EASY
AS and A Level
IMPORTANT
Earn 100
Explain why it is important that the internal environment of a mammal is carefully regulated.
Important Questions on Homeostasis
EASY
AS and A Level
IMPORTANT
Explain how the following are involved in maintaining the internal environment of a mammal: stimuli, receptors, coordination systems and effectors.
MEDIUM
AS and A Level
IMPORTANT
Distinguish between the input and the output in a homeostatic control mechanism.
EASY
AS and A Level
IMPORTANT
Uric acid is a nitrogenous waste product, which is produced from the breakdown of purines. What are purines and what are they used for?
EASY
AS and A Level
IMPORTANT
Explain why it is important that carbon dioxide and nitrogenous wastes are excreted and not allowed to accumulate in the body.
EASY
AS and A Level
IMPORTANT
Where has the blood in the capillaries surrounding the proximal convoluted tubule come from?
EASY
AS and A Level
IMPORTANT
What solutes blood contains that are not present in the glomerular filtrate?
EASY
AS and A Level
IMPORTANT
How reabsorption of water from the proximal convoluted tubule takes place?
MEDIUM
AS and A Level
IMPORTANT
State the name of the process by which water is reabsorbed.
