Key Terms: What is Homeostasis? Maintaining Homeostasis Ph levels Homeostasis in single celled organisms Regulating Water Levels Feedback mechanisms

Homeostasis

An organism's ability to maintain a stable internal environment.

What does 'homeo' and 'stasis' mean in the context of homeostasis?

'Homeo' means same and 'stasis' means balance.

What is the significance of homeostasis?

If conditions are thrown off and there is no homeostasis, it could cause disease and death.

How does sweating help maintain homeostasis?

Sweating cools the body through a process called evaporative cooling.

How does shivering contribute to homeostasis?

Shivering helps warm the body.

What does a low pH level indicate?

It indicates that the solution is too acidic.

What is the safe pH range for human blood?

The safe pH level for human blood is 7.35-7.45.

How do kidneys help maintain pH balance?

Kidneys help maintain a safe pH level by disposing of toxins in the form of urine.

What happens if kidneys fail regarding pH levels?

If the kidneys fail, the pH level could become dangerous.

What organelle do Paramecia use to maintain homeostasis?

Paramecia use a contractile vacuole to collect and expel excess water.

What role do feedback mechanisms play in homeostasis?

Feedback mechanisms are internal systems that help an organism stay within its healthy range.

What happens when the human brain detects thirst?

The brain sends a signal to drink water.

How do plants manage water when needed?

Plant roots collect water from the soil, and when water is scarce, they close up to conserve it.

How does the heart respond to muscles needing more oxygen?

The heart rate increases to supply more oxygen.