Free Printable Amino acids and protiens

Worksheets

Amino acids and protiens

Total questions: 20

Worksheet time: 7mins

Name

Class

Date

The bond that joins amino acids are called:

Peptide Bonds

Ester Bonds

Glycosidic Linkages

Phosphodiester Bonds

If a methyl group (-CH₃), which does not like water, were at the 'R', the amino acid would likely be:

Hydrophobic

Hydrophilic

Ionic

Acidic

The diagram shows a bond forming between two amino acids. What is the name of this reaction?

Dehydration Synthesis

Hydrolysis

Pepysis

Oxidation

Amino acids all have the same general structure except for the:

Amino Group

Carboxyl Group

'R' Group

Carbonyl Group

The reaction used to digest and break the bond in red is:

Hydrolysis

Dehydration Synthesis

Oxidation

Single Displacement

The primary sequence of a protein refers to the:

Order of amino acids

α-Helix or β-Pleated Sheet

Interaction of subunits

Hydrogen Bonding

Structures like an α-Helix are formed because of:

Hydrophobic Interactions

DiSulphide Bridges

Salt Bridges

Hydrogen Bonding

The number of amino acids used to produce proteins for all living things is:

∞

The amino acid isomer that is used to produce the proteins of all living things is the

L-Isomer

D-Isomer

α-Isomer

β-Isomer

10.

The amino acid that results in disulphide bridges is:

Cysteine

Alanine

Glutamic Acid

Valine

11.

The structure of proteins can be changed by environmental factors such as temperature or pH.

True

False

12.

The sequence of amino acids is determined by:

Genes

Hydrogen Bonds

Like Dissolves Like

13.

Are these statements about amino acids true or false?

In the solid state amino acids exists as zwitterions

true

false

14.

Are these statements about amino acids true or false?

Peptide links can undergo hydrolysis by reflux with hydrochloric acid

true

false

15.

Which of these structures is a zwitterion?

16.

What's the correct definition of these keywords?

zwitterions

Amino acid molecules with a negative charge on the amine group in the form of COO- and a positive charge on the carboxylic acid group in the form of NH3+

Amino acid molecules with a positive charge on the amine group in the form of NH3+ and a negative charge on the carboxylic acid group in the form of COO-

Amino acid molecules with a negative charge on the amine group in the form of NH3- and a positive charge on the carboxylic acid group in the form of COO+

17.