1) What structure in the respiratory system is primarily responsible for gas exchange? a) Trachea b) Alveoli c) Bronchi d) Diaphragm  2) Fish exchange gases through a) Gills b) Lungs c) Trachea d) Spiracles 3) Diffusion is the movement of particles from an area of __________ concentration to an area of low concentration. a) equal b) higher c) lower d) stable 4) What is the function of mucus in the respiratory system? a) To produce oxygen b) To trap dust and pathogens c) To warm the air d) To assist gas exchange 5) How does oxygen enter the bloodstream from the lungs? a) Through diffusion across the alveolar walls b) Through active transport by lung cells c) Through filtration by the bronchioles d) Through osmosis in the alveoli 6) How does surface area affect the rate of diffusion? a) It decreases the rate of diffusion b) It has no effect c) Larger surface area increases the rate of diffusion d) Smaller surface area increases the rate of diffusion 7) How do you calculate breathing rate? a) Breathing rate = number of breaths / time b) Breathing rate = number of breaths x time c) Breathing rate = number of breaths + time d) Breathing rate = number of breaths - time

Exchange surfaces

di
Stampa
Incorpora

Classifica

Stile di visualizzazione

Opzioni

Cambia modello

Ripristinare il titolo salvato automaticamente: ?