Science Quiz on Respiratory and Circulatory Systems

What is the main function of the nose in the respiratory system?

• Carries oxygenated blood

• Filters blood

• Produces sound

• Entry point for air

Which part of the respiratory system is known as the voice box?

• Bronchi

• Pharynx

• Larynx

• Trachea

What are alveoli responsible for?

• Gas exchange

• Air filtration

• Blood circulation

• Sound production

Which disease is characterized by chronic airway swelling?

• Asthma

• Lung Cancer

• Emphysema

• COPD

What is the primary cause of Chronic Obstructive Pulmonary Disease (COPD)?

• Smoking

• Cold air

• Exercise

• Genetics

Which part of the heart receives deoxygenated blood from the body?

• Left Atrium

• Right Atrium

• Right Ventricle

• Left Ventricle

What is the function of the aorta?

• Carries deoxygenated blood to the lungs

• Pumps blood to the body

• Brings blood from the body to the heart

• Controls blood flow to the lungs

Which blood component is responsible for oxygen transport?

• White Blood Cells

• Platelets

• Plasma

• Red Blood Cells

What is the main function of the diaphragm?

• Produces sound

• Helps in breathing

• Filters air

• Pumps blood

What is the shape of DNA?

• Linear

• Double helix

• Single helix

• Circular