Viruses and Bacteria

Please check all the statements which are characteristics of bacteria.

• Bacteria are single celled

• Bacteria do not have a nucleus

• All bacteria are pathogens (cause disease)

• Bacteria are multicellular organisms

Please check all of the ways that a virus is different from a bacterial cell.

• Viruses are smaller than bacteria

• Viruses have DNA or RNA

• Viruses are single celled and have a nucleus

• Viruses are not made of cells

• Viruses cannot reproduce on their own; Bacteria can reproduce on their own.

Video Question: Every type of virus is very specific. That means each virus only infects certain types of organisms. True or False?

• True

• False

Viruses need to invade a cell in order to reproduce and more of the virus. True or false?

• True

• False

According to the video, after the host cell makes new viruses the host cell dies because the _________ is destroyed.

• Nucleus

• Cytoplasm

• Cell membrane

• Ribosomes

Bacteria harm cells by

• Destroying the infected cell by forcing it to make new bacteria

• Producing toxins which interfere with how the cell normally works