Human Body Systems and Functions

This video tutorial covers key concepts in exchange and transport in cell biology, focusing on diffusion, gas exchange, and the components of blood. It explains the structure and function of the respiratory and cardiovascular systems, detailing the processes of aerobic and anaerobic respiration. The tutorial highlights the movement of gases and particles, the role of blood components, and the pathways of blood circulation, providing a comprehensive understanding of these biological processes.

What is the primary function of diffusion in the lungs?

• To regulate body temperature

• To remove waste products from the body

• To exchange gases between blood and air

• To transport nutrients to cells

Which component of blood is responsible for carrying oxygen?

• White blood cells

• Platelets

• Serum

• Red blood cells

What is the main role of white blood cells?

• To clot blood

• To fight infections

• To carry oxygen

• To transport nutrients

Which part of the respiratory system is also known as the windpipe?

• Bronchus

• Trachea

• Diaphragm

• Alveoli

What is the function of the diaphragm in the respiratory system?

• To exchange gases

• To filter air

• To move air in and out of the lungs

• To protect the lungs

Which blood vessel carries oxygenated blood from the heart to the body?

• Aorta

• Vena cava

• Pulmonary artery

• Pulmonary vein

What is the purpose of valves in the heart?

• To pump blood

• To prevent backflow of blood

• To filter blood

• To oxygenate blood

What is the main product of anaerobic respiration in muscles?

• Carbon dioxide

• Lactic acid

• Ethanol

• Water

Which of the following is a byproduct of yeast fermentation?

• Oxygen

• Glucose

• Ethanol

• Lactic acid

What is the chemical formula for glucose?

• O2

• C6H12O6

• CO2

• H2O