The location and function of choanocytes. Introduction: Choanocytes are present in sponges. They have flagella and fringe of protoplasm is present at the base of flagella. They are also known as “collar cells”. They make up a layer called choanoderm in sponges.

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Answer 1

Question

Chapter 33, Problem 1IQ

a.

Summary Introduction

To determine: The location and function of choanocytes.

Introduction: Choanocytes are present in sponges. They have flagella and fringe of protoplasm is present at the base of flagella. They are also known as “collar cells”. They make up a layer called choanoderm in sponges.

a.

Expert Solution

Explanation of Solution

Location: Choanocytes are usually flagellated. These flagellated choanocytes line the spongocoel. Spongocoel is the large cavity present in the center of sponges.

Function: The functions of choanocytes are as follows:

They create water current enabling the flow of water through the sponge.
They trap bacteria and engulf food particles by the process of phagocytosis.

b.

Summary Introduction

To determine: The location and function of amoebocytes.

Introduction: They are present in sponges and also in many other groups of invertebrates. They are capable of amoeboid movement due to presence of pseudopodia.

b.

Expert Solution

Explanation of Solution

Location: Amoebocytes are present in the mesohyl region. Mesohyl is the gelatinous layer that separates the two body layers of sponges.

Function: The functions of amoebocytes are as follows:

They move through the mesohyl and take up food materials from choanocytes and surrounding water medium.
Digest food material and carry the nutrients to other cells through their amoeboid movement.
They manufacture the tough skeletal fibres inside the mesohyl.

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Answer 2

Question

Chapter 33, Problem 1IQ

a.

Summary Introduction

To determine: The location and function of choanocytes.

Introduction: Choanocytes are present in sponges. They have flagella and fringe of protoplasm is present at the base of flagella. They are also known as “collar cells”. They make up a layer called choanoderm in sponges.

a.

Expert Solution

Explanation of Solution

Location: Choanocytes are usually flagellated. These flagellated choanocytes line the spongocoel. Spongocoel is the large cavity present in the center of sponges.

Function: The functions of choanocytes are as follows:

They create water current enabling the flow of water through the sponge.
They trap bacteria and engulf food particles by the process of phagocytosis.

b.

Summary Introduction

To determine: The location and function of amoebocytes.

Introduction: They are present in sponges and also in many other groups of invertebrates. They are capable of amoeboid movement due to presence of pseudopodia.

b.

Expert Solution

Explanation of Solution

Location: Amoebocytes are present in the mesohyl region. Mesohyl is the gelatinous layer that separates the two body layers of sponges.

Function: The functions of amoebocytes are as follows:

They move through the mesohyl and take up food materials from choanocytes and surrounding water medium.
Digest food material and carry the nutrients to other cells through their amoeboid movement.
They manufacture the tough skeletal fibres inside the mesohyl.

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Answer 3

Question

Chapter 33, Problem 1IQ

a.

Summary Introduction

To determine: The location and function of choanocytes.

Introduction: Choanocytes are present in sponges. They have flagella and fringe of protoplasm is present at the base of flagella. They are also known as “collar cells”. They make up a layer called choanoderm in sponges.

a.

Expert Solution

Explanation of Solution

Location: Choanocytes are usually flagellated. These flagellated choanocytes line the spongocoel. Spongocoel is the large cavity present in the center of sponges.

Function: The functions of choanocytes are as follows:

They create water current enabling the flow of water through the sponge.
They trap bacteria and engulf food particles by the process of phagocytosis.

b.

Summary Introduction

To determine: The location and function of amoebocytes.

Introduction: They are present in sponges and also in many other groups of invertebrates. They are capable of amoeboid movement due to presence of pseudopodia.

b.

Expert Solution

Explanation of Solution

Location: Amoebocytes are present in the mesohyl region. Mesohyl is the gelatinous layer that separates the two body layers of sponges.

Function: The functions of amoebocytes are as follows:

They move through the mesohyl and take up food materials from choanocytes and surrounding water medium.
Digest food material and carry the nutrients to other cells through their amoeboid movement.
They manufacture the tough skeletal fibres inside the mesohyl.

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Question

Chapter 33, Problem 1IQ

a.

Summary Introduction

To determine: The location and function of choanocytes.

Introduction: Choanocytes are present in sponges. They have flagella and fringe of protoplasm is present at the base of flagella. They are also known as “collar cells”. They make up a layer called choanoderm in sponges.

a.

Expert Solution

Explanation of Solution

Location: Choanocytes are usually flagellated. These flagellated choanocytes line the spongocoel. Spongocoel is the large cavity present in the center of sponges.

Function: The functions of choanocytes are as follows:

They create water current enabling the flow of water through the sponge.
They trap bacteria and engulf food particles by the process of phagocytosis.

b.

Summary Introduction

To determine: The location and function of amoebocytes.

Introduction: They are present in sponges and also in many other groups of invertebrates. They are capable of amoeboid movement due to presence of pseudopodia.

b.

Expert Solution

Explanation of Solution

Location: Amoebocytes are present in the mesohyl region. Mesohyl is the gelatinous layer that separates the two body layers of sponges.

Function: The functions of amoebocytes are as follows:

They move through the mesohyl and take up food materials from choanocytes and surrounding water medium.
Digest food material and carry the nutrients to other cells through their amoeboid movement.
They manufacture the tough skeletal fibres inside the mesohyl.

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Answer 5

Chapter 33, Problem 1IQ

a.

Summary Introduction

To determine: The location and function of choanocytes.

