Day 1 Evaluate Viruses (google form)

An antiviral drug specifically modifies viral receptors on a host cell. How might this affect the viral reproductive cycle?

• It would help facilitate viral endocytosis.
• It would prevent viruses from attaching to the host cell.
• It would destroy the virus’s capsid.
• It would prevent exocytosis.

These viruses need what in order to reproduce?

• to undergo mitosis

• oxygen

• antibiotics

• a host cell

Which part of the virus is DNA?

• a

• b

• c

• d

• e

Particles made up of proteins, nucleic acids, and sometimes lipids that can only reproduce by infecting living cells are called--

• Bacteria
• lysogenic
• viruses
• capsids

Which of the following is a trait that a virus shares with a living organism?

• They use oxygen
• They have genetic material
• They grow
• They digest food

Oncoviruses (temperate virus)are a type of animal virus that can cause an abnormal, often excessive, growth of tissue, developing cancer. Which type of virus is likely to be an oncovirus?

• Lytic virus
• Bacteriophage virus
• Lysogenic virus
• Influenza virus

Why do viruses cause humans to have symptoms such as the one shown in the image?

• A. Viruses are often inhaled, and when they reproduce, they line your airways causing excess mucus.
• B. Fever is the result of exocytosis of the viruses from the cell.
• C. Fever is a result of the DNA being altered in the animal’s cells.
• D. The virus produces mucus as a byproduct of replication.

What kind of cells make up viruses?

• unicellular

• eukaryotes

• prokaryotes

• none of these, viruses are not cells

What is the main function of the projections on the surface of a virus?

• They aid in respiration
• They help the virus grow
• They help the virus invade its host by attaching to specific sites on the host
• They help the virus digest food molecules

PART B Which structure is present in all viruses regardless of their structure?

• A. Protein spikes
• B. Capsid
• C. Envelope
• D. Tail