Viruses and Bacteria

Which of the following is true for both bacteria and viruses? (a)  

• both contain genetic material
• can be killed using antibiotics
• have a cell membrane
• have a protein coat

Can a virus be cured with antibiotics?

• yes

• no

Vaccines are made from

• dead or weakened viruses
• fungi
• allergens
• strong, active viruses

Why do scientists classify viruses as non-living?

• They DO respond to a stimulus
• They need a host's energy because they do not have their own energy 
• They produce wastes
• They are really small 

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

What might happen if you didn't have bacteria in your digestive tract?

• Your intestines would shut down

• Your body couldn't break down certain types of food

• You would never get sick

• You wouldn't be able to eat vegetables

What do all bacteria have in common?

• They all have cell nuclei.

• They're all multi-cellular organisms.

• They're all single-celled organisms.

• They can all be found inside the human body

What would happen to a virus if it couldn't find a host cell to invade?

• It wouldn't be able to multiply

• It wouldn't be able to travel through the air

• Its genetic information would wither away

• . It would survive indefinitely

What does a virus do once it's inside one of your cells?

• It stays inside the cell for a while, and then leaves

• It eats up all of the machinery in the cell

• It uses the cell's machinery to make copies of itself

• It prevents the mitochondria from converting glucose to ATP

A bacterium reproduces asexually by dividing to form two new bacterial cells. What is the name of the process by which bacteria reproduce?

• meiosis

• budding

• binary fission