Sponge Anatomy and Function

The video tutorial covers the anatomy of sponges, focusing on the structure and function of specialized cells like collar cells and amoebocytes. It explains the water flow through the sponge, the role of spicules and spongin in providing support, and concludes with assignments for students to label sponge parts and take a quiz.

What is the primary function of the atrium in a sponge?

• To produce spicules

• To serve as the central cavity for water flow

• To trap food particles

• To store nutrients

Which part of the sponge allows water to exit?

• Atrium

• Osculum

• Spicule

• Ostia

What is the role of the ostia in a sponge?

• To allow water to enter the sponge

• To store nutrients

• To produce spicules

• To create water flow

What is the role of collar cells in a sponge?

• To create water flow and capture food

• To produce spicules

• To form the sponge's outer layer

• To store oxygen

How do amoebocytes contribute to a sponge's survival?

• By trapping food particles

• By distributing nutrients throughout the sponge

• By creating water flow

• By forming the sponge's skeleton

What is the purpose of the flagellum in collar cells?

• To trap food particles

• To create water movement

• To produce spicules

• To store nutrients

What process do collar cells use to absorb food particles?

• Photosynthesis

• Phagocytosis

• Diffusion

• Osmosis

Which cells are responsible for distributing nutrients in a sponge?

• Ostia

• Spicules

• Amoebocytes

• Collar cells

What is the function of spicules in a sponge?

• To aid in water flow

• To provide structural support

• To capture food particles

• To store nutrients

Which structure in a sponge is responsible for its spongy texture?

• Osculum

• Spicules

• Atrium

• Spongin