Transport Systems

Question 1

What is diffusion?

Answer 1

movement of molecules from a higher concentration to a lower concentration

Question 2

What is osmosis?

Answer 2

movement of water from a higher concentration to a lower concentration

Question 3

How do humans receive oxygen?

Answer 3

through breathing

Question 4

How does breathing occur?

Answer 4

oxygen from the air will go to the alveoli and diffuse into the bloodstream

Question 5

What is the circulatory system comprised of?

Answer 5

heart, blood, blood vessels

Question 6

What is the heart made up of?

Answer 6

left atrium, right atrium, left ventricle, right ventricle, aorta, pulmonary arteries, and septum

Question 7

What blood does the left side pump?

Answer 7

oxygenated

Question 8

What blood does the right side pump?

Answer 8

deoxygenated

Question 9

What are blood vessels comprised of?

Answer 9

veins, arteries, capillaries

Question 10

What color is the vein in diagrams?

Answer 10

blue

Question 11

What color is the artery in diagrams?

Answer 11

red

Question 12

Why do veins have valves?

Answer 12

to keep blood moving in one direction

Question 13

What is blood made up of?

Answer 13

plasma, WBC, RBC, platelets

Question 14

What does plasma carry?

Answer 14

nutrients, waste, etc.

Question 15

What are the 2 circulations?

Answer 15

systemic and pulmonary

Question 16

Why do veins have valves?

Answer 16

to make sure blood flows in one way

Question 17

Which blood vessel has stronger muscles? Why?

Answer 17

arteries, because it has to handle more systolic pressure