What is the function of the spiracle in the breathing mechanism of insects?

• D. To regulate body temperature

• C. To filter out dust particles from the air

• B. To exchange gases with the environment

• A. To transport oxygen to the cells

How do abdominal muscles help insects to breathe?

• D. By absorbing oxygen through the skin

• C. By producing mucus to trap oxygen

• B. By expanding and contracting the respiratory cavity

• A. By contracting and relaxing to move the wings

State the two differences between the respiratory mechanisms of fish and humans.

• A. Fish breathe through gills, humans through lungs

• B. Fish have a tracheal system, humans have bronchus

• C. Fish have moist skin, humans have dry skin

• D. Fish use spiracles for breathing, humans use nostrils

Tags

NGSS.MS-LS4-2

Explain the mechanism of inhalation in humans.

• C. Intercostal muscles relax and diaphragm curves upwards

• D. Intercostal muscles contract and diaphragm moves downwards

• A. Diaphragm relaxes and ribcage moves downwards

• B. Diaphragm contracts and ribcage moves upwards

Why are the lungs of amphibians not as efficient as human lungs?

• A. Amphibians have smaller lungs

• B. Amphibians have less blood flow to the lungs

• C. Amphibians have less surface area for gas exchange

• D. Amphibians have a slower breathing rate

Explain how air is inhaled into the lungs.

• C. Intercostal muscles relax and diaphragm curves upwards

• B. Diaphragm contracts and ribcage moves downwards

• A. Diaphragm relaxes and ribcage moves upwards

• D. Intercostal muscles contract and diaphragm moves downwards

Explain how a carbon dioxide molecule is carried from the body cell to the alveolus to be expelled.

• C. Through the nervous system as carbonic acid

• B. Through the lymphatic system as carbaminohaemoglobin

• A. Through the bloodstream as bicarbonate ion

• D. Through the digestive system as carbon dioxide gas

Tags

NGSS.MS-LS1-2

What are the effects of chronic bronchitis on the bronchiole?

• B. Increased mucus production

• C. Constriction of air passage

• A. Inflammation and swelling

• D. Damage to alveolar walls

Explain the condition of bronchiole walls in asthmatic patients.

• D. Damage to alveolar walls

• C. Constriction of air passage

• B. Increased mucus production

• A. Inflammation and swelling

How does the usage of an inhaler help an asthmatic patient to breathe?

• C. By dilating the air passages

• B. By increasing mucus production in the lungs

• D. By strengthening the alveolar walls

• A. By reducing inflammation in the bronchioles