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B5: Quiz 1
B5: Quiz 1
1)
a) What is homeostasis?
b) Give two conditions that need to be kept constant in the body.
c) Why do the internal conditions of the body need to be kept constant?
2) There are many automatic control systems in the body. Automatic control systems comprise of 3 parts, which are effectors, receptors and coordination centres. Place these 3 parts in order for an automatic control system bringing about a response.
3)
a) What is a negative feedback system?
b) On the graph below, draw the negative feedback graph for the internal temperature of the body against time.
a) What is homeostasis?
b) Give two conditions that need to be kept constant in the body.
c) Why do the internal conditions of the body need to be kept constant?
2) There are many automatic control systems in the body. Automatic control systems comprise of 3 parts, which are effectors, receptors and coordination centres. Place these 3 parts in order for an automatic control system bringing about a response.
3)
a) What is a negative feedback system?
b) On the graph below, draw the negative feedback graph for the internal temperature of the body against time.
c) The temperature of an individual becomes too high. With reference to the effectors, receptors and coordination centres, talk about how the automatic control system brings the temperature back down to the normal/ optimal level. (You do not need to talk about what actually happens when we become too hot, such as sweeting, vasodilating etc)