
Gaugher disease--special enzyme missing
glucocerebroside build up in organs
Genetic engineering
Changing the genetic material of an
organism by removing, changing, or
inserting individual genes

Resistant to herbicide: Glyphosate

Cotton plants containing Bt-toxic to
insects

Golden Rice (high Vitamin A content)

Biotechnology: using living organisms to carry out
processes that make substances that we want.

yeast--alcohol and bread

bacteria--yoghurt and cheese

It is used widely in food industry and our daily life.

Proteases break down the coloured, insoluble proteins that
cause stains to smaller, colourless soluble polypeptides.
haemoglobin----------------smaller molecules
( red colour)
(colourless)
(Insoluble protein)
(soluble)

Pectinase break down pectin and
enable greater juice extraction, make
clear juice rather than cloudy.

Lactase breaks down lactose in milk
into glucose and galactose.
This makes milk drinkable for lactose
intolerant people.

Lactose-intolerant individuals may tolerate
yogurt

due to the fermentation of lactose to lactic
acid carried out by the bacteria present in
the yogurt.

Isomerase was used in converting glucose
which is not very sweet to fructose, the
most sweet of the natural sugars.