HMH Unit 7.3 Review

Front

What is a hormone?

Back

A chemical made by glands that tells cells to make something or respond in some way.

Front

What is a negative feedback loop?

Back

A process that helps maintain homeostasis by counteracting changes in the body, such as maintaining body temperature.

Front

What happens when the environment gets cold?

Back

The body shivers to increase body temperature.

Front

What hormone is produced in the pancreas that lowers blood sugar?

Back

Insulin.

Front

What are set points in the human body?

Back

Specific levels for body temperature, blood glucose concentrations, electrolyte concentrations, pH levels, and tendon tension that the body tries to maintain.

Front

What is the role of glucagon?

Back

A hormone that raises blood sugar levels by promoting the conversion of glycogen to glucose in the liver.

Front

What is homeostasis?

Back

The process by which the body maintains a stable internal environment despite changes in external conditions.

Front

What is an example of a positive feedback loop?

Back

The process of childbirth, where contractions increase in intensity and frequency.

Front

How does the body respond to high blood sugar?

Back

The pancreas releases insulin to lower blood sugar levels.

Front

What is the function of enzymes?

Back

Biological catalysts that speed up chemical reactions in the body.