Homeostasis

Question 1

What is Homeostasis?

Answer 1

The process of keeping the environment inside the body constant

Question 2

What does Homeostasis Maintain?

Answer 2

• Core body temperature
• pH concentration
• Concentration of glucose
• Concentration of oxygen and CO2
• Blood pressure
• Concentration of metabolic wastes

Question 3

What is it meant by a Dynamic Equilibrium?

Answer 3

When there are fluctuations around a normal level

Question 4

What does Positive Feedback refer to?

Answer 4

• Response is reinforced or intensified which results in a greater response eg child birth - oxytocin
• No effect on homeostasis

Question 5

What is Negative Feedback?

Answer 5

Negative feedback has the effect of reducing or eliminating the stimulus caused

Question 6

What is the difference between Negative and Positive Feedback?

Answer 6

Negative feedback has the effect of reducing or eliminating the stimulus that caused where as positive feedback reinforces and intensifies the stimulus e.g. oxytocin in childbirth