How do mucus and cilia in the respiratory system help protect the body from pathogens?

They trap and move pathogens out by coughing or sneezing

They increase blood flow to the lungs

Which of the following is a function of peristalsis in the immune system?

It can reverse direction to cause vomiting or speed up to remove pathogens through diarrhea.

It destroys pathogens with acid.

Which of the following best describes the difference between nonspecific and specific defenses in the immune system?

Nonspecific defenses target all pathogens, while specific defenses target particular pathogens.

Nonspecific defenses are only found in animals, while specific defenses are found in plants.

Specific defenses act faster than nonspecific defenses because the blood vessel expressway is used.

Nonspecific defenses require antibodies, while specific defenses do not.

Which of the following are characteristics of the adaptive immune system?

It is specific to certain pathogens

It involves the production of antibodies

It requires a change or adaptation

What is the role of memory cells in the adaptive immune system?

They help the body remember and quickly respond to a specific pathogen if it infects again.

They attack all pathogens immediately.

They produce histamine to cause inflammation and swelling in body tissues.

They digest nutrients in the blood for energy.

How is active immunity developed in the body?

Through illness or infection and vaccination

By receiving antibodies from another person, like through breastmilk

By increasing the number of red blood cells

What is the primary role of the immune system?

To protect the body against infection, illness, and disease.

To transport nutrients throughout the body.

How do phagocytes initiate an immune response?

By consuming foreign cells and transmitting information about their antigens.

By producing antibodies to neutralize invaders.

By directly killing infected body cells.

By increasing body temperature to inhibit pathogen reproduction.

What is the function of antibodies produced by B cells?

To latch onto specific antigens and destroy invading cells.

To act as molecular traces on pathogens.

To trigger swelling in affected tissues.

What characterizes autoimmune diseases?

The immune system mistakenly attacks the body's own healthy cells.

The immune system fails to produce enough leukocytes.

The body develops long-term immunity to all diseases.

The immune system is unable to detect antigens.

How does passive immunity differ from active immunity in terms of how antibodies are acquired?

Passive immunity involves receiving antibodies from another source, while active immunity involves producing antibodies after exposure to a pathogen.

Passive immunity is permanent, while active immunity is temporary.

Passive immunity only occurs through vaccination, while active immunity only occurs through infection with an actual pathogen and showing pathogens how to find the nucleus.

Passive immunity is specific to viruses, while active immunity is specific to bacteria and protozoa.

What was Tim Friede's main motivation for allowing venomous snakes to bite him?

To avoid dying from snakebites and needing antivenom.

To prove his immunity to snake venom.

To develop a new type of antivenom using his blood.

To overcome his fear of snakes.

How was antivenom usually produced in the past?

By injecting small doses of venom into animals, like horses, to produce antibodies.

By injecting small doses of venom into humans to produce antibodies.

By extracting venom directly from snakes and purifying it.

Through a synthetic process in a laboratory.

What is a negative impact of the way that antivenom was made in the past?

It can cause serious side effects due to animal antibodies.

It is too expensive for most people.

It is only effective against a single type of snake venom.

It requires a long time to produce in large quantities.

What was the key component used by Centivax to develop their new antivenom cocktail?

Antibodies isolated from Tim Friede's blood.

Synthetic compounds mimicking snake venom.

Venom extracted from 19 different snake species.

Genetically modified horse antibodies.

How effective was the new antivenom cocktail in tests on mice against deadly snake venoms?

It provided complete protection against 13 of 19 venoms and partial protection against the rest.

It provided complete protection against all 19 tested venoms.

It showed partial protection against all 19 tested venoms.

It was only effective against 6 of the 19 tested venoms.

What is the main difference between an allergy and an autoimmune disease?

An allergy is an overreaction to a harmless substance, while an autoimmune disease is when the immune system attacks the body’s own cells.

An allergy is caused by viruses, while autoimmune diseases are caused by bacteria.

Allergies are always temporary, while autoimmune diseases are always permanent.

Allergies only affect the skin, while autoimmune diseases only affect internal organs, like the heart, kidneys, joints, and liver..

What are the two main objectives of this lesson on the immune system?

To learn the major parts of the immune system and their functions, and to understand the differences between nonspecific and specific defenses.

To memorize all diseases caused by viruses and bacteria.

To study the history of medicine and vaccines.

To focus only on the anatomy of the human body.

Interactive Video

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Science

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8th Grade

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Practice Problem

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Easy

Derrick Thompson

Used 6+ times

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45 questions

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SLIDE QUESTION

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SLIDE QUESTION

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MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which of the following is NOT a function of the immune system?

Destroying pathogens that get past barriers

Stopping pathogens from entering the body

Producing energy for the body

Protecting against pathogens

SLIDE QUESTION

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SLIDE QUESTION

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SLIDE QUESTION

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The Immune System

45 questions

Which of the following is NOT a function of the immune system?

Which of the following are considered first-line defenses of the immune system?

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