Immune System Student Worksheet General Immunology

Immune System Student Worksheet General Immunology

The Immune System Student Worksheet provides an in-depth exploration of immune system anatomy and responses. It covers key topics such as the roles of various immune cells, the impact of vaccines, and the significance of immune responses to infections. Designed for students studying general immunology, this worksheet includes practical applications, such as interpreting blood test results and understanding the effects of conditions like leukemia. It serves as a valuable resource for learners preparing for exams or seeking to deepen their understanding of immunological concepts.

Key Points

  • Explores the anatomy of the immune system, including key organs and cell types.
  • Examines the innate and adaptive immune responses to pathogens.
  • Includes practical applications like interpreting blood test results.
  • Discusses the importance of vaccines and their role in preventing disease.
,
  • Gurtaj Sohi
44
/ 6
www.BioInteractive.org
Published March 2022
Page 1 of 6
The Immune System
Click & Learn
Student Worksheet (General Immunology)
INTRODUCTION
This worksheet will guide your exploration of The Immune System Click & Learn. After completing this
worksheet, you will have more knowledge about how the immune system works. You will be able to apply that
knowledge to everyday situations, such as getting a vaccine or having a fever.
PART 1: Introduction to Immune System Anatomy
Open The Immune System Click & Learn and go through the “Immune System Anatomy” section. This section
explores the main organs of the immune system.
1. The body has physical and chemical barriers to prevent pathogens from entering and infecting tissues.
a. Having a runny nose (and blowing your nose) protects your body from pathogens. How do you think that
works?
b. Why do cells that line the respiratory tract (including the nose and lungs) have hairs?
2. The table below is an example “report” from a blood test. It shows the numbers of five different cell types in
a person’s blood. It also shows the expected ranges of numbers if the person is currently healthy. (These
values are just examples — other people’s might be different.)
Type of cell
Number of cells
(per microliter of blood)
Expected number of cells
(per microliter of blood)
Neutrophils
4,165
1,560–6,450
Lymphocytes
(T cells, B cells, NK cells)
1,050
950–3,070
Eosinophils
142
30–480
Monocytes
519
260–810
Basophils
24
10–80
a. Where in the body are these types of cells produced?
b. Are this person’s numbers of immune cells within their expected ranges? If not, which cell types are not
within their expected ranges?
3. Below is an example report for someone with leukemia, a cancer of immune cells. Cancer is caused by
uncontrolled cell division.
Type of cell
Number of cells
(per microliter of blood)
Expected number of cells
(per microliter of blood)
Neutrophils
2,580
1,560–6,450
Lymphocytes
(T cells, B cells, NK cells)
124
950–3,070
Eosinophils
30
30–480
The Immune System
www.BioInteractive.org
Published March 2022
Page 2 of 6
Monocytes
2,280
260–810
Basophils
60
10–80
a. Which parts of this report might show that this person has leukemia? Be specific.
b. One treatment for leukemia is a bone marrow transplant. First, doctors use various methods to kill the
cancer cells in the person’s body. They can then replace these cells with stem cells from the bone
marrow of a person without leukemia. Why might a bone marrow transplant help a person with
leukemia?
4. In very rare cases, a baby may be born without a thymus. How might this affect their immune system?
5. When a person is sick, a doctor may check the lymph nodes under their jaw and on each side of their neck.
Swollen lymph nodes can be a sign that the body is responding to an infection. Why do you think this is?
6. An athlete injured their spleen during a game. At the hospital, doctors removed the spleen and then
recommended that the athlete get all their vaccines, including the flu vaccine. Vaccines are medicines that
help protect the body from infections. Explain why getting vaccines would be particularly important for
someone without a spleen.
7. Label two organs of the immune system on the figure below, and explain how they work together.
Figure 1. A diagram of the human body.
The Immune System
www.BioInteractive.org
Published March 2022
Page 3 of 6
PART 2: Immune Response
Continue to the “Immune Response” section of the Click & Learn, which explores how the immune system
responds to pathogens.
Read the “Overview,” then all the pages under the “Innate Immune Response” part of the “Timeline” tab. Stop
when you reach the “Adaptive Immune Response” page.
8. Determine whether each statement in the table below is true or false. Write your decision in the “True or
False?” column.
Statement
True or False?
Innate immune cells can distinguish between specific types of viruses and
bacteria.
Innate immune cells can activate adaptive immune cells.
The innate immune response provides longer-lasting protection than the
adaptive response.
The innate immune response includes phagocytes and proteins.
9. Cytokines are often referred to as “messengers.” Provide two examples of “messages” that cytokines can
deliver, and how cells or the body respond to each message.
10. Examine the diagram below. It represents some of the steps (A to F) that can occur when a person is
infected.
B A
C
E
D
F
Assign each letter in the diagram to a step in the table below. Some of the letters have already been filled in.
Steps
Letter
Phagocytes with antigens on their surface activate T cells to start the adaptive immune
response.
Pathogens get through the body’s physical and chemical barriers.
Innate immune cells, which include phagocytes, respond to the pathogens.
Pieces of pathogens (antigens) attach to proteins on the surface of phagocytes.
D
The adaptive immune response destroys the pathogens, and the infection ends.
The innate immune response destroys the pathogens, and the infection ends.
C
Read all the pages under the “Adaptive Immune Response” part of the “Timeline” tab. Stop when you reach the
“Repeated Infections” page.
11. In two or three sentences, describe how the innate and adaptive immune responses interact.
/ 6
End of Document
44
You May Also Like

