

Chemical Reactions

Energy Changes, Reaction Rates, and Equilibrium

Gases, Liquids, and Solids

Solutions

Acids and Bases

Nuclear Chemistry

Introduction to Organic Molecules and Functional Groups

Alkanes

Unsaturated Hydrocarbons

Organic Compounds That Contain Oxygen, Halogen, or Sulfur

The Three-Dimensional Shape of Molecules

Aldehydes and Ketones

Carboxylic Acids, Esters, and Amides

Amines and Neurotransmitters

Lipids

Carbohydrates

Nucleic Acids and Protein Synthesis

Digestion and the Conversion of Food Into Energy

Carbohydrate, Lipid, and Protein Metabolism

Filters

Which protein stores O₂ in tissues?

The enzyme in the ribbon diagram shown is composed primarily of $\beta$ -pleated sheets. $The enzyme in the ribbon diagram shown is composed primarily of \beta -pleated sheets.$