The circulatory system transports substances between the exchange surface and cells. It delivers oxygen and glucose to the tissues for respiration, which is the release of energy to cells.
Why do large multicellular organisms need transport systems while simple unicellular organisms do not?
Large organisms have a much smaller surface area to volume ratio compared to smaller ones
Diffusion does not work in large multicellular organisms
Unicellular organisms have a much smaller surface area to volume ratio than multicellular organisms
How is carbon dioxide transported in the blood?
In white blood cells
Which type of blood vessel contains valves?
What sort of circulatory system is the human circulatory system?
Which chamber of the heart produces the highest pressure in the blood?
Anaerobic respiration does not require which substance?
Which of these is the word equation for aerobic respiration?
Glucose + oxygen → carbon dioxide + water
Glucose → lactic acid + carbon dioxide
Carbon dioxide + water → glucose + oxygen
Compared with aerobic respiration, anaerobic respiration releases how much energy?
What is the name of the apparatus used to determine the respiration rate?
How is cardiac output (CO) calculated?
CO = Stroke volume x Heart rate
CO = Stroke volume/Heart rate
CO = Heart rate/Stroke volume