REVIEW QUIZ IN SCIENCE 9 FIRST QUARTER

What is the primary function of the circulatory system?

• To digest food

• To transport oxygen and nutrients to cells

• To produce hormones

• To filter waste from the blood

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

• Left atrium

• Right atrium

• Left ventricle

• Right ventricle

Where is hemoglobin primarily found?

• White blood cells
  

• Plasma

• Red blood cells

• Platelets

What can atherosclerosis lead to if left untreated?

• Diabetes

• Osteoporosis

• Asthma

• Heart attack or stroke

What is a potential complication of untreated congenital heart disease?

• Heart failure

• Decrease lung function

• Enhanced athletic performance

• Increased lifespan

Which structure is responsible for the exchange of oxygen and carbon dioxide in the lungs?

• Trachea

• Bronchi

• Alveoli

• Diaphragm

What is the primary role of the cilia in the respiratory system?

• To produce mucus

• To filter and move particles out of the airways

• To exchange gases in the alveoli

• To regulate airflow

During swallowing, the epiglottis:

• Opens to allow air into the lungs

• Closes over the trachea

• Moves down to the esophagus

• Expands to increase airflow

Which respiratory structure is primarily involved in the production of sound and the protection of the airway during swallowing?

• Larynx

• Trachea

• Bronchi

• Pharynx

What is the primary causative agent of tuberculosis?

• Streptococcus pneumoniae

• Mycobacterium tuberculosis

• Staphylococcus aureus

• Escherichia coli