Enzymes Flashcards

1
Q

Lock and Key theory by who and when

A

Fischer in 1890

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2
Q

Induced fit theory by who and when

A

Koschland in 1959

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3
Q

Substrate is _____ and enzyme is ____

A

Substrate is lock
Enzyme is key

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4
Q

Prosthetic group

A

Non protein co factor such as metallic ions (Zinc, Copper, Iron)

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5
Q

Coenzymes

A

Cofactors that are small organic molecules
NAD FAD NADP

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6
Q

Lack of vit B produces

A

beriberi

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7
Q

Enzymes of arctic snow flea work at

A

-10°C

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8
Q

Thermophilic bacteria enzymes

A

90°

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9
Q

Lipase (pancreas) optimum pH

A

8.0

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10
Q

Lipase (stomach)

A

4-5

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11
Q

Lipase (castor oil)

A

4.7

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12
Q

Pepsin

A

1.5-1.6

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13
Q

Trypsin

A

7.8-8.7

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14
Q

Urease

A

7.0

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15
Q

Invertase

A

4.5

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16
Q

Maltase

17
Q

Amylase (pancreas)

18
Q

Amylase (malt)

19
Q

Catalase

20
Q

Competitive inhibitor example

A

Sulphonamide

21
Q

Non competitive inhibitors examples

A

cyanide, heavy metal ions, insecticides