Biotechnology and Genetic Engineering
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Biotechnology and yeast
SubtopicBiotechnology and yeast under Biotechnology and Genetic Engineering for Grade 11 IGCSE.
Preview questions (no answers)
- 1.
Biological washing powders contain enzymes to help remove stains. Which enzyme is most effective at removing a butter or oil stain?
A.Lipase
B.Protease
C.Cellulase
D.Pectinase
- 2.
Which enzyme is used in the food industry to break down the substances in plant cell walls, helping to produce clear fruit juices?
A.Amylase
B.Pectinase
C.Lipase
D.Protease
- 3.
In the process of bread making, which gas is produced by yeast that causes the dough to expand and rise?
A.Oxygen
B.Carbon dioxide
C.Nitrogen
D.Methane
Download the worksheet for Biotechnology and Genetic Engineering - Biotechnology and yeast to practice offline. It includes additional chapter-level practice questions.
Genetic engineering
SubtopicGenetic engineering under Biotechnology and Genetic Engineering for Grade 11 IGCSE.
Preview questions (no answers)
- 1.
In the production of human insulin, what is the role of DNA ligase?
A.To cut the insulin gene out of human DNA
B.To identify the correct plasmid in the bacteria
C.To join the human insulin gene to the bacterial plasmid DNA
D.To trigger the bacteria to divide rapidly
- 2.
Which enzyme is specifically used to 'cut' DNA molecules at specific base sequences?
A.DNA ligase
B.Protease
C.Restriction enzyme
D.Amylase
- 3.
Which component acts as a 'vector' to carry a human gene into a bacterial cell during genetic engineering?
A.A ribosome
B.A mitochondrion
C.A plasmid
D.A chloroplast
Download the worksheet for Biotechnology and Genetic Engineering - Genetic engineering to practice offline. It includes additional chapter-level practice questions.