What are plant defense responses, and why are they important?
What are plant defense responses, and why are they important?
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Questions and Answers For
AQA GCSE Biology
237 Questions
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How do magnesium ions contribute to chlorophyll production in plants?
How do magnesium ions contribute to chlorophyll production in plants?
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Why are nitrate ions important for plant growth?
Why are nitrate ions important for plant growth?
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How does nitrate deficiency lead to stunted growth in plants?
How does nitrate deficiency lead to stunted growth in plants?
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What ion deficiencies can affect plants, and what conditions do they cause?
What ion deficiencies can affect plants, and what conditions do they cause?
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How do aphids damage plants, and what type of organisms are they?
How do aphids damage plants, and what type of organisms are they?
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What is black spot disease, and what kind of pathogen causes it?
What is black spot disease, and what kind of pathogen causes it?
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What is tobacco mosaic virus, and what type of pathogen is it?
What is tobacco mosaic virus, and what type of pathogen is it?
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Which plant diseases are caused by viral, bacterial, and fungal pathogens?
Which plant diseases are caused by viral, bacterial, and fungal pathogens?
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What are the common types of pathogens that can infect plants?
What are the common types of pathogens that can infect plants?
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Top Questions
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Discuss the advantages and disadvantages of genetically modifying crops, including soya, 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
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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
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Describe genetic modification as changing the genetic material of an organism by removing, changing or inserting individual genes
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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
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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
