Quiz on the Swim Bladder in Bony Fish

Where does the swim bladder arise from in bony fishes?

• Kidney region

• Oesophageal region

• Intestinal region

• Stomach region

What is the function of the swim bladder in bony fishes?

• Sound production

• Buoyancy control

• Respiration aid

• All of the above

Which type of swim bladder has a ductus pneumaticus connecting to the oesophagus?

• Physostomous

• Physoclistous

• Both

• Neither

In which fish type is the swim bladder positioned laterally?

• Polypterus

• Dipnoi

• Teleosts

• Physostomous

What is the function of the red gland in physoclistous fishes?

• All of the above

• Controls gas expulsion

• Permits gas reabsorption by the blood

• Secretes gases into the swim bladder

How is gas removed in physoclistous fishes due to the absence of a pneumatic duct?

• Through the gills

• Through diffusion

• Through a specialized gland

• Through the oesophagus

What is the function of red bodies in the swim bladder of some fish species?

• Blood circulation

• Gas secretion

• Muscle contraction

• Gas resorption

Which fish type has a swim bladder that closely resembles an amphibian lung?

• Dipnoi

• Lepidosteus

• Amia

• Polypterus

What is the primary role of the swim bladder in bony fishes?

• Sound production

• Respiration aid

• Buoyancy and depth control

• Pressure sensing

How do deep water fishes adapt to low-oxygen environments?

• By storing oxygen in the swim bladder

• By migrating to shallow waters

• By having larger gills

• By increasing their metabolic rate