Respiratory Systems Quiz

Functions of respiratory systems include?

• Transporting nutrients to cells

• Removing waste products from metabolism

• Facilitating the exchange of gases (oxygen and carbon dioxide)

• Regulating blood pH

What limitations does diffusion impose on the organism?

• Limits the size of the organism

• Requires a specific type of membrane

• Increases energy consumption

• No limitations imposed

Ways to maximize diffusion?

• Increase the temperature

• Decrease the concentration gradient

• Decrease the surface area

• Increase the thickness of the membrane

Why can earthworms rely on cutaneous respiration?

• Because they have lungs specialized for this purpose

• Due to their moist skin allowing gas exchange

• Because they live underground and do not require oxygen

• They use gills like fish

What other invertebrate phyla could also use just diffusion for respiration?

• Porifera and Cnidaria

• Arthropoda and Mollusca

• Nematoda and Annelida

• Echinodermata and Platyhelminthes

Why don’t gills work in a terrestrial environment? Provide two reasons.

Why was increased exchange necessary in mammal lungs?

How do gills in fish facilitate respiration?

• By filtering oxygen from water

• By increasing the water pressure

• By decreasing the water temperature

• By emitting carbon dioxide into the water

What is the primary function of the alveoli in the human respiratory system?

• Transporting oxygen to the bloodstream

• Producing mucus to trap pathogens

• Facilitating the exchange of gases between air and blood

• Regulating the flow of air to the lungs