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.
Which of these is the stored form of carbohydrate found in yeast cells?
A.Starch
B.Glycogen
C.Cellulose
D.Sucrose
- 2.
Why is it important to sterilize a fermenter before starting a new batch?
A.To make the fermenter shiny
B.To kill any competing bacteria or fungi
C.To remove all traces of water
D.To increase the temperature
- 3.
What type of food molecule is ethanol, the product of yeast fermentation?
A.Carbohydrate
B.Alcohol
C.Protein
D.Fat
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.
Which of the following is an example of a social concern regarding GM organisms?
A.Increased crop yields
B.Ownership of seeds by large corporations
C.Reduction in chemical use
D.Improved food quality
- 2.
In genetic engineering, the gene is 'isolated'. What does this mean?
A.The gene is destroyed
B.The gene is identified and removed from the original DNA
C.The gene is hidden from the bacteria
D.The gene is multiplied by ten
- 3.
How is the temperature usually controlled in large industrial fermenters?
A.By putting them in the sun
B.By using a cooling jacket with circulating water
C.By lighting a fire underneath
D.By adding ice cubes directly to the mixture
Download the worksheet for Biotechnology and Genetic Engineering - Genetic engineering to practice offline. It includes additional chapter-level practice questions.