Over a million students use our free study notes to help them with their homework
A very high temperature makes the enzyme’s molecules vibrate more. This vibration breaks some of the hydrogen and/ or ionic bonds that hold the enzyme in shape. The active site changes shape and the enzym...
First the food is broken down into smaller chunks through the process of mastication. This increases the surface area of the food so enzyme activity is more efficient. The salivary gland secretes salivary...
A competitive inhibitor has a similar shape to the substrate which an enzyme catalyses. Because of this they block the active site of the enzyme (the site on the enzyme that is complementary in shape to a...
Natural selection is all about the 'survival of the fittest' - the organisms which are best suited to their environment are most likely to survive and have offspring, leading to a change in allele frequen...
Increase in temperature:Sweat produced from sweat glands increases energy transfer away from the body when it evaporates.Vasodilation of blood vessels close to the surface of the skin, which increases ene...
←
8
9
10
11
12
→
Internet Safety
Payment Security
Cyber
Essentials
