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WorksheetsBiological molecules
Total questions: 25
Worksheet time: 13mins
What elements are present in alpha glucose?
Carbon
Hydrogen
Oxygen
Nitrogen
Sulfur
What elements are always present in amino acids?
Carbon
Hydrogen
Oxygen
Nitrogen
Sulfur
What elements are present in triglycerides?
Carbon
Hydrogen
Oxygen
Nitrogen
Sulfur
What bond is represented by A?
Hydrogen
Glycosidic
Peptide
Disulfide
Ionic
What bond is represented by B?
Hydrogen
Glycosidic
Peptide
Disulfide
Ionic
What bond is represented by C?
Hydrogen
Glycosidic
Peptide
Disulfide
Ionic
What bond is represented by D?
Hydrogen
Glycosidic
Peptide
Disulfide
Ionic
What bond is represented by E?
Hydrogen
Glycosidic
Peptide
Disulfide
Ionic
What type of bonds are present in amylose?
1-6 Glycosidic
1-4 Glycosidic
1-4 & 1-6 glycosidic
Which of these statements are true?
Cellulose is made of beta glucose
Cellulose has a quaternary structure
Cellulose forms straight chains
Hydrogen bonds cross link chains of cellulose together
Which of the following are found in plants?
Amylose
Amylopectin
Glycogen
Cellulose
Which level of protein structure is held by hydrogen bonds only?
Primary
Secondary
Tertiary
Quaternary
Which level of protein structure could contain ionic bonds?
Primary
Secondary
Tertiary
Quaternary
Which level of protein structure could contain peptide bonds only?
Primary
Secondary
Tertiary
Quaternary
Which level of protein structure is the association of two or more polypeptide chains?
Primary
Secondary
Tertiary
Quaternary
Which type of bonds can be broken by both high temperatures and changes in pH?
Hydrogen
Ionic
Disulfide
Hydrophilic interactions
Which statements about collagen are true?
It is a globular protein
It has a quaternary structure
It contains only 3 types of amino acid
It is insoluble
Which of the following statements about haemoglobin are true?
Hydrophobic R groups are on the outside of the molecule to make it soluble
It contains 4 prosthetic groups
It is spherical
It is a globular protein
Triglycerides contain...
Glycerol
Glycogen
3 fatty acids
Ester bonds
The condensation of 3 fatty acids and 1 molecule of glycerol would produce which of the following?
Three molecules of water
Three ester bonds
A phospholipid
An unsaturated fatty acid
Which statements are true for unsaturated fatty acids?
They contain the maximum number of C-H bonds
They contain at least 1 C=C in the hydrocarbon fatty acid tail
They have kinks in their chains
They are only found in animal fats
Which of these is not a role of triglycerides in humans?
Energy store
Metabolic source of water
Protection of organs
Buoyancy
Which of these is not a region found in cholesterol?
Hydrocarbon tail
Ring structure
Hydroxyl group
Polar R group
Which of the following statements about phospholipids is/are incorrect?
They contain 3 ester bonds
They contain glycerol
They contain a phsophate molecule
They contain three fatty acids
Which of the following statements regarding biochemical tests is/are correct?
During the test for non-reducing sugars the test solution is heated with HCl.
The Biuret test requires heating.
When testing for lipids, water is added to the solution first then absolute ethanol.
The reducing sugar rest forms a brick-red emulsion.