FAQs of Immune System Student Worksheet General Immunology

What are the main types of immune cells and their functions?
The immune system consists of various cell types, including neutrophils, lymphocytes, eosinophils, monocytes, and basophils. Neutrophils are the first responders to infection, attacking pathogens through phagocytosis. Lymphocytes, which include T cells and B cells, play critical roles in adaptive immunity by recognizing specific antigens and producing antibodies. Eosinophils are primarily involved in combating parasitic infections, while monocytes differentiate into macrophages that engulf and destroy pathogens. Basophils release histamine during allergic reactions, contributing to inflammation.
How do vaccines work to protect the immune system?
Vaccines stimulate the immune system by introducing a harmless component of a pathogen, such as an inactivated virus or a piece of its protein. This exposure prompts the immune system to produce antibodies and memory cells without causing disease. When the vaccinated individual encounters the actual pathogen in the future, their immune system can quickly recognize and respond to it, preventing illness. This mechanism is crucial for controlling infectious diseases and has significantly reduced the incidence of illnesses like measles and polio.
What is the role of cytokines in the immune response?
Cytokines are signaling molecules that facilitate communication between immune cells. They play a vital role in regulating the immune response by promoting cell growth, differentiation, and activation. For instance, cytokines can enhance the activity of T cells and stimulate the production of antibodies by B cells. They also help coordinate the overall immune response by attracting immune cells to sites of infection and inflammation. Understanding cytokines is essential for developing therapies for various immune-related diseases.
What happens during an immune response to an infection?
When a pathogen breaches the body's physical barriers, innate immune cells, such as macrophages and neutrophils, respond immediately by engulfing the invaders. They release cytokines to signal other immune cells and initiate inflammation, which helps contain the infection. If the innate response is insufficient, the adaptive immune system is activated, involving T cells and B cells that specifically target the pathogen. This coordinated response ultimately leads to the elimination of the pathogen and the formation of memory cells that provide long-lasting immunity.
How does leukemia affect the immune system?
Leukemia is a type of cancer that affects the blood and bone marrow, leading to the overproduction of abnormal white blood cells. These cancerous cells can crowd out healthy blood cells, impairing the body's ability to fight infections. Patients with leukemia often experience a weakened immune response, making them more susceptible to infections. Treatment options, such as chemotherapy and bone marrow transplants, aim to restore normal blood cell production and improve immune function.

Related of Immune System Student Worksheet General Immunology