1 markWhich of the following statements would be the best description of DNA?
DNA is usually single-stranded.
DNA is a polymer of sugar molecules.
Every persons' DNA is unique.
DNA is a chemical molecule that determines the characteristics of living organisms.
Did this page help you?
1 markWhich of the following best describes what an enzyme is?
A catalyst that speeds up reactions in cells, being used up in the process
A protein that speeds up reactions in cells, being used up in the process
A carbohydrate that functions as a biological catalyst
A protein that functions as a biological catalyst
Did this page help you?
1 markWhich graph in the image below shows the correct effect of temperature on the activity of an enzyme?
Did this page help you?
1 markWhich does not contain DNA?
Cell membrane
Chromosome
Nucleus
Plasmid
Did this page help you?
1 markDNA is a polymer.
What is the name of the monomer in DNA?
Base
Deoxyribose sugar
Nucleotide
Phosphate
Did this page help you?
1 markWhich structure most closely resembles DNA?
Did this page help you?
1 markLook at the model of enzyme activity.
Which label represents the active site of an enzyme?
Did this page help you?