Lesson 4.7.3.4
4.7.3.4 DNA (deoxyribonucleic acid) and other naturally occurring polymers Quiz: AQA Chemistry, Unit 7
20 questions
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Lesson 4.7.3.4, DNA (deoxyribonucleic acid) and other naturally occurring polymers: 20 multiple choice questions for the AQA GCSE Chemistry (8462), Unit 7: Organic chemistry, written with Revision Ninja.
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The 20 questions
-
What crucial biological information is encoded by DNA molecules?
- Mineral concentrations
- Cellular energy levels
- Structural carbohydrate types
- Genetic instructions
-
How many polymer chains make up most DNA molecules?
- One
- Two
- Four
- Three
-
What shape does DNA form?
- A flat sheet
- A cube
- A double helix
- A single straight chain
-
How many different monomers are used to make DNA?
- Four
- Two
- Twenty
- Three
-
What are the monomers of DNA called?
- Monosaccharides
- Alkenes
- Nucleotides
- Amino acids
-
Which natural polymer is made from nucleotide monomers?
- Proteins
- DNA
- Cellulose
- Starch
-
What are the monomers of starch and cellulose?
- Glucose units
- Carboxylic acids
- Amino acids
- Nucleotides
-
Which naturally occurring polymer besides DNA is important for life?
- Poly(ethene)
- Proteins
- Nylon
- Polyester
-
What type of substance is DNA classified as in living organisms?
- A synthetic plastic
- A natural polymer
- A simple monomer
- A transition metal
-
What are the monomer units that make up DNA molecules?
- Nucleotides
- Fatty acids
- Amino acids
- Glucose
-
Which of these is a naturally occurring polymer?
- Nylon
- Poly(propene)
- Polyester
- Cellulose
-
What type of monomers are joined together to form proteins?
- Sugars
- Alkenes
- Amino acids
- Nucleotides
-
What type of chemical bonds hold the two strands of a DNA double helix together?
- Covalent bonds
- Ionic bonds
- Metallic bonds
- Hydrogen bonds
-
Each strand of a DNA molecule is built from which monomers?
- Nucleotide monomers
- Ethene monomers
- Amino acid monomers
- Metal ions
-
Which monomer forms the polymer that carries genetic instructions?
- Amino acids
- Nucleotides
- Glucose only
- Alkenes
-
What term describes large molecules built from many small repeating units?
- Monomers
- Isomers
- Allotropes
- Polymers
-
What is the three-dimensional shape of most DNA molecules?
- Double helix
- Branched chain
- Single ring
- Giant lattice
-
What feature of DNA allows it to encode genetic instructions?
- Carbon mass
- Hydrogen bonding
- Nucleotide sequence
- Helix length
-
What type of chemical reaction links monomers to form polymers?
- Displacement
- Neutralisation
- Polymerisation
- Thermal decomposition
-
What term describes the small individual molecules that join to make polymers?
- Solvents
- Catalysts
- Monomers
- Reactants
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