Explain the use of lactase to produce lactosefree milk
Explain the use of lactase to produce lactosefree milk
1 Answer
Questions and Answers For
IGCSE Biology
322 Questions
1 AnswerInvestigate and describe the use of biological washing powders that contain enzymes
Investigate and describe the use of biological washing powders that contain enzymes
1 AnswerDescribe the use of pectinase in fruit juice production
Describe the use of pectinase in fruit juice production
1 AnswerDescribe the role of anaerobic respiration in yeast during bread-making
Describe the role of anaerobic respiration in yeast during bread-making
1 AnswerDescribe the role of anaerobic respiration in yeast during the production of ethanol for biofuels
Describe the role of anaerobic respiration in yeast during the production of ethanol for biofuels
1 AnswerDiscuss why bacteria are useful in biotechnology and genetic modification, limited to: (a) few ethical concerns over their manipulation and growth (b) the presence of plasmids
Discuss why bacteria are useful in biotechnology and genetic modification, limited to: (a) few ethical concerns over their manipulation and growth (b) the presence of plasmids
1 AnswerState that bacteria are useful in biotechnology and genetic modification due to their rapid reproduction rate and their ability to make complex molecules
State that bacteria are useful in biotechnology and genetic modification due to their rapid reproduction rate and their ability to make complex molecules
1 AnswerExplain the risks to a species if its population size decreases, reducing genetic variation (knowledge of genetic drift is not required)
Explain the risks to a species if its population size decreases, reducing genetic variation (knowledge of genetic drift is not required)
1 AnswerDescribe the use of artificial insemination (AI) and in vitro fertilisation (IVF) in captive breeding programmes
Describe the use of artificial insemination (AI) and in vitro fertilisation (IVF) in captive breeding programmes
1 AnswerDescribe the reasons for conservation programmes, limited to: (a) maintaining or increasing biodiversity (b) reducing extinction (c) protecting vulnerable ecosystems (d) maintaining ecosystem functions, limited to nutrient cycling and resource provision, including food, drugs, fuel and genes
Describe the reasons for conservation programmes, limited to: (a) maintaining or increasing biodiversity (b) reducing extinction (c) protecting vulnerable ecosystems (d) maintaining ecosystem functions, limited to nutrient cycling and resource provision, including food, drugs, fuel and genes
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