Immune System
How does our mucus help protect us from germs infecting us?
What are 3 ways to prevent disease spread?
Possible answers: Hand washing/using hand sanitizer, social distancing, wearing face masks, vaccines, covering coughs/sneezes, cleaning surfaces
What tool can we use to look closely at small germs like bacteria?
Microscopes!
What is one way viruses (and other germs) spread from person to person?
Coughing/sneezing or touching contaminated surfaces
What do living germs (like bacteria) need in order to grow and reproduce?
Energy! (e.g. sugar)
What are 2 things in our nose that help prevent germs from getting into our bodies?
Nose hair and mucus!
When washing your hands, use ____ and wash for at least __ seconds
When washing your hands, use SOAP and wash for at least 20 seconds
Are viruses living or non-living? Explain why
Non-living! They cannot reproduce on their own (they require our cells to reproduce)
In what mixture did our yeast not grow well in?
The mixture with the vinegar (water + sugar + vinegar)
________ help prevent us from getting sick by training our immune system to fight a disease
Vaccines!
What are 3 things that make a good face mask?
Covers nose and mouth, has a filter, and you are able to breathe in it
What are the 2 main parts that make up a non-enveloped virus?
RNA or DNA and a protein shell
Are all bacteria bad for us and make us sick?
No! There are some good bacteria that help our body (e.g. digest food)
Name a cell in our immune system (any cell)
Example answer: White blood cell - traps and eats (kills) germs in our body
Which 2 materials did we use to make our hand sanitizer?
Isopropyl alcohol and aloe vera
What is the outside membrane of an enveloped virus made of?
Fat (lipids)! The membrane is called a fatty (lipid) membrane
Bacteriophage!
What does our immune system use to tag germs to remove them from our body?
Antibodies!
What are 3 components you should add when designing a building that will help reduce disease spread?
Good ventilation (windows/vents/doors), Space (large hallways and rooms), and Places to wash hands/use sanitizer
What is the ELISA test for?
It tests if someone is sick! (and diagnoses them)
In our virus membrane experiment, why did the enveloped virus break apart in the soapy water?
Because the enveloped virus has a fatty membrane! Fat dissolves in soapy water ("like dissolves like")