A news report claims that a gene is a whole chromosome and the genome is the collection of proteins in a cell.
.1
Correct both claims using the relationships between DNA, genes, chromosomes and the genome.
[2 marks]
.2
Suggest two benefits of studying human genomes.
[2 marks]
4 marksFoundation and Higher
Spec and skills
Original practice question
Answer and supported method checks
A transect runs from a shaded wall into a lawn. Mean plant counts per quadrat at 0, 2, 4, 6 and 8 m are 1, 3, 6, 6 and 5 respectively.
.1
Describe the pattern in the data without claiming a cause.
[2 marks]
.2
Explain how to investigate whether light accounts for the pattern.
[2 marks]
4 marksFoundation and Higher
Spec and skills
Original practice question
Answer and supported method checks
Rose leaves develop black spots and fall early. A grower collects fallen leaves, then sprays a fungicide. A neighbour claims that antibiotics would always be a better treatment.
.1
Explain why early leaf loss reduces plant growth.
[2 marks]
.2
Evaluate the treatments described.
[2 marks]
4 marksFoundation and Higher
Spec and skills
Original practice question
Answer and supported method checks
A patient with influenza asks for antibiotics and takes a painkiller to reduce fever.
.1
Explain why antibiotics do not cure influenza and why the painkiller may still help.
[2 marks]
.2
Explain why developing drugs against viruses can be difficult.
[2 marks]
5 marksFoundation and Higher
Spec and skills
Original practice question
Answer and supported method checks
During exercise a patient's heart rate is 120 beats/min and each side pumps 110 cm³ per beat. Cardiac output is the volume pumped by one side per minute.
.1
Calculate cardiac output in dm³/min.
[2 marks]
.2
Explain how increased cardiac output supports exercise.
