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Structure and Function- Resp&Circ

Last updated over 7 years ago

5 questions

1

1

1

Question 3

3.

How does the structure of a red blood cell allow it to carry oxygen?

1

1

Question 5

5.

How do the respiratory system, the circulatory system, and diffusion all relate?

Question 1

1.

Respiratory System- What are structures included in this system and what is its function?

A Lungs, Alveoli: exchange gases such as CO2 and Oxygen

B Heart, Lungs: circulate blood throughout the body

C Alveoli, Lungs: to pump blood through the body

D Nasal Cavity, Heart: exchange gases such as CO2 and Oxygen

Question 2

2.

Circulatory System- What are structures included in this system and what is its function?

A Lungs, Alveoli: obtain Oxygen from the surrounding atmosphere in breathing

B  Heart, Lungs: circulate blood carrying molecules such as O2 and CO2 throughout the body

C Lungs, Epiglottis: to pump blood through the body

D Nasal Cavity, Heart: exchange gases such as CO2 and Oxygen

Question 4

4.

Which statement is true?

A Phospholipids contain a hydrophobic head and a hydrophilic tail. 

B Hydrophilic means "water loving" whereas hydrophobic means "water fearing".

C Cell membranes are composed of only phospholipids. 

D Only plants and animals have homeostasis. 