Biology Biotechnology Definitions

HideShow resource information

1. Natural vegetative propogation is

  • Refers to the production of structures in an organism that can grow into new individual organisms. These offspring contain the same genetic information as the parent and so are clones of the parent
  • 2) as in plants, mass genetic uniformity makes the species unable to adapt to changes in environment 3) animals may not remain healthy in the long term
  • Ethical objections, and some people think there is a lack of understanding on how these clones will behave over time
1 of 20

Other questions in this quiz

2. Theraputic cloning is not currently allowed to be used as people have

  • 1) enzymes not present with products so downstream processing cost low 2) enzymes are immediately available for reuse 3) immobilised enzymes are more stable as the matrix protects them
  • Ethical objections, and some people think there is a lack of understanding on how these clones will behave over time
  • 2) as in plants, mass genetic uniformity makes the species unable to adapt to changes in environment 3) animals may not remain healthy in the long term

3. The advantages of cloning animals are 1) high value animals eg milky cows can be cloned in large numbers

  • Refers to the separation of cells of any tissue type and their growth in or on a nutrient medium containing plant hormones that stimulate development of the complete plant
  • 2) rare animals can be cloned to preserve species 3) genetically modified animals eg sheep with pharmaceuticals in milk can be quickly reproduced
  • Genes, cells or whole organisms that carry identical genetic material because they are derived from the same original DNA

4. The standard growth curve for a culture of microorganisms is labelled

  • Lag, Log, Stationary, Death
  • 1) immobilisation requires additional time, equipment and materials 2) immobilised enzymes may be less active as they are held separate 3) any contamination is costly as the whole system would need to be stopped
  • A growth of microorganisms, this may be a single species (pure culture) or a mixed species (mixed culture), microorganisms can be cultured in a liquid such as nutrient broth or a solid surface such as nutrient agar gel
  • 1) enzymes not present with products so downstream processing cost low 2) enzymes are immediately available for reuse 3) immobilised enzymes are more stable as the matrix protects them

5. Microorganisms are used in biotechnical industry because 1) they grow rapidly in favourable conditions with a fast generation time some as little as 30 minutes

  • Ethical objections, and some people think there is a lack of understanding on how these clones will behave over time
  • 2) often produce proteins or chemicals that are released into the surrounding medium and can be harvested 3) can be genetically engineered to produce specific chemicals 4) not dependant on climate 5) purer products than those from chemical synthesis
  • 2) as in plants, mass genetic uniformity makes the species unable to adapt to changes in environment 3) animals may not remain healthy in the long term
  • 1) enzymes not present with products so downstream processing cost low 2) enzymes are immediately available for reuse 3) immobilised enzymes are more stable as the matrix protects them

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all Practical applications of biology resources »