Circulatory system

Question 1

How do multi-cellular animals overcome limitations of diffusion

Answer 1

Specialized circulatory system

Question 2

What does the specialized circulatory system comprise of

Answer 2

A heart
A fluid in which substances are transported
Vessels through which the fluid can flow

Question 3

What is circulatory systems are there

Answer 3

Open (e.g molluscs & arthropods)
Closed (e.g vertebrates; mammals)

Question 4

What is blood like in the closed circulatory system

Answer 4

Fully enclosed within blood vessels at all times

Question 5

from the heart how is blood pumped

Answer 5

through a series of progressively smaller blood vessels called arteries and arterioles to capillaries

Question 6

Information about capillaries

Answer 6

Smallest blood vessel, only location where substances can diffuse in and out of blood into surrounding cells

Question 7

What happens to blood after being passed through the capillaries

Answer 7

blood transported back to heart through progressively larger vessels called venules and veins

Question 8

How does blood pass in a single circulatory system

Answer 8

through a two-chambered heart just once in every circuit of body

Question 9

How does blood pass in a double circulatory system

Answer 9

Blood passes through 4-chambered heart twice in every complete circuit of body

Question 10

Whats pulmonary circulation

Answer 10

Consists of all vessels involved in transporting blood between heart and lungs

Question 11

What is systematic circulation

Answer 11

Consists of all vessels involved in transporting blood between heart and the body excluding lungs