Introduction: Choanocytes are present in sponges. They have flagella and fringe of protoplasm is present at the base of flagella. They are also known as “collar cells”. They make up a layer called choanoderm in sponges.

a.

Expert Solution

Explanation of Solution

Location: Choanocytes are usually flagellated. These flagellated choanocytes line the spongocoel. Spongocoel is the large cavity present in the center of sponges.

Function: The functions of choanocytes are as follows:

They create water current enabling the flow of water through the sponge.
They trap bacteria and engulf food particles by the process of phagocytosis.

b.

Summary Introduction

To determine: The location and function of amoebocytes.

Introduction: They are present in sponges and also in many other groups of invertebrates. They are capable of amoeboid movement due to presence of pseudopodia.

b.

Expert Solution

Explanation of Solution

Location: Amoebocytes are present in the mesohyl region. Mesohyl is the gelatinous layer that separates the two body layers of sponges.

Function: The functions of amoebocytes are as follows:

They move through the mesohyl and take up food materials from choanocytes and surrounding water medium.
Digest food material and carry the nutrients to other cells through their amoeboid movement.
They manufacture the tough skeletal fibres inside the mesohyl.

Answer 6

Chapter 33, Problem 1IQ

a.

Summary Introduction

To determine: The location and function of choanocytes.

Introduction: Choanocytes are present in sponges. They have flagella and fringe of protoplasm is present at the base of flagella. They are also known as “collar cells”. They make up a layer called choanoderm in sponges.

a.

Expert Solution

Explanation of Solution

Location: Choanocytes are usually flagellated. These flagellated choanocytes line the spongocoel. Spongocoel is the large cavity present in the center of sponges.

Function: The functions of choanocytes are as follows:

They create water current enabling the flow of water through the sponge.
They trap bacteria and engulf food particles by the process of phagocytosis.

Answer 7

Chapter 33, Problem 1IQ

a.

Summary Introduction

To determine: The location and function of choanocytes.

Introduction: Choanocytes are present in sponges. They have flagella and fringe of protoplasm is present at the base of flagella. They are also known as “collar cells”. They make up a layer called choanoderm in sponges.

Answer 8

a.

Expert Solution

Explanation of Solution

Location: Choanocytes are usually flagellated. These flagellated choanocytes line the spongocoel. Spongocoel is the large cavity present in the center of sponges.

Function: The functions of choanocytes are as follows:

They create water current enabling the flow of water through the sponge.
They trap bacteria and engulf food particles by the process of phagocytosis.

Answer 9

a.

Expert Solution

Answer 10

a.

Expert Solution

Answer 11

Expert Solution

Answer 12

b.

Summary Introduction

To determine: The location and function of amoebocytes.

Introduction: They are present in sponges and also in many other groups of invertebrates. They are capable of amoeboid movement due to presence of pseudopodia.

b.

Expert Solution

Explanation of Solution

Location: Amoebocytes are present in the mesohyl region. Mesohyl is the gelatinous layer that separates the two body layers of sponges.

Function: The functions of amoebocytes are as follows:

They move through the mesohyl and take up food materials from choanocytes and surrounding water medium.
Digest food material and carry the nutrients to other cells through their amoeboid movement.
They manufacture the tough skeletal fibres inside the mesohyl.

Answer 13

b.

Summary Introduction

To determine: The location and function of amoebocytes.

Introduction: They are present in sponges and also in many other groups of invertebrates. They are capable of amoeboid movement due to presence of pseudopodia.

Answer 14

b.

Expert Solution

Explanation of Solution

Location: Amoebocytes are present in the mesohyl region. Mesohyl is the gelatinous layer that separates the two body layers of sponges.

Function: The functions of amoebocytes are as follows:

They move through the mesohyl and take up food materials from choanocytes and surrounding water medium.
Digest food material and carry the nutrients to other cells through their amoeboid movement.
They manufacture the tough skeletal fibres inside the mesohyl.

Answer 15

b.

Expert Solution

Answer 16

b.

Expert Solution

Answer 17

Expert Solution

Answer 18

Ch. 33 - Prob. 1IQ Ch. 33 - Prob. 2IQ Ch. 33 - a. Describe the digestive system of a planarian....Ch. 33 - Prob. 4IQ Ch. 33 - Prob. 5IQ Ch. 33 - Compare the locomotion of an earthworm and that of...Ch. 33 - Prob. 7IQ Ch. 33 - Prob. 8IQ Ch. 33 - Prob. 9IQ Ch. 33 - Prob. 10IQ

The location and function of choanocytes. Introduction: Choanocytes are present in sponges. They have flagella and fringe of protoplasm is present at the base of flagella. They are also known as “collar cells”. They make up a layer called choanoderm in sponges.

Concept explainers

To determine: The location and function of choanocytes. Introduction: Choanocytes are present in sponges. They have flagella and fringe of protoplasm is present at the base of flagella. They are also known as “collar cells”. They make up a layer called choanoderm in sponges.

Explanation of Solution

To determine: The location and function of amoebocytes. Introduction: They are present in sponges and also in many other groups of invertebrates. They are capable of amoeboid movement due to presence of pseudopodia.

Explanation of Solution

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Chapter 33 Solutions

To determine: The location and function of choanocytes.

Introduction: Choanocytes are present in sponges. They have flagella and fringe of protoplasm is present at the base of flagella. They are also known as “collar cells”. They make up a layer called choanoderm in sponges.

To determine: The location and function of amoebocytes.

Introduction: They are present in sponges and also in many other groups of invertebrates. They are capable of amoeboid movement due to presence of pseudopodia.