Sort the pictures into living and nonliving.

B/ Pair and Share/ 4min:

Indicate the characteristics that helped you identify things as living and nonliving.

a) Define the term microorganism in your own words

b) Give examples

One student form your group shares the answer here.

Name some ways USEFUL microorganisms can help our bodies.

One student form your group shares the answer here.

Copy the diagram and and refer to the text in the power point fill in the blanks

B/ Numbered heads together/ 2 min: Student 4 reports

agree on 1 answer then share it as 1 photo per group

1. Where the lymph nodes located in our body? And why?​

2. What is the function of the lymph nodes?

Read the text then answer the below questions. Correct your answers with a GREEN pen.

correct your answers with a colored pen

b) Examples of Microorganisms:

• Bacteria

• Viruses

• Fungi (like yeast)

• Protozoa

• Microscopic algae

living

Non living

Living

Living

Non living

Non living

Living

Non living

Non living

non living

Living

Living

Living

Non living

• Strengthen our immune system – They help us train and develop our immune system.

• Maintain a healthy gut lining – yhey improve the gut barrier and keep it strongg.

• 🧠 Support brain function – They influence the brain through the vagus nerve and by producing neurotransmitters.

• Help with digestion – it breaks down food our bodies can't digest on their own.

• produce vitamins – they make important vitamins like vitamin K and some B vitamins

• ♻️ remove toxins – They help break down or remove harmful substances from the body.

• ✋ Aid in skin healing

If they need shelter,water, and/or food to survive

1. Move – They can move by themselves (like animals walking or humans dancing)

2. Grow – They get bigger or change over time.

3. Eat and Breathe – They need food, water, and air to stay alive.

Example:

• A cat is living. It moves, eats, grows, and has kittens.

Nonliving things:

1. Don’t move on their own.

2. Don’t grow or change by themselves.

3. Don’t need food, air, or water.

Example:

• A rock is nonliving. It doesn’t eat, grow, or move by itself.

A microorganism is a living thing that is so small it can only be seen under a microscope. They can be helpful (like bacteria in our gut) or harmful (like disease-causing germs).

b) Give examples

• Bacteria

• Viruses

• Fungi

• Algae

b) bacteria,algae ,fungi

b) Examples:
Bacteria, viruses, fungi, and protozoa are all examples of microorganisms.

(from dictonary.com)

Fight bad germs

Make vitamins

Help the immune system

( from articleKidsHealth.org)

Human cells

Microorganisms, or microbes, are beneficial because theyhelp digest food, produce essential vitamins, and support a healthy immune system by preventing bad microbes from colonizing

1. Aiding digestion – breaking down food and making vitamins.

2. Boosting immunity – fighting harmful germs.

3. Protecting the gut and skin – keeping bad microbes away.

4. Supporting mental health – producing chemicals that affect mood.

5. Helping metabolism – processing nutrients and fats.

They basically keep our body balanced and healthy.

green: thymus

blue: bone marrow

yellow: spleen

grey:veins (blood vessels)

They filter lymph fluid and help the body fight infections by activating immune cells.

2. They filter lymph fluid and help the body fight infections by activating immune cells.

• Red Blood Cells: Carry oxygen.

• White Blood Cells: Fight infections.

• Platelets: Help blood clot.

• Plasma: Transports nutrients and waste.

White Blood Cells: Fight infections And viruses

Platelets: Helps blood

Plasma: takes nutrients and waste.

Lymph nodes are small, bean-shaped glands located throughout the body in clusters, such as the neck, armpits, and groin, and also in the chest, abdomen, and elsewhere. They are situated along lymphatic vessels, which are connected throughout the body. Lymph nodes function as filters for the body's lymphatic fluid, trapping and destroying harmful substances like bacteria, viruses, and cancer cells using white blood cells called lymphocytes.

2- Lymph nodes filter harmful substances like bacteria, viruses, and cancer cells from the lymph fluid and house immune cells called lymphocytes that destroy these threats.

• Filtering lymph fluid: Lymph nodes filter out foreign substances, such as bacteria and viruses, from the lymphatic fluid.

  1

• Storing and producing white blood cells: They store and produce white blood cells that help fight infections.

  1

• Destroying foreign invaders: As lymph fluid passes through the lymph nodes, immune cells destroy foreign invaders and remove damaged or cancerous cells.

  1

• Connecting lymphatic vessels: Lymph nodes are connected by lymphatic vessels that collect excess fluid from around cells.

  1

  
  Overall, lymph nodes are essential for maintaining a healthy immune response.

-Organs of the Immune System

2-Primary immune organs

• Bone marrow

• Thymus

• Secondary immune organs

  • Spleen

  • Lymph nodes

  • Lymphatic vessels(extra )

Types of immune response:

2. Cells responsible for each type:

• Innate immunity: Macrophages, neutrophils, dendritic cells, natural killer (NK) cells.

2-white blood cells also known as luekocytes.

2- B cells and T cells

2.The main immune cells are white blood cells, also called leukocytes, which include neutrophils, lymphocytes , monocytes/macrophages, eosinophils, and basophils.

sending leukocytes to fight against infections and diseasesntheres specifc immune response amd nin specific immune response

The cells responsible for nonspecofic Immune response are the monocytes and granulocytes whike the one involved in specofic is the lymphocytes

2)the main immune cells are blood cells neutrophils, lymphocytes, monocytes, eosinophils, and basophils

The macrophage

The B cell

The T cell