YR3_CH10_LSN2_pathogens

• Biologie
• Middelbare school
• havo, vwo
• Leerjaar 2

LESSON 2

CHAPTER 10: Immunity

Pathogens

ENTY TICKET

Go to KWIZL.EU en enroll using the following code:

Do the entry ticket assignment that is prepared for you!

PEER REVIEW

1. Using the answers, review the work of a fellow students
2. Provide feedback
3. Short discussion in class

Learning goals:

• I know what pathogens are.
• I  know how pathogens make us ill.
• I understand the difference between microbes and pathogens.

KEY WORDS:

• microbes
• pathogens
• bacteria
• viruses
• fungi
• parasites

Review the keywords with your table mate and make changes if needed

What is a pathogen?

• Any organism that causes disease
• Actually: microorganism/microbe that causes disease
• microscopic, unicellular plants and animals are called protozoans
• microorganism = organism of microscopic size
• multicellular, macroscopic organisms that cause disease = parasites

Drag and drop: to what group does the pathogen belong?

virus

bacterium

fungus

protozoan

parasite

Diseases caused by viruses

chicken pox

common cold

flu (influenza)

rabies

COVID-19

ebola

herpes

Diseases caused by bacteria
cholera

tyfoid fever

plague

tuberculosis

multiple infections

Diseases caused by viruses

chicken pox

common cold

flu (influenza)

rabies

COVID-19

ebola

herpes

and many more...

Diseases caused by bacteria
cholera

tyfoid fever

plague

tuberculosis

tetanus

multiple infections

and many more...

Diseases caused by fungi

athlete's foot

ringworm

candiasis

and many more...

Diseases caused by protozoa
malaria

African sleeping disease

toxoplasmosis

leishmaniasis

and many more

Transmission

• the spreading of pathogens (thereby increasing the rate of infection
• How to prevent disease in the first place?

Prevent transmission!

Describe different ways to prevent transmission of pathogens

Assignments on classroom

work through the assignments on lesson 2.

HOMEWORK for lesson 3:

Complete these assignments

Assignments on classroom

ANSWERS

Assignment 1:

1. All microbes are bad for you. FALSE

2. All pathogens can make you ill. TRUE

3. All pathogens produce toxins that make you ill. FALSE

4. All pathogens are living organisms. FALSE

5. Parasites are the largest of the pathogens. TRUE

Assignment 2

1. Athlete’s feet is a pathogen:

a. Which pathogen causes it? A FUNGUS

b. How does it spread? BY DIRECT CONTACT, TOUCHING INFECTED SKIN, OR TOUCHING SURFACES THE INFECTED SKIN HAS BEEN IN CONTACT WITH

c. How can you prevent it? DRYING WELL IN BETWEEN YOUR TOES & WEARING FLIP FLOPS AT PUBLIC BATHS AND SWIMMING POOLS.

Assignment 2

2. Salmonella is a dangerous pathogen:

a. Which pathogen causes it? A BACTERIUM

b. How does it spread? IT SPREADS THROUGH UNCOOKED EGGS AND CHICKEN

c. How can you prevent it? PROPER KITCHEN HYGIENE AND MAKE SURE YOU COOK EGGS AND CHICKEN PROPERLY

Assignment 2

3. Name 4 microbes that are not harmful and explain what they do.

• Fungi like yeast or bacteria like Lactobacilli Are essential in the food industry.
• Species of bacteria as Streptomyces Are responsible for the production of more than 500 different antibiotics. Similarly, there are antibiotics produced from fungi and other types of bacteria.
• Microorganisms play a vital role in the handling and disposal of domestic and industrial waste. They are responsible for cleaning the waste through a biological process of decomposition or stabilisation of organic matter. 
• The microflora is also responsible for defending the body from fungi and bacteria harmful to human health. It produces vitamin K, which is necessary to regulate blood clotting processes.

HW for lesson 2

Complete the assignments on Lessonup for lesson 3:

- write down the learning goals

- write down the key words

- read the pages of your kerboodle book (screenshots on Google Classroom)

- watch the video

- complete your notes