AQA A LEVEL BIOLOGY PAPER 1 2026
CERTIFICATION EVALUATION TEST PAPER
QUESTIONS SOLUTIONS GRADED A PLUS
◉ Sucrose.
Answer: Which disaccharide is not a reducing sugar?
◉ Test for non-reducing sugars.
Answer: Add acid. Neutralise. Add Benedicts. Heat.
◉ Hydrolysis.
Answer: Reaction performed by dilute HCl in the non reducing sugar
test.
◉ Glucose + fructose.
Answer: During the non-reducing sugar test what is sucrose
hydrolysed into?
◉ Alpha.
Answer: Which type of glucose makes up starch?
◉ amylose and amylopectin.
,Answer: Names of two types of starch
◉ Amylose.
Answer: Coiled, compact form of starch. Stored easily.
◉ Amylopectin.
Answer: Branched form of starch. More easily hydrolysed.
◉ surface area.
Answer: Branched carbohydrates have a higher _____ for enzymes to
work on.
◉ Glycogen.
Answer: Carbohydrate store in animals
◉ branched.
Answer: Glycogen is....
◉ metabolic rate.
Answer: Glycogen is more branched than amylopectin because
animals have a higher _____________
,◉ osmotically inactive..
Answer: Starch is insoluble and therefore ....
◉ Beta.
Answer: What type of glucose is cellulose made from?
◉ Alpha and beta glucose.
Answer: H and OH swapped on Carbon 1.
◉ Fibrils.
Answer: Cellulose forms long chains called...
◉ H bonds.
Answer: Cellulose molecules are crosslinked by
◉ strength.
Answer: Cross linking of cellulose molecules gives them...
◉ Triglycerides.
Answer: _______ are a good source of energy because they have a high
ratio of energy-storing carbon-hydrogen bonds
, ◉ what are the roles of lipids?.
Answer: 1. source of energy
2. waterproofing
3. insulation
4. protection
◉ how does the structure of phospholipids relate to their
properties?.
Answer: 1. polar, therefore will position itself to form a bilayer
2. the structure allows them to form glycolipids by combining with
carbohydrates within the cell-surface membrane. these are
important in cell recognition.
◉ draw the structure of an amino acid.
Answer:
◉ draw how a dipeptide forms.
Answer:
◉ what is meant by 'primary sequence' of a protein.
Answer: The unique sequence of amino acids that make up a protein
or polypeptide chain
CERTIFICATION EVALUATION TEST PAPER
QUESTIONS SOLUTIONS GRADED A PLUS
◉ Sucrose.
Answer: Which disaccharide is not a reducing sugar?
◉ Test for non-reducing sugars.
Answer: Add acid. Neutralise. Add Benedicts. Heat.
◉ Hydrolysis.
Answer: Reaction performed by dilute HCl in the non reducing sugar
test.
◉ Glucose + fructose.
Answer: During the non-reducing sugar test what is sucrose
hydrolysed into?
◉ Alpha.
Answer: Which type of glucose makes up starch?
◉ amylose and amylopectin.
,Answer: Names of two types of starch
◉ Amylose.
Answer: Coiled, compact form of starch. Stored easily.
◉ Amylopectin.
Answer: Branched form of starch. More easily hydrolysed.
◉ surface area.
Answer: Branched carbohydrates have a higher _____ for enzymes to
work on.
◉ Glycogen.
Answer: Carbohydrate store in animals
◉ branched.
Answer: Glycogen is....
◉ metabolic rate.
Answer: Glycogen is more branched than amylopectin because
animals have a higher _____________
,◉ osmotically inactive..
Answer: Starch is insoluble and therefore ....
◉ Beta.
Answer: What type of glucose is cellulose made from?
◉ Alpha and beta glucose.
Answer: H and OH swapped on Carbon 1.
◉ Fibrils.
Answer: Cellulose forms long chains called...
◉ H bonds.
Answer: Cellulose molecules are crosslinked by
◉ strength.
Answer: Cross linking of cellulose molecules gives them...
◉ Triglycerides.
Answer: _______ are a good source of energy because they have a high
ratio of energy-storing carbon-hydrogen bonds
, ◉ what are the roles of lipids?.
Answer: 1. source of energy
2. waterproofing
3. insulation
4. protection
◉ how does the structure of phospholipids relate to their
properties?.
Answer: 1. polar, therefore will position itself to form a bilayer
2. the structure allows them to form glycolipids by combining with
carbohydrates within the cell-surface membrane. these are
important in cell recognition.
◉ draw the structure of an amino acid.
Answer:
◉ draw how a dipeptide forms.
Answer:
◉ what is meant by 'primary sequence' of a protein.
Answer: The unique sequence of amino acids that make up a protein
or polypeptide chain
