B3.23 Flashcards
0
Q
How is invertase produced
A
Cultivating a yeast called saccharomyces cerevisae
1
Q
Enzyme widely used for food manufacture
A
Invertase/sucrase
2
Q
What does invertase do
A
Breaks sucrose into glucose and fructose
3
Q
What enzymes are in washing powder and why
A
Protease- break down foods/haemoglobin in blood
Lipase- food/grease
4
Q
Enzyme for cheese making
A
Chymosin
5
Q
How is most chymosin made
A
GENETIC MODIFICATION -Removed chymosing gene from calves, placed in bacteria
6
Q
What dos making a GMO use
A
Recombinant DNA tech
7
Q
How is human DNA cut
A
Restriction enzymes
8
Q
What does cut DNA have
A
“Sticky ends”
9
Q
Where is DNA with stick ends placed
A
In a plasmid
10
Q
What seals DNA into plasmid DNA
A
DNA Ligase (enzyme)
