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How does increasing temperature affect the rate of a reaction in the presence of an enzyme.

Initially increasing temperature will increase the rate of reaction. This is because the substrate molecules have greater kinetic energy so there are more frequent collisions with the enzyme/other molecules....
CR
Answered by Cameron R. • Biology tutor
2838 Views

Describe the cardiac cycle, including the role that valves and pressure differences play in this process.

The cardiac cycle can be split into 2 main parts- diastole (relaxation) and systole (contraction). These can be further split into 4 main phases ( atrial systole , atrial diastole , ventricular systole , ven...
HW
Answered by Harvey W. • Biology tutor
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Explain the way in which Anti Diuretic Hormone regulates the water content of blood

How much water is in blood is defined by its osmolarity, i.e. how concentrated solutes such as sodium ions are in the blood. The pituitary gland in the brain releases ADH (Anti Diuretic Hormone) if there is ...
JW
Answered by Jamie W. • Biology tutor
3179 Views

Endocrine glands release hormones, suggest what would happen in the body of a person with hyperthyroidism.

There is too much thyroxine is released into the blood which raises the person's basal metabolic rate. This will lead to an increase in formation of glycogen, lipids and proteins. This will also increase the...
NS
Answered by Nimryta S. • Biology tutor
8625 Views

What exactly is Natural selection?

Natural selection is the concept that individuals in a population that are best adapted to their environment are most likely to survive and succeed to breed and produce offspring. In turn, the offspring will...
JK
Answered by Joel K. • Biology tutor
3247 Views