11 HMS Core 2 KiQ1 Respiratory System Review

Which of the following is the correct formula for aerobic respiration in the human body?

• Glucose + Oxygen → Carbon Dioxide + Water + ENERGY (ATP)

• Oxygen + Water → Glucose + Carbon Dioxide + ENERGY (ATP)

• Carbon Dioxide + Water → Glucose + Oxygen + ENERGY (ATP)

• Glucose + Carbon Dioxide → Oxygen + Water + ENERGY (ATP)

What is the primary function of the respiratory system?

• To allow humans to breathe by drawing in oxygen and expelling carbon dioxide

• To circulate blood throughout the body

• To digest food and absorb nutrients

• To produce hormones for body regulation

Which two systems work closely together to deliver oxygen to cells and remove waste products?

• Respiratory and circulatory systems

• Digestive and nervous systems

• Muscular and skeletal systems

• Endocrine and immune systems

Which part of the respiratory system is primarily responsible for gas exchange?

• Alveoli

• Trachea

• Rib cage

• Epiglottis

What creates a negative pressure gradient that draws air into the lungs during breathing?

• The relaxation of the chest muscles

• The contraction of muscles that expand the chest cavity

• The increase in atmospheric pressure

• The closing of the air tubes

Which of the following best describes the path of air as it enters the respiratory system?

• Air travels along a set of tubes that increase in size

• Air travels along a set of tubes that decrease in size

• Air travels directly into the bloodstream

• Air bypasses the lungs entirely

Explain why a negative pressure gradient is important for breathing.

• It prevents air from entering the lungs

• It allows air to be drawn into the lungs

• It increases the size of the air tubes

• It causes the lungs to deflate

Which of the following correctly lists the order of air passage through the respiratory system, starting from where air enters the body?

• Mouth + Nose → Throat → Pharynx → Windpipe → Lung airways → Alveoli

• Mouth + Nose → Windpipe → Throat → Pharynx → Lung airways → Alveoli

• Throat → Mouth + Nose → Pharynx → Windpipe → Lung airways → Alveoli

• Mouth + Nose → Throat → Windpipe → Pharynx → Lung airways → Alveoli

Why is the large surface area of the alveoli important for respiration?

• It helps produce more mucus

• It increases the efficiency of gas exchange

• It allows the lungs to make more sound

• It filters dust particles

Explain how oxygen enters the bloodstream from the lungs and why this process is essential for the body. (DoK Level 3)

• Oxygen crosses the alveolar membrane into the blood, allowing cells to receive oxygen for energy production

• Oxygen is absorbed by the throat and sent directly to the brain

• Oxygen is filtered by the nose and stored in the windpipe

• Oxygen is converted to carbon dioxide in the pharynx