Viruses

glycoprotein projections found on a virus functions:

• Allow virus to attach to the host cell

• To signal other viruses

• To obtain nutution

• For movement

How do viruses infect cells

• they reproduce in the body

• they destroy our nervous system

• they enter body cells and replicate

• the from new cells

steps to the lytic cycle

• enter, attach, replicate, release

• attach, enter, replicate, release

• replicate, attach, release, enter

• release, replicate, attach, enter

How do probiotic bacteria benefit our health

• digestive enzymes kill the bacteria

• beneficial bacteria remove all other microorganisms so that no other bacteria survive

• these bacteria aid in digestion and nutrient absorption

• these bacteria are extremely harmful

Tags

NGSS.MS-LS1-7

Anti Virals are used to help treat symptoms of viruses. Why must they be take within 48 hours of the appearance of symptoms from the flu or other viruses?

• To wake up the immune cells

• so that the virus cannot evolve

• because the flu replicates quickly inside cells

• because it gets rid of the host cell

What type of cells does HIV infect?

• reproductive cells

• digestive cells

• T4 immune cells

• red blood cells

Viruses are not living and must replicate using--

• a host

• other viruses

• a nutritional supplement

• their environment

What is the function of cilia around a cell

• they attract other cells

• they create proteins

• they protect the cell

• the move fluid to allow for movement

Tags

NGSS.MS-LS1-2

If a company wants to create an antiviral for Ebola what information must they know about the virus?

• how closely related it is to other viruses

• Ebola's mechanism for infecting cells

• how the virus creates energy

• how the virus undergoes cell division

A person with a lysogenic virus often does not display symptoms. What is the virus doing during this time?

• producing harmful bacteria to kill cells

• the virus bursts out of the cells

• the virus lays dormant inside the cells DNA

• the virus is replicating quickly