Homeostasis - Living Environment

Front

What is homeostasis?

Back

Homeostasis is the process by which living organisms maintain a stable internal environment despite changes in external conditions.

Front

List the levels of organization in living organisms from smallest to largest.

Back

The levels of organization are: cell, tissue, organ, organ system, organism.

Front

What is the role of the muscular system in the body?

Back

The muscular system allows for movement of the body by contracting and relaxing muscles.

Front

What hormone is released to lower blood glucose levels?

Back

Glucagon is released to raise blood glucose levels, while insulin is released to lower them.

Front

Which system is responsible for transporting oxygen to cells?

Back

The circulatory system is responsible for transporting oxygen to cells.

Front

What is the function of the respiratory system?

Back

The respiratory system is responsible for taking in oxygen and expelling carbon dioxide.

Front

What are the two main types of feedback mechanisms in homeostasis?

Back

The two main types of feedback mechanisms are negative feedback and positive feedback.

Front

Give an example of negative feedback in the human body.

Back

An example of negative feedback is the regulation of body temperature; when the body temperature rises, mechanisms are activated to cool it down.

Front

What is the significance of insulin in blood sugar regulation?

Back

Insulin helps lower blood sugar levels by facilitating the uptake of glucose into cells.

Front

What is the role of the excretory system?

Back

The excretory system removes waste products from the body and regulates water and electrolyte balance.