Lesson 4.4.2.3
4.4.2.3 Metabolism Quiz: AQA Combined Science, Unit 4
20 questions
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Lesson 4.4.2.3, Metabolism: 20 multiple choice questions for the AQA GCSE Combined Science (8464), Unit 4: Bioenergetics, written with Revision Ninja.
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The 20 questions
-
What is the scientific definition of metabolism?
- All cell reactions
- Only digestion
- Only respiration
- Protein synthesis
-
Which molecule is formed when glucose and nitrate ions are used together?
- Urea molecules
- Fatty acids
- Glycerol molecules
- Amino acids
-
Which molecules combine to form a lipid molecule?
- Glucose and amino acids
- Sugars and nitrates
- Glycerol and fatty acids
- Starch and cellulose
-
Which ions combine with glucose to form amino acids?
- Carbonate ions
- Nitrate ions
- Sulfate ions
- Chloride ions
-
What is formed when excess proteins are broken down?
- Glycogen
- Urea
- Lactic acid
- Cellulose
-
What controls the enzyme-controlled processes of metabolism?
- Nerve fibres only
- Enzymes
- Red blood cells
- Vitamins alone
-
What supplies the energy for metabolic synthesis?
- Digestion alone
- Photosynthesis in animals
- Excretion
- Respiration
-
What are sugars, amino acids, fatty acids and glycerol used to synthesise and break down?
- Vitamins and minerals
- Polymers and lipids
- Nucleic acids only
- Inorganic ions
-
Which pair of components makes up a lipid?
- Glucose and starch
- Glycerol and fatty acids
- Sugars and cellulose
- Amino acids and urea
-
Which product of glucose is used to strengthen plant cells?
- Ethanol
- Urea
- Lactic acid
- Cellulose
-
What happens to excess amino acids in the body?
- Converted to urea
- Converted to cellulose
- Stored as starch
- Excreted as glucose
-
Which process describes converting glucose into a storage carbohydrate?
- Excretion
- Oxidation
- Synthesis
- Respiration
-
Which molecule is the building block of proteins?
- Glucose
- Glycerol
- Fatty acid
- Amino acid
-
What drives the enzyme-controlled processes of metabolism?
- Respiration energy
- Light energy
- Thermal energy
- Kinetic energy
-
Where are specific metabolic aspects covered in detail according to the specification?
- Relevant sections
- Only in chemistry
- Appendix tables
- Online glossary
-
Which metabolic reaction requires nitrate ions?
- Lipid formation
- Urea excretion
- Glucose breakdown
- Amino acid synthesis
-
What role do enzymes play in metabolic reactions?
- Catalyse reactions
- Absorb energy
- Store glucose
- Release urea
-
What substance is formed from the breakdown of excess proteins in the body?
- Form lactic acid
- Form urea
- Form glycogen
- Form glucose
-
What do cells use to synthesise new molecules during metabolism?
- Light energy
- Respiration energy
- Thermal energy
- Kinetic energy
-
Which small molecules combine to form lipid molecules?
- Fatty acids and sugars
- Amino acids and glycerol
- Glucose and nitrate
- Glycerol and fatty acids
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