1_B2 .5 proteins - their functions

1. 1what are proteins made from

   1. ARibosomes
   2. Bmitochondria
2. 2what is a catalyst?

   1. Aincreases the rate of a chemical reaction with out being involved
   2. Bdecreases the rate of a chemical reaction
3. 3Which enzymes catalyses the breakdown of proteins into amino acids

   1. Aproteases
   2. Blipase
4. 4What is bile and where is it made

   1. Aa strong alkali that neutralises stomach acid ( hydraulic acid) . Bile is made in the liver and stored in the gall bladder
   2. Ba strong acid that neutralise stomach acid. it is made in the bladder
5. 5bile is released into the small intestine

   1. ATrue
   2. BFalse
6. 6lipase catalyst is used to breakdown [blank_start]fats[blank_end] into [blank_start]fatty acids[blank_end] and [blank_start]glycerol[blank_end]

   1. Afats
   2. Bfatty acids
   3. Cglycerol
7. 7Lipases is produced in the small intestine and pancreas

   1. ATrue
   2. BFalse
8. 8protease enzymes are produced in the [blank_start]stomach[blank_end], p[blank_start]ancreas[blank_end] and [blank_start]small[blank_end] intestine

   1. Astomach
   2. Bancreas
   3. Csmall
9. 9How do enzymes work?
   they are produced by [blank_start]specialised[blank_end] cells in the [blank_start]glands[blank_end] and in the lining of the gut. Enzymes pass out of the cells and into the gut. When they come into contact with food molecules, they catalyse the breakdown of [blank_start]large[blank_end] molecules into [blank_start]small[blank_end] molecules

   1. Aspecialised
   2. Bglands
   3. Clarge
   4. Dsmall
10. 10Amylase breaks down starch into sugars. It is produced in the salivary glands, pancreas and small intestine

    1. ATrue
    2. BFalse

11. 11biological detergents contain p[blank_start]roteases[blank_end] and l[blank_start]ipases[blank_end]

    1. Aroteases
    2. Bipases
12. 12What uses do enzymes have in industry

    1. Ababy foods - proteases pre digest proteins
    2. Bsugar syrup - carbohydrases converts starch into sugar syrup
    3. Cfructose syrup in slimming food - isomerase converts glucose into fructose - fructose is sweeter than glucose, less in needed fewer calories
    4. Dmakes carrots orange
13. 13what is the advantage of using enzymes in industry

    1. Aallows reactions to take place at normal temps and pressures
       which reduces the cost and energy needed
    2. Bthey felt like it they got bored of the old work
14. 14what is the disadvantage of using enzymes in industry

    1. Acan denature at high temperatures
    2. Bcan explode
    3. Ccan be expensive to produce
15. 15Enzymes and washing powder:
    most effective at [blank_start]lower[blank_end] temperatures than other detergents
    so [blank_start]less fossil[blank_end] duels used to generate elecitrity -> f[blank_start]ewer[blank_end] carbon emissions

    1. Alower
    2. Bless fossil
    3. Cewer
16. 16Ph effects enzymes activity and different enzymes need different PH values

    1. ATrue
    2. BFalse
17. 17The stomach produces [blank_start]hydrochloric acid[blank_end]. Enzymes in the stomach work most effectively in these conditions

    1. Ahydrochloric acid
18. 18protein molecules are made up of

    1. Aamino acids
    2. Bglycogen
19. 19what is an enzyme?
    a [blank_start]protein[blank_end] and [blank_start]biological catalyst[blank_end], which increases the rate of reaction

    1. Aprotein
    2. Bbiological catalyst
20. 20The wrong ph. can change the shape of the enzymes active site

    1. ATrue
    2. BFalse

Description

biology

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katie-diving

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