Pre-exam revision grade 8

which respiratory organ is responsible for voice production?

• trachea

• larynx

• bronchi

• lungs

which of the following parts of the respiratory system is responsible for gas exchange?

• G

• A

• C

• B

what is the function of the trachea?

• it is where gas exchange happens

• it transports oxygen out of the lungs and into the air

• it transports oxygen from the nose/mouth and into the lungs

• it transports carbon dioxide from the lungs and to the nose / mouth

which of the following is true?

• during inhaling pressure decreases

• during exhaling pressure decreases

• during inhaling volume increases

• during exhaling volume increases

Name the process by which oxygen moves from the alveoli (area of its higher concentration) and into the blood (area of its lower concentration.)

What is part A called?

• bronchioles

• bronchi

• trachea

• alveoli

Which of the following is the function of white blood cells?

• Transporting oxygen

• Producing energy

• Fighting infections

• Carrying nutrients

What process allows white blood cells to engulf and digest pathogens?

• Photosynthesis

• Phagocytosis

• Metabolism

• . Diffusion

What is this cell?

• red blood cell

• white blood cell

• platelets

• plasma

what is this cell?

• white blood cell

• platelets

• plasma

• red blood cell