Digestive & Endocrine Systems

Front

What is the function of enzymes?

Back

They break down polysaccharides (large molecules), so they can be transported into the bloodstream.

Front

Once this piece of pizza has been broken down and digested, will the atoms that make up the food still exist?

Back

Yes

Front

Why is this considered a negative feedback loop?

Back

This feedback loop keeps body temperature within the normal range

Front

What is a positive feedback loop?

Back

A type of control system that increases the starting signal; usually found in processes that need to be pushed to completion.

Front

Which of the following are true about positive feedback loops?

Back

It amplifies the change and continues to get stronger.

Front

Most feedback loops in the body are:

Back

Negative

Front

What would happen on a hot day if your brain DID NOT receive the input that it was hot?

Back

You will start to overheat.

Front

Which statement is NOT true? ***read carefully. use the diagram to help you answer*** Options: When body temperature falls, the body responds by shivering until normal body temp. is reached., When body temperature rises, the body responds by continuously sweating even after normal temp. is reached., When body temperature falls, the body responds by narrowing blood vessels until normal body temp. is reached., When body temperature rises, the body responds by sweating until normal body temp. is reached.

Back

When body temperature rises, the body responds by continuously sweating even after normal temp. is reached.

Front

What type of feedback loop is shown? Options: negative, neutral, positive

Back

positive

Front

Which feedback mechanism involves amplifying responses and processes in biological organisms?

Back

Positive Feedback