B 7 Revision

Complete these sentences on HOW Bacteria Produce Insulin: -

1) P______ removed from bacteria

2) Insulin gene removed from h____ c_________ using a restriction e_____

3) P______ is cut open using a restriction e_____

4) P______ and human insulin gene are m____ together

5) L_____ (enzyme) joins plasmid and gene

6) R__________ DNA is inserted into bacterium

7) Insulin can be h________

MYCOPROTEIN makes high protein m___ substances.

Genetic Modification means more n_______(s), resistant to p___(s), which can increase c___ y____.

Food Security is having e_____ food to feed a p_________.

Sustainable Production is making enough food without using r_______(s) faster than they r____. This is more efficient because it limits m_______. Reduces e_____ transfer to environment.

More energy for g_____ = More f___.

Complete these sentences on Biomass Transfer...

Energy lost between levels - Organisms don't always e__ every single part of an organism.

They don't a_____ all the stuff in the f___ they ingest.

Biomass is converted to w____ s________(s).

Select 4 things that can occur with FOOD SECURITY...

• Population Increase

• New Pests / Pathogens

• Conflicts

• Environmental Conditions

• Increasing rates of obesity

Complete these sentences on Trophic Levels...

Producers make their own food via p____________(s).

Primary Consumers are h________(s) that eat p_______(s).

Secondary Consumers are c________(s) that eat p______ consumers.

Tertiary Consumers are c________(s) that eat s_________ consumers .

Apex Predators are c________(s) that have no predators and are at the top of the food c____.

Decomposers are b_______ / f____ who decompose any other o_______. They secrete e_____(s) that breaks down the d___ stuff into soluble food molecules.

Complete these sentences on Maintaining Ecosystems...

Breeding programmes - P______ endangered species becoming e______

- Animals bred in captivity then released into the wild to r_-_________ the p_________.

Habitat Protection - Protect and r_________ habitats

Prevent Global Warming - Reduce d____________

Reduce Waste - Reduce l_______ and l___ u____

Complete these questions on Maintaining Ecosystems...

Cost of Programmes - B__________ vs M____

Local Economy - Cost of people's l_________(s)

Food Security - Pests are k_____, so more food is produced, but that affects the f___ c____

Social Development - High d_____ vs High B___________

Peat bogs are areas of land that are a_____ and w__________. This is because plants do not fully d____. Partially r_____ plants build up to form peat.

C_____ is stored in peat. Peat bogs are drained for f_______ / fuel source. Micro Organisms start to fully d________ plants.

Micro Organisms respire meaning more ___.

Peat Bogs reduce b___________.

Tick the correct facts that are true of BIODIVERSITY...

• Less CO2 taken in

• More CO2 in the atmosphere

• Less Biodiversity

• More Biodiversity

• Less CO2 in the atmosphere