Lesson 3.1.1.1
3.1.1.1 Monomers, polymers, condensation and hydrolysis Quiz: AQA Biology, Unit 1
20 questions
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Lesson 3.1.1.1, Monomers, polymers, condensation and hydrolysis: 20 multiple choice questions for the AQA Biology (7402), Unit 1: Biological molecules, written with Revision Ninja.
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The 20 questions
-
What is the term for a single small unit that joins to form a polymer?
- Monomer
- Polymer
- Dimer
- Isomer
-
Which of the following is a polymer?
- Ribose
- Starch
- Glucose
- Glycerol
-
Which molecule is released when two monomers are joined by a condensation reaction?
- Ammonia
- Water
- Oxygen
- Carbon dioxide
-
What role does a water molecule play in a hydrolysis reaction?
- Breaks a bond
- Acts as catalyst
- Releases energy
- Forms a bond
-
A polysaccharide is broken into individual sugar units when dilute acid is added and the mixture is warmed. Which type of reaction has occurred?
- Reduction
- Condensation
- Hydrolysis
- Oxidation
-
Which disaccharide is produced when two alpha-glucose molecules join in a condensation reaction?
- Sucrose
- Lactose
- Maltose
- Fructose
-
What is a large molecule made from many repeating smaller units joined together called?
- Polymer
- Monomer
- Complex element
- Macroatom
-
A linear chain of 3 monosaccharide units is formed entirely by condensation. How many water molecules are released?
- 3
- 1
- 4
- 2
-
A polypeptide made of 10 amino acids is completely hydrolysed. How many water molecules are used?
- 10
- 11
- 9
- 8
-
A linear strand of 50 nucleotides is formed by condensation. How many phosphodiester bonds does it contain?
- 49
- 51
- 50
- 48
-
Breaking one glycosidic bond in a linear chain of 5 glucose units produces how many molecules?
- Five molecules
- Four molecules
- One molecule
- Two molecules
-
Which type of reaction joins two amino acids together to form a dipeptide?
- Reduction
- Hydrolysis
- Oxidation
- Condensation
-
How does hydrolysis affect the total number of molecules when breaking down starch?
- It stays constant
- It increases
- It reaches zero
- It decreases
-
A student hydrolyses a sample of a polymer built from 6 identical monomers in a linear chain. How many moles of water are used for complete hydrolysis?
- 5
- 6
- 4
- 12
-
What is the total mass of a linear polymer made from 5 glucose units (180 each) formed by condensation?
- 882
- 864
- 900
- 828
-
Mass of maltose (C12H22O11, 342 g/mol) is formed from two glucose molecules (C6H12O6, 180 g/mol). What mass of water is released per mole of maltose formed?
- 18 g
- 9 g
- 36 g
- 342 g
-
Why does the complete hydrolysis of a polymer increase the total mass of the products?
- Water is removed
- Bonds store mass
- Water is added
- Carbon is added
-
Which monomer is the correct building block for the nucleic acid DNA?
- Amino acid
- Alpha-glucose
- Nucleotide
- Fatty acid
-
What reaction breaks the chemical bond between two monosaccharides by adding water?
- Hydrolysis
- Esterification
- Condensation
- Polymerisation
-
Which of these is the monomer from which proteins are made?
- Phosphate group
- Monosaccharide
- Nucleotide
- Amino acid
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