HAPPY WEDNESDAY Bellwork

Bellwork: Draw and Label the viruses above using the following terms: Capsid, DNA/RNA,

Envelope.

Happy TuesdayBellwork

Draw and Label the viruses above using the following terms: Capsid, DNA/RNA,

Envelope.

CAPSID DNA RNA

CAPSID

CAPSIDRNA

ENVELOPE

Virus and Microorganisms Notecards4th and 5th Period

Due Wednesday (2/18/15)

Essential Question:

How does a virus reproduce?

Standard: describe viral reproduction (B4C)

Virus HW QuizOn a sheet of paper, answer two out of the three questions. Must be in your own words. Each question must be answered in 1 paragraph (5-7 sentences OR half a page).1.Why are viruses not living organisms?

2. What is a virus?

3. How do viruses harm us?

Page 58: Virus Reproduction

Notes

H. Viral Reproduction1. Once viral genes are inside the host cell, two processes

may occur: the lytic cycle or the lysogenic cycle.

Lytic Cycle

Lytic Cycle (BANG BANG!)1. The Virus attaches to the outside of the cell.2. Viral genes are inserted into a host cell.3. Virus parts are made/replicated.4. Virus parts are assembled.5. The host cell bursts/lysis and is destroyed6. New viruses infect new host cells.

Lytic Cycle- Viruses

Create an analogy………

Partner 4: The Lytic Cycle is like a ___________ because ___________.

Partner 3: I agree OR disagree because ______________________.

Lysogenic Cycle• Hidden viruses “hide” for a while inside host cells

before becoming active

Steps to the Lysogenic Cycle:1. Attach to cell2. Inject DNA/RNA3. Integrate/Join DNA/RNA into cell4. Wait5. Remove DNA/RNA6. Become active (lytic cycle)

Lysogenic Cycle- Viruses

Create an analogy………

Partner 3: The Lysogenic Cycle is like a ___________ because __________.

Partner 4: I agree OR disagree because ______________________.

DRAW THIS!!!

Sage and Scribe: Cycle Steps

• Get into partners—decide who is partner A and who is partner B.–Partner A: Describe the steps for the Lytic

cycle.–Partner B: Draw each step.

• After a few minutes, we will switch to the Lysogenic Cycle and you will switch roles.