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MOAR FUKIN SCIENCE QUESTIONS
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Trar Away
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Post: #1
MOAR FUKIN SCIENCE QUESTIONS

1. What is a virus?

2. How are viruses similar to organisms?

3. Scientists hypothesize that viruses could have not existed on Earth before organisms appeared. Use what you know on viruses to support this hypothesis.

4. What basic structure do all viruses share?

5. What role do the proteins in a virus's outer coat play in the invasion of a host cell?

6. How does an active virus multiply?

7. List the additional steps that occur when a hidden virus multiplies.

8. Do you think that the cold virus is an active virus or a hidden virus? Explain.

9. What is often the best treatment for viral diseases?

10. How are vaccines important in preventing viral disease?
01-21-2009 10:56 AM
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ChickenLeg Offline
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Post: #2
Re: MOAR FUKIN SCIENCE QUESTIONS

Trar Wrote:1. What is a virus?
It is an organism with very few components in comparison to cells, and it usually results in diseases in living organisms.
2. How are viruses similar to organisms?
Viruses have strands of DNA/RNA
3. Scientists hypothesize that viruses could have not existed on Earth before organisms appeared. Use what you know on viruses to support this hypothesis.
Viruses need to infect cells in organisms, as viruses can't reproduce by themselves.
4. What basic structure do all viruses share?
Protein coat, and either DNA or RNA
5. What role do the proteins in a virus's outer coat play in the invasion of a host cell?
The protein coats have enzymes that attach to many different types of host cells.
6. How does an active virus multiply?
They infect the cell with a copy of DNA/RNA by attaching to the host cell with its enzymes.
7. List the additional steps that occur when a hidden virus multiplies.
It makes the cell start reproducing these strands into virsuses, which swell the cell up until it explodes, releasing the viruses to infect other cells and repeat the process.
8. Do you think that the cold virus is an active virus or a hidden virus? Explain.
Active virus
9. What is often the best treatment for viral diseases?
Lots of rest and fluids and let your body take care of the disease itself.
10. How are vaccines important in preventing viral disease?
Vaccines introduce dead or dying viruses into the body, which results in the immune system producing T-bodies to help kill these weakened invaders. The T-bodies remain after the virus is eradicated, and providing there isn't a mutation in the virus, one will likely never suffer from the full-blown disease

Hope that helps. Wink

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01-21-2009 03:00 PM
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aerftghyjk Offline
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Post: #3
Re: MOAR FUKIN SCIENCE QUESTIONS

d
01-19-2010 09:14 AM
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Loxor Offline
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Post: #4
Re: MOAR FUKIN SCIENCE QUESTIONS

Wow, what the hell Memento?

Anything that ever happened or will... one condition, it has to be amazing.

I gave her wings but she don't wanna fly no more.

I'm sittin' on the dock of the bay
Watching the tide roll away
Ooo, I'm just sittin' on the dock of the bay
Wastin' time
01-19-2010 09:16 AM
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flea77 Offline
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Post: #5
Re: MOAR FUKIN SCIENCE QUESTIONS

I want to revise these answers a little bit. I'm not sure if you have turned in your homework or not


Trar Wrote:1. What is a virus?
The key answer here is that viruses are infectious, metabolically inert, and depend on a living host for replication

2. How are viruses similar to organisms?
SOME viruses have DNA based genomes.

3. Scientists hypothesize that viruses could have not existed on Earth before organisms appeared. Use what you know on viruses to support this hypothesis.
ya the other answer was perfect.

4. What basic structure do all viruses share?
nucleic acid based genome (either RNA or DNA based) with a protein shell (the capsid)

5. What role do the proteins in a virus's outer coat play in the invasion of a host cell?
The capsid is essential first of all because its the only thing separating the virus genome from the outside. Capsids are essential for invasion because it all depends on small surface antigens. It will find a cell which has complementary receptors. Then it can enter by three main methods, either by a direct injection of the genome, membrane fusion, or endocytosis (the cell essentially taking it up).

6. How does an active virus multiply?
(below answer)


7. List the additional steps that occur when a hidden virus multiplies.
By hidden virus, I'm making the assumption your teacher is talking about viruses that reproduce through lysogenic v. lytic cycle. In lysogenic viruses, the viral genome integrates itself directly into the host cell DNA, so that the host cell replicates it alongside the host cell DNA. This integrated DNA becomes known as a prophage. This is v. lytic viruses which essentially destroy the host cell DNA by disregarding it (these viruses take over the mRNA of the host cell and can then only chose to reproduce themselves, so the host cell DNA is disregarded and the metabolic necessities of the host cell are therefore disregarded).

So in both viruses, the same thing is happening (the virus is taking over the host cell reproduction to produce its own proteins). However, in the lysogenic cycle the extra step is integrating itself into the host DNA.

8. Do you think that the cold virus is an active virus or a hidden virus? Explain.
I am pretty sure cold viruses are lysogenic. I could be wrong.

9. What is often the best treatment for viral diseases?
The best step is typically immunizations when they are available, but there are anti-virals on the market now... not sure what she's wanting in this question

10. How are vaccines important in preventing viral disease?
Most vaccines alert the bodies immune system so that they will produce antibodies to a "sample" of the target virus. This way the body is more likely to be able to ward off a potential infection. I think the other persons answer was much better than mine

The only reason why I rewrote a couple of these quesetions is because I think you were missing the really important thing in the definition of a virus. Viruses are not really organisms as (although its debatable), the majority of scientists don't consider them living as they are metabolically inert

hope this helps
02-01-2010 07:54 AM
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Colin Offline
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Post: #6
Re: MOAR FUKIN SCIENCE QUESTIONS

Gee, you're about 12 days late.

PLEASE, TELL US JUSTIN
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02-01-2010 08:07 AM
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CrayolaColours Offline
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Post: #7
Re: MOAR FUKIN SCIENCE QUESTIONS

Colin Wrote:Gee, you're about 12 days late.
Look again. the OP was posted January of 09.

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Quote:Riddle me this, riddle me that. Give me a straight answer, you pain in the ass cat.
02-01-2010 08:08 AM
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Colin Offline
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Post: #8
Re: MOAR FUKIN SCIENCE QUESTