Question
The diagram shows a label found on a container of biological washing powder.
Which stains does the washing powder remove?
▶️Answer/Explanation
Ans C
Question
What is a use of ethanol?
A biofuel production
B biological washing powder
C bread-making
D fruit juice production
▶️Answer/Explanation
Ans A
Question
What is a use of yeast in biotechnology?
A aerobic respiration to make biofuels
B anaerobic respiration to make bread
C aerobic respiration to make alcohol
D anaerobic respiration to make human proteins
▶️Answer/Explanation
Ans B
Question
Which product of anaerobic respiration in yeast is used as a biofuel?
A) carbon dioxide
B) ethanol
C) glucose
D) oxygen
▶️Answer/Explanation
Ans: B