Health4

• Biologie
• Middelbare school
• havo
• Leerjaar 3

Specific white blood cells create?

1. Antigens that connect to a virus or bacteria
2. Antibodies that connect to antigens of pathogens
3. Antigens that connect to antibodies
4. Antibodies that will kill bacteria and viruses

If an antibody is connected to the antigen of the virus or bacteria....

1. it will kill it
2. Specific white blood cells will come and kill them
3. Specific white blood cells will make more of the same antibodies
4. A-specific white blood cells will come to phagocyte them

What vaccinations did you have?

How do vaccinations work?

There are different variants of the Covid 19 virus. Can you give some examples? How do they develop and what is the effect of this on vaccines?

00:45

How does the virus multiply?

01:24

What do the antibodies attach to?

1. antigens
2. DNA
3. the cells producing the virus
4. specific white blood cells

01:56

What is mRNA?

1. Genetic Material
2. A virus
3. An antigen
4. An antibody

03:39

What is a B-cell

1. An antibody producing cell
2. An infected cell
3. A Bacteria
4. A specific white blood cell

Answers?

Are there also vaccines against bacteria?

What is being studied in clinical trials

1. Safety
2. Side effects
3. Efficacy (does it work?)
4. Dosage

Homework

Today:

Answer the questionnaire

Answer questions 6-9 on page 159

For next week: Answer questions 18-21 on pages 177-178