*Homeostasis and Respiration Flashcard Review

Front

What is Homeostasis?

Back

Homeostasis is the maintenance of a relatively stable internal environment within an organism, despite changes in external conditions.

Front

What is a Negative Feedback Loop?

Back

A Negative Feedback Loop is a process that counteracts a change in a system, helping to maintain stability. For example, when blood glucose levels rise, insulin is released to lower them.

Front

What role does the pancreas play in blood sugar regulation?

Back

The pancreas releases insulin when blood glucose levels are high, allowing glucose to enter cells and lower blood sugar levels.

Front

What is the primary molecule needed for cellular respiration to begin?

Back

Glucose is the primary molecule needed for cellular respiration to begin.

Front

Which organ absorbs water back into the body?

Back

The large intestine absorbs water back into the body and pushes leftover food through the digestive system.

Front

What is the function of insulin?

Back

Insulin is a hormone that helps lower blood sugar levels by facilitating the uptake of glucose into cells.

Front

What is the difference between the small intestine and the large intestine?

Back

The small intestine is primarily responsible for nutrient absorption, while the large intestine absorbs water and forms waste.

Front

What happens when blood sugar levels drop?

Back

When blood sugar levels drop, the pancreas releases glucagon, which signals the liver to release stored glucose into the bloodstream.

Front

What is the significance of cellular respiration?

Back

Cellular respiration is the process by which cells convert glucose and oxygen into energy (ATP), carbon dioxide, and water.

Front

How does the body respond to high carbon dioxide levels?

Back

The body responds to high carbon dioxide levels by increasing the rate of respiration to expel more CO2 and take in more oxygen.