Pages in this set

Page 1

Preview of page 1
Biotechnology
Making food and drink

Energy source + microbe products

Making yoghurt:

Energy = lactose
Microbe= lactobacillus and streptococcus
Respiration = anaerobic (w/o oxygen)
Product = lactic acid

1) Milk is pasteurised at 95oC
2) The milk is homogenised (fat droplets are broken down)
3) The milk is cooled at…

Page 2

Preview of page 2
VII. The yeast, Saccharomyces produces the alcohol and flavouring. The pH lowers
as Lactobacillus produces lactic acid.
VIII. A dark brown liquid soya sauce is filtered off and pasteurised.
IX. Place in sterile bottle and you have yourself some soya sauce.



Making mycoprotein

Energy source = any starch or sugar…

Page 3

Preview of page 3
Genetically modifying plants

Agrobacterium tumefaciens as a vector to transfer genes for herbicide reistance to the
genome of a plant cell
Bacillus thurengensis gene inserted to breed insect resistant plant




Figure 1 the process of genetically modifying plants

Drug development

Aspirin

Made form willow bark
Used as a pain killer…

Page 4

Preview of page 4
Figure 2 the industrial production of insulin



Behaviour of humans and other animals
Instinctive or learned behaviour

Instinctive behaviour is controlled by the genes
Learned behaviour: using conditioning
Pavlov's dog
skinner's box
Using habituation = not reacting to insignificant thing
Imprinting ­ is when you learn something from an early…

Page 5

Preview of page 5
Classical conditioning - A learning process that occurs when two stimuli are repeatedly
paired: a response that is at first elicited by the second stimulus is eventually elicited
by the first stimulus alone

Social behaviour and communication

Signals = the bee dance for food
Sound
Facial expression = mammals
Body…

Page 6

Preview of page 6
Reproduction

Monogamy:

Very few animals, mate with the same partner for life. Albatrosses can live to be 80- 85
years old and the mate for life
1) Albatrosses
2) Great crested grebes ­ elaborate courtship display

Polygamous:

Some animals live in groups with a dominant male that mates with all…

Page 7

Preview of page 7

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »