AP BIOLOGY

ANIMAL PHYSIOLOGY

HUMAN CIRCULATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What do capillaries, the smallest blood vessels, do?
A
Whatever they want.
B
exchange phone numbers with other cells so they can snap chat
C
exchange nutrients and oxygen for waste
D
break down foods
Explanation: 

Detailed explanation-1: -Capillaries: These tiny blood vessels have thin walls. Oxygen and nutrients from the blood can move through the walls and get into organs and tissues. The capillaries also take waste products away from your tissues. Capillaries are where oxygen and nutrients are exchanged for carbon dioxide and waste.

Detailed explanation-2: -4. Exchange of Gases, Nutrients, and Waste Between Blood and Tissue Occurs in the Capillaries. Capillaries are tiny vessels that branch out from arterioles to form networks around body cells.

Detailed explanation-3: -Capillaries are delicate blood vessels that exist throughout your body. They transport blood, nutrients and oxygen to cells in your organs and body systems. Capillaries are the smallest blood vessels in your vascular system.

Detailed explanation-4: -As blood moves through the capillaries, the oxygen and other nutrients move out into the cells. Then waste matter from the cells goes into the capillaries. As the blood leaves the capillaries, it moves through the veins. Veins merge into larger tubes to carry the blood back to the heart.

Detailed explanation-5: -capillaries-these are tiny vessels that connect arteries and veins. Their thin walls allow blood to come into close contact with tissues to exchange oxygen, carbon dioxide, nutrients and waste products.

There is 1 question to complete.