Homeostasis and Plant Responses Quiz

What is homeostasis?

• The maintenance of a constant internal environment

• The breakdown of glucose for energy

• The release of hormones from glands

• The process of respiration in cells

Why is homeostasis important?

• It increases body temperature permanently

• It allows cells and organs to function properly

• It produces oxygen in the body

• It ensures constant hormone production

What is negative feedback in homeostasis?

• A mechanism that increases changes from a set point

• A mechanism that reverses changes from a set point

• A process where enzymes break down food

• A reaction that only occurs in plants

What happens if a body condition goes above the set point in a negative feedback system?

• The control system works to increase it further

• The control system works to decrease it back to normal

• The body stops responding to stimuli

• The control system speeds up metabolic activity permanently

What is the set point for normal human body temperature?

• 25°C

• 30°C

• 37°C

• 40°C

If blood glucose levels are too high, what hormone is released?

• Glucagon

• Insulin

• Adrenaline

• Oestrogen

What does insulin do?

• Increases blood glucose levels

• Converts glycogen into glucose

• Stimulates the liver to store glucose as glycogen

• Causes muscle contractions

If blood glucose levels drop too low, which hormone is released?

• Insulin

• Adrenaline

• Glucagon

• Thyroxine

What is the function of glucagon?

• Increases blood glucose levels by breaking down glycogen

• Decreases blood glucose levels by converting glucose to glycogen

• Lowers body temperature

• Increases insulin production

What is the main problem in Type 1 Diabetes?

• The pancreas does not produce insulin

• The pancreas produces too much insulin

• Blood glucose levels are always too low

• The liver stops breaking down glycogen