Lecture 19-Resource transport

Question 1

Chracteristics of open circulatory system?

Answer 1

Circulatory fluid bathes organs directly, Mainly in arthropods and molluscs. Hemolymph is interstitial fluid. Restricts growth.

Question 2

Characteristics of closed circulatory system?

Answer 2

Circulatory system in vessels, circulatory and interstitial fluid separate.

Question 3

What does the right-side of circulatory system do?

Answer 3

Moves blood to lung capillaries to become oxygenated.

Question 4

What does the left-side of circulatory system do?

Answer 4

Carries blood to systemic capillaries, where it is deoxygenated and binds CO2.

Question 5

What happens to blood pressure and flow rate across capillary beds?

Answer 5

They decrease due to the large effective area of capillary beds, slow flow enables effective diffusion.

Question 6

Which direction does water move in plants?

Answer 6

High to low potential energy

Question 7

What is the equation for water potential?

Answer 7

The sum of solute and pressure potential