PRINCIPLES OF LIFE
PRINCIPLES OF LIFE
3rd Edition
ISBN: 9781319017712
Author: HILLIS
Publisher: MAC HIGHER
bartleby

Concept explainers

Question
Book Icon
Chapter 36, Problem 1.1Q
Summary Introduction

To determine: The three types of lymphocytes and the three types of phagocytes.

Introduction: The cells that are responsible for adaptive immunity are known as lymphocytes. There are three types of lymphocytes. However, the immune cells that attack the pathogens by the process of phagocytosis are called phagocytes. They engulf the attacking pathogens and kill them.

Expert Solution & Answer
Check Mark

Explanation of Solution

The three types of lymphocytes are as follows:

  • B lymphocytes:

    B-cell lymphocytes are the cells that have to differentiate into other types of cells called plasma cells. These plasma cells are able to destroy an antigen. The primary function of the B cells is to produce humoral immune responses, antibodies, and memory cells.

  • T lymphocytes:

    There are two types of T lymphocytes. These are helper T cells and cytotoxic T cells. The cytotoxic T-cells are the cells that require activation molecules such as an antigen to kill antigens. The function of the cytotoxic T cells is to generate cellular responses. However, helpers T-cells are the cells that enhance the activity of both B and cytotoxic T-cells. The function of the helper T cells is to regulate the humoral and cellular responses.

  • Natural Killers (NK):

    Natural killers (NK cells) are a type of lymphocytes that kill the pathogens by releasing harmful toxins and chemicals. They attack the body parts that are infected by viruses.

The three types of phagocytes are as follows:

  • Macrophages:

    These are the phagocyte cells that engulf the invading pathogens and kill them by the process of phagocytosis. They also help in the process of antigen presentation.

  • Dendritic cells:

    The dendritic cells are the phagocytes that function very similarly to the macrophages. The dendritic cells engulf the pathogens and kill them by the process of phagocytosis. They present the antigens to the T cells.

  • Neutrophils:

    They are the phagocytes that are involved in the process of inflammation. They destroy the microorganisms that are present in the areas that are affected by inflammation.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Knowledge Booster
Background pattern image
Biology
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Text book image
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
Text book image
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Text book image
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
Text book image
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
Text book image
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
Text book image
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education