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Upper GI > Enzymes > Flashcards

Enzymes Flashcards

1
Q

Outline the 4 parts to a protein structure

A

Primary- order of AA
Secondary- folding of the polypeptide. Alpha helix/Beta pleated sheet
Tertiary- the 3D structure of the protein. Globular/Fibrous
Quaternary- addition of another polypeptide chain/group

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2
Q

Role of KINASES

A

Add phosphate

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3
Q

Role of OXIDASES

A

Add oxygen

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4
Q

Role of DEHYDROGENASES

A

Remove hydrogen

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5
Q

Role of ATPases

A

Split ATP

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6
Q

Role of ANHYDRASES

A

Remove water

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7
Q

Salivary AMYLASE

A

Secreted by the salivary glands
Initiates digestion of STARCH
Active on the substrate through the oesophagus
pH 6-7

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8
Q

Products due to the action of SALIVARY AMYLASE

A

Alpha Dextrins
Maltose
Maltotriose

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9
Q

LINGUAL LIPASE

A

Secreted from the sublingual glands
Secreted in an inactive form
pH 1-2

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10
Q

Breakdown that occurs due to LINGUAL LIPASE

A

Triglycerides break down to produce diglycerides or glycerol and fatty acids

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11
Q

GASTRIC LIPASE

A

Secreted into the stomach

pH 5-6

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12
Q

Products due to the action of GASTRIC LIPASE

A

Glycerol and fatty acids produced from triglycerides

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13
Q

PEPSINOGEN

A

Secreted by chief cells

Inactive form of Pepsin

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14
Q

Role of PEPSIN

A

Hydrolyses peptide bond between L-amino acids, Tyrosine and Phenylalanine

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15
Q

4 carbohydrate digesting enzymes within the BRUSH BORDER

A

Maltase
Lactase
Sucrase
Alpha Dextrinase

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16
Q

2 protein digesting enzymes within the BRUSH BORDER

A

Aminopeptidase

Dipeptidase

17
Q

2 nucleotide digesting enzymes within the BRUSH BORDER

A

Nucleosidases

Phosphatases

18
Q

TRYPSINOGEN

A

Inactive form of trypsin

19
Q

Molecules that TRYPSIN acts on

A

Chymotrypsinogen
Procarboxypeptidase
Proelastane

Upper GI (7 decks)

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