GCSE Biology Specification

OCR A J247

Section B6.2: Feeding the human race

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#B6.2a

describe some of the biological factors affecting levels of food security

increasing human population, changing diets in wealthier populations, new pests and pathogens, environmental change, sustainability and cost of agricultural inputs

#B6.2b

describe and explain some possible agricultural solutions to the demands of the growing human population

increased use of hydroponics, biological control, gene technology, fertilisers and pesticides

#B6.2c

explain the impact of the selective breeding of food plants and domesticated animals

#B6.2d

describe genetic engineering as a process which involves modifying the genome of an organism to introduce desirable characteristics

#B6.2e

describe the main steps in the process of genetic engineering

restriction enzymes, sticky ends, vectors e.g. plasmids, ligase, host bacteria and selection using antibiotic resistance markers

#B6.2f

explain some of the possible benefits and risks of using gene technology in modern agriculture

practical and ethical considerations

#B6.2g

describe and explain some possible biotechnological solutions to the demands of the growing human population

genetic modification