Bacteria and Viruses

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

What happens in the lytic cyle?

• Virus goes in and leaves the host cell
• Virus quickly kills the host cell
• Virus sleeps inside of the host cell
• Virus stay dormant for a long time

What happens in the lysogenic cycle? 

• Virus goes in and leaves the host cell
• Virus quickly kills the host cell
• Virus inject the nucleic acid into the host cell, and the nucleic acid integrates into the host cell DNA, and stay dormant for a long time
• Bacteria injects DNA into a host cell

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