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Chapter 5: Problem 19

Substances that are produced by the body to fight against the invader is (a) Antibiotic (b) Vaccine (c) Antibody (d) Antigen

Short Answer

Expert verified
Answer: (c) Antibody.

Step by step solution

01

Identify the Purpose of an Antibiotic

An antibiotic is a substance, usually derived from microorganisms, that can destroy or inhibit the growth of bacteria or other microorganisms. They are used as a treatment for bacterial infections and work by killing the harmful bacteria or preventing their growth. Antibiotics are not produced by the human body, but rather prescribed by a medical professional.
02

Identify the Purpose of a Vaccine

A vaccine is a substance that contains weakened or inactive parts of a microorganism. It is introduced into the body to stimulate the immune system to produce an immune response. This allows the body to recognize and attack the invader in the future, providing immunity to the disease. Vaccines are not produced by the body, but are administered by a medical professional.
03

Identify the Purpose of an Antibody

An antibody is a protein produced by the body's immune system in response to an invader, such as a virus, bacteria, or other foreign substance. Antibodies help to neutralize or destroy the invader, protecting the body from the harmful effects of the invader. Since this option mentions that the substance is produced by the body as a response to an invader, this could be the correct answer.
04

Identify the Purpose of an Antigen

An antigen is a substance, usually found on the surface of bacteria, viruses, or other foreign substances, that can trigger an immune response when it enters the body. The immune system recognizes antigens and produces antibodies to target and destroy the invader. Antigens are components of the invading microorganisms and not produced by the body.
05

Choose the Correct Answer

Based on the understanding of each substance's purpose, we can determine that the correct answer is (c) Antibody. Antibodies are the substances produced by the body to fight against invaders and help defend the body from infection.

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