Amino Acids Worksheet

Amino acids are the building blocks of:

• Carbohydrates

• Lipids

• Proteins

• Nucleic acids

The general structure of an amino acid consists of a central carbon atom called:

• Beta carbon

• Alpha carbon

• Gamma carbon

• Delta carbon

In amino acids, the amino group is represented as:

• –COOH

• –NH₂

• –OH

• –CHO

Which of the following is an essential amino acid?

• Glycine

• Leucine

• Alanine

• Serine

Non-essential amino acids are those that:

• Must be taken through diet

• Are toxic in nature

• Can be synthesized by the body

• Are present only in plants

Which of the following contains a sulfur atom?

• Valine

• Methionine

• Glycine

• Lysine

The simplest amino acid is:

• Valine

• Glycine

• Histidine

• Proline

Aromatic amino acids include:

• Lysine, Arginine, Histidine

• Phenylalanine, Tyrosine, Tryptophan

Amino acids that carry a positive charge at physiological pH are:

• Non-polar amino acids

• Acidic amino acids

• Basic amino acids

• Aromatic amino acids

The pH at which an amino acid carries no net charge is called:

• pH meter

• Isoelectric point

• Equilibrium constant

• Dissociation point