Many chemical reactions can be speeded up by substances called …
Catalysts
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10
Is it true that some proteins are soluble in water?
True (haemoglobin and keratin)
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10
What is the optimum temperature of the enzymes from the human digestive system?
37 degrees Celcius
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10
Some proteins are soluble in water; an example is …, the red pigment in blood. Others are insoluble in water; for example, … Hair and fingernails are made out of it.
haemoglobin, keratin
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10
Carbohydrates include … and ….
starch and sugar
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10
What is and example of and enzyme that helps to make large molecules from small ones?
starch phosphorylase
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10
If the solution for a biuret test doesn’t contain protein, it remains …
Blue
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Enzymes that catalyse the breakdown of carbohydrates are …
carbohydrases
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10
What is the test for protein called?
Biuret test
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10
What is the formula of a glucose molecule?
C₆H₁₂O₆
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The optimum temperature of enzymes from bacteria can go up to …
As high as 75 degrees celcius
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10
What carbohydrate is usually used in respiration?
Glucose
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The simplest kinds of carbohydrates are the simple sugars AKA ….