WorksheetsChemical Structures of Nutrients Quiz
Total questions: 20
Worksheet time: 11mins
How are glucose molecules linked together in amylose?
Peptide bonds
1-4 glycosidic bonds
Ester bonds
Hydrogen bonds
Which of the following is a monosaccharide?
Sucrose
Glucose
Lactose
Cellulose
What is the primary structure of a protein?
The sequence of amino acids
The folding of the polypeptide chain
The arrangement of multiple polypeptide chains
The interaction with water molecules
Which bond links amino acids together in a protein?
Glycosidic bond
Peptide bond
Ester bond
Disulphide bond
Which of the following is NOT a disaccharide?
Maltose
Sucrose
Fructose
Lactose
What is the main function of cellulose in plants?
Energy storage
Structural support
Enzyme activity
Fat storage
Which of the following is a saturated fatty acid?
Oleic acid
Stearic acid
Linoleic acid
Palmitoleic acid
What is the general formula for a polysaccharide?
(C6H10O5)n
(C6H12O6)n
(C12H22O11)n
(C5H11O5)n
Which part of an amino acid varies to create different amino acids?
Amino group
Carboxyl group
R group (side chain)
Hydrogen atom
When does a condensation reaction occur forming water as a product?
When amino acids join together in a polypeptide
When glucose units join to form polysaccharides
When fatty acids join with glycerol to form a triglyceride
When we break down polypeptide chains through hydrolysis
Which polysaccharide is the main energy storage molecule in plants?
Glycogen
Starch
Cellulose
Chitin
Which of the following is an essential amino acid?
Glycine
Leucine
Alanine
Serine
What is the secondary structure of a protein mainly stabilised by?
Ionic bonds
Hydrogen bonds
Covalent bonds
Metallic bonds
Which of the following is a polysaccharide?
Glucose
Sucrose
Starch
Fructose
A polyunsaturated fatty acid has...
one C=C double bond
Carbons fully saturated with hydrogens
two or more C=C double bonds
A bent structure due to presence of double bonds
What is the tertiary structure of a protein?
The sequence of amino acids
The overall 3D shape of a single polypeptide chain
The arrangement of multiple polypeptide chains
The formation of alpha helices
Which of the following is a function of lipids in the body?
Catalysing reactions
Energy storage
Forming nucleic acids
Carrying oxygen
Fatty acids with a double bond are usually found in the
Cis formation - meaning hydrogens are on the same side of the carbon chain
Cis formation - meaning hydrogens are on the opposite side of the carbon chain
Trans formation - meaning hydrogens are on the same side of the carbon chain
Trans formation - meaning hydrogens are on the opposite side of the carbon chain
What bonds hold proteins in their tertiary structure?
Hydrogen bonds
Disulphide bridges
Glycosidic bond
Ionic bonds
Proteins can be denatured (unravelled and bonds broken) by:
Heat
pH (acid or alkali)
Mechanical action
Light
