14.Quiz on Homeostasis and Thermoregulation

What is homeostasis in biology?

• The ability to maintain a stable internal environment

• The regulation of blood pressure

• The process of cell division

• The method of energy production

What part of the brain monitors body temperature?

• Cerebellum

• Hypothalamus

• Medulla Oblongata

• Cerebrum

What is thermoregulation?

• The process of regulating blood sugar levels

• The ability to maintain a stable body temperature

• The method of oxygen transport in the blood

• The process of digestion

What is the optimum temperature for most body enzymes?

• 30ºC

• 40ºC

• 37ºC

• 25ºC

What happens to enzymes if the temperature increases too much?

• They become inactive

• They multiply

• They denature

• They become more efficient

What are the two types of thermoregulation in animals?

• Endothermy and Ectothermy

• Homeothermy and Poikilothermy

• Aerobic and Anaerobic

• Metabolic and Non-Metabolic

What role does sweat play in thermoregulation?

• It reduces metabolic rate

• It increases blood flow

• It cools the body through evaporation

• It warms the body

What is shivering?

• A process of digestion

• A reflexive response to cold

• A type of muscle relaxation

• A method of cooling the body

What is vasodilation?

• Narrowing of blood vessels

• Widening of blood vessels

• Decrease in body temperature

• Increase in heart rate

What can happen if body temperature regulation fails?

• Enhanced metabolic rate

• Hypothermia or hyperthermia

• Improved enzyme function

• Increased energy levels