Construct and interpret simple food chains
Construct and interpret simple food chains
1 Answer
Questions and Answers
Describe the flow of energy through food chains and webs including energy from light and energy in living organisms and its eventual transfer to the environment
Describe the flow of energy through food chains and webs including energy from light and energy in living organisms and its eventual transfer to the environment
1 Answer
Explain why most forms of life are completely dependent on photosynthesis
Explain why most forms of life are completely dependent on photosynthesis
1 Answer
Describe that the Sun is the principal source of energy input to most biological systems
Describe that the Sun is the principal source of energy input to most biological systems
1 Answer
Discuss potential advantages and risks of genetic modification, limited to modifying crop plants and bacteria
Discuss potential advantages and risks of genetic modification, limited to modifying crop plants and bacteria
1 Answer
Outline the use of genetic modification in crop plants by inserting genes: (a) to confer resistance to herbicides (b) to confer resistance to insect pests (c) to provide additional vitamins
Outline the use of genetic modification in crop plants by inserting genes: (a) to confer resistance to herbicides (b) to confer resistance to insect pests (c) to provide additional vitamins
1 Answer
Explain that the gene that controls the production of human insulin has been inserted into bacterial DNA, for commercial production of insulin
Explain that the gene that controls the production of human insulin has been inserted into bacterial DNA, for commercial production of insulin
1 Answer
Describe genetic modification as changing the genetic material of an organism by removing, changing or inserting individual genes
Describe genetic modification as changing the genetic material of an organism by removing, changing or inserting individual genes
1 Answer
Describe the use of: (a) enzymes in biological washing powders (b) pectinase for fruit juice production (c) lactase for lactose-free milk
Describe the use of: (a) enzymes in biological washing powders (b) pectinase for fruit juice production (c) lactase for lactose-free milk
1 Answer
Describe how fermenters can be used for the large-scale production of useful products by bacteria and fungi, including the conditions that need to be controlled, limited to: temperature, pH, oxygen, nutrient supply and waste products
Describe how fermenters can be used for the large-scale production of useful products by bacteria and fungi, including the conditions that need to be controlled, limited to: temperature, pH, oxygen, nutrient supply and waste products
1 Answer
Quiz Leaderboard
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Sourav
Score: 90%
Questions: 20
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Score: 90%
Questions: 10
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Questions: 20
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Total Questions 2747
Top Questions
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Discuss the advantages and disadvantages of genetically modifying crops, including soya, maize and rice
Genetically modified (GM) crops, such as soybeans, maize, and rice,
Sourav
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Outline the process of genetic modification using bacterial production of a human protein as an example, limited to: (a) isolation of the DNA making up a human gene using restriction enzymes, forming sticky ends (b) cutting of bacterial plasmid DNA with the same restriction enzymes, forming complementary sticky ends (c) insertion of human DNA into bacterial plasmid DNA using DNA ligase to form a recombinant plasmid (d) insertion of recombinant plasmids into bacteria (specific details are not required) (e) multiplication of bacteria containing recombinant plasmids (f) expression in bacteria of the human gene to make the human protein
<h2 class="mb-2 mt-6 text-lg first:mt-3">Process of Genetic Modification Using Bacterial
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Outline examples of genetic modification: (a) the insertion of human genes into bacteria to produce human proteins (b) the insertion of genes into crop plants to confer resistance to herbicides (c) the insertion of genes into crop plants to confer resistance to insect pests (d) the insertion of genes into crop plants to improve nutritional qualities
<h2 class="mb-2 mt-6 text-lg first:mt-3">Examples of Genetic Modification</h2> Genetic modification involves
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Describe genetic modification as changing the genetic material of an organism by removing, changing or inserting individual genes
Genetic modification (GM) refers to the deliberate alteration of an
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Describe and explain the conditions that need to be controlled in a fermenter, including: temperature, pH, oxygen, nutrient supply and waste products
<h2 class="mb-2 mt-6 text-lg first:mt-3">Conditions to Control in a Fermenter</h2> Fermenters
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Describe how fermenters can be used for the large-scale production of useful products by bacteria and fungi, including insulin, penicillin and mycoprotein
<h2 class="mb-2 mt-6 text-lg first:mt-3">The Use of Fermenters for Large-Scale
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Explain the use of lactase to produce lactosefree milk
<h2 class="mb-2 mt-6 text-lg first:mt-3">The Use of Lactase to Produce
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