AQA A LEVEL BIOLOGY PAPER 1 ACTUAL
QUESTIONS WITH VERIFIED SOLUTIONS
◉ 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
◉ what is meant by 'secondary sequence' of a protein.
Answer: The way in which the primary structure of a polypeptide
chain folds e.g. alpha helix or beta pleated sheets. shape is held by H
bonds.
◉ what is meant by 'tertiary sequence' of a protein.
Answer: This is the overall 3-D structure of the protein.
QUESTIONS WITH VERIFIED SOLUTIONS
◉ 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
◉ what is meant by 'secondary sequence' of a protein.
Answer: The way in which the primary structure of a polypeptide
chain folds e.g. alpha helix or beta pleated sheets. shape is held by H
bonds.
◉ what is meant by 'tertiary sequence' of a protein.
Answer: This is the overall 3-D structure of the protein.
