Bacteria and Viruses

Which microorganisms are always harmful?

• Bacteria

• Microbes

• Pathogens

• Viruses

How many microbes are there in the world according to what we learned?

• Trillions upon trillions

• Billions

• Millions

• Thousands

Where are bacteria located?

• No where.

• Every where!

• Only in the restroom.

• On my hands only.

Viruses require a host cell to

• Breathe and eat

• Replicate

• Move and sleep

• Make protein and carbohydrates

What is a host?

• An organism that eats another organism

• An organism or a cell that the virus needs to reproduce in

• Something that causes harm to the cell

• The person that greats you at a resturant

One important way to control the spread of viruses in through

• the use of vaccines

• drinking a lot of tea

• the use of other types of bacteria

• the use of antibiotics

Bacteria come in which of the following shapes?

• rod, cone, spiral

• rod, sphere, spiral

• rod, sphere, cone

• sphere, cone, spiral

Which of the following is a true statement about bacteria?

• Bacteria exist in only a few environments on earth

• Bacteria can grow to extremely large sizes

• Most bacteria are harmful to humans

• Bacteria can be both harmful and helpful to humans

Which is true about the bacteria in your digestive tract (gut)?

• Beneficial bacteria limit the food and space available for harmful bacteria to reproduce

• Beneficial bacteria break down certain types of food

• Beneficial bacteria help the body produce immune cells and mucus to fight disease

• All of these are true

What are viruses?

(choose the suitable answer.)

• Viruses are the living things hijack cells to make a copies of themself.

• Viruses are the living things can't reproduce on their own.

• Viruses are the living things that is used to treat bacterial infections.

• Viruses are the nonliving protective shell with genetic material inside of it.