4.1 Enzyme Action Flashcards

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1
Q

Anabolic

A

Growth reactions, building up

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2
Q

Catabolic

A

Breaking down reactions

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3
Q

Activation energy

A

Energy needed to be supplied for most reactions to start

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4
Q

Lock and key hypothesis

A

Substrate fits into an enzyme, decreasing distance between atom groups

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5
Q

Active site

A

Area of enzyme complementary to specific substrate molecule

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6
Q

Enzyme-substrate complex

A

When substrate is bound to the active site

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7
Q

Enzyme product complex

A

When the substrate reacts and the product is formed. Product is then released, leaving enzyme unchanged and the cycle continues

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8
Q

Induced-fit hypothesis

A

Suggests the active sits of enzyme changes shape slightly as substrate enters. Modified version of lock and key hypothesis

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9
Q

Intracellular enzyme

A

Enzyme that acts within cells

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10
Q

Extracellular Enzyme

A

Enzymes released from cells to break down large nutrient molecules in process of digestion

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11
Q

Amylase

A

Breaks starch polymers into maltose, produced in salivary glands and pancreas

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12
Q

Maltase

A

Breaks maltose into glucose, present in the small intestine

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13
Q

Trypsin

A

Protease, enzyme that catalyses digestion of proteins into smaller peptides, which are then broken down into amino acids by other proteases

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