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Biological molecules

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

What two types of molecules is a triglyceride comprised of?

a)

Glyceride and fatty acid chains

b)

Glucose and peptides

c)

Glycerol and fatty acid chains

d)

Stefan and Damon Salvatore

2.

What is the highest level of protein structure exhibited by a protein that is composed of more than one polypeptide chain

a)

Primary

b)

Secondary

c)

Tertiary

d)

Quaternary

3.

Which of these inorganic ions is found in Haemoglobin

a)

Magnesium

b)

Iron

c)

Nitrate

d)

Phosphate

4.

What type of bond joins Hydrogen atoms to Oxygen atoms within a molecule of water

a)

Covalent

b)

Ionic

c)

Hydrogen

d)

Disulphide

5.

What type of bond forms between different molecules of water

a)

Covalent

b)

Ionic

c)

Hydrogen

d)

Disulphide

6.

What type of bond joins two monosaccharides together to form a disaccharide?

a)

Glucosidic

b)

Glycosidic

c)

Ester

d)

Estree

7.

Which form of glucose is this

a)

Alpha

b)

Beta

8.

What is the test for a reducing sugar?

a)

Biuret

b)

Benedict's

c)

Iodine

d)

Emulsion

9.

Why would sucrose not show a positive result with the Benedict's test?

a)

It's a reducing sugar

b)

It's a protein

c)

It's a non-reducing sugar

d)

It's an enzyme

10.

What subunits is cellulose made up of?

a)

Alpha glucose

b)

Beta glucose

c)

Alpha and Beta glucose

d)

Amylose and amylopectin

11.

What are the secondary structures formed within polypeptides?

a)

Van der waals interactions and cross-linking

b)

Disulphide bridges and ionic bonds

c)

Beta helixes and Alpha pleated sheets

d)

Alpha helixes and Beta pleated sheets

12.

What type of bond is being highlighted here?

a)

Peptide

b)

Ester

c)

Hydrogen

d)

Disulphide

13.

Which type of lipids contain carbon to carbon double bonds

a)

Unsaturated

b)

Saturated

c)

Phospholipids

d)

Lipases

14.

What is the test for lipids?

a)

Biuret

b)

Iodine

c)

Emulsion

d)

Copper (II) Sulphate

15.

What is this?

a)

Carboxyl amine

b)

Amino Acid

c)

Acetyl Acid

d)

Carbohydrate