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When a neurone is at rest, the outside of the neurone is more positive than the inside. This is due to the sodium-potassium pump which actively pumps 3 Na+ outside the cell, whilst at the same time pum...
Enzymes are biological catalysts that are formed from globular proteins.
Active site is the molecule surface space where the substrate binds and catalysi...
Amylase (Salivary amylase) Source: salivary glands in the mouth Substrate: starch Products: maltose Optimum pH: 4.6-5.2
Protease (pepsin)<...
Mechanical digestion breaks down large food particles into smaller ones, increasing the surface are to volume ratio. However, polymers present in food particles require a very long time to break down a...
Proteins can function as
1. Biological Catalysts: enzymes that decrease the activation energy of a reaction and facilitate the progression of chemical reactions
2. Hormones...
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