Click and Learn Virus Explorer Student Worksheet ABOUT THIS WORKSHEET This is wo

Question

Click and Learn Virus Explorer Student Worksheet ABOUT THIS WORKSHEET This is worksheet complements the Click and Learn "Virus Explorer" developed in conjunction with the 2016 documentary, Spillover: Zika, Ebola & Beyond Ihttp://www.hhmlora/bicinteractive/virus: explorer). PROCEDURE Follow the instructions as you proceed through the Click and Learn, and answer the questions in the spaces provided. 1. Let's review. Click on the "About" tab at the bottom. Read the information and list four (4) ways in which viruses can differ from each other 2.This interactive uses several abbreviations. Fill in what each abbreviation stands for in the table below: Abbreviation bp ds i on these icons and answer the questions below associated with each viral characteristic 3. Close the "About" window, and locate the next to each viral characteristic tab across the top. Click a. Envelope: Not all viruses have an envelope. If a virus has this outer layer, explain how it forms. b. Structure: What determines the shape of the capsid, or core? Published September 2016 www.Blolnteractive.org Page 1 of s

Explanation / Answer

1.

Four ways in which viruses differ from each other are:
i) Presence of DNA or RNA as the genetic material of the virus, but never both of them are present. several configurations of nucleic acid are possible such as ds DNA, ss DNA, ds RNA, ss+ RNA, ss - RNA and Retro RNA.
ii) They differ from each other on the basis of capsid coats. It can be composed of a single or multiple proteins.
iii) Presence or absence of an envelope. It is of two types, enveloped or naked virus and enveloped virus resembling the cytoplasmic membrane of the host cell.
iv) They can be classified according to their shape helical, polyhedral, Icosahedral.
2.
Abbreviation Description
nm Nanometer
bp Base pair
ss Single-stranded
ds Double-stranded
3. The formation of envelope takes place during the lytic phase of the life cycle of the virus during which the phage particles come out by bursting the cell membrane of the of the host organism. The envelope is mainly composed of cell membrane phospholipid and protein and with some viral glycoproteins.
4. Composition and arrangement of capsomers determines the quaternary shape of the protein coating around the genetic material protecting the viral genome.

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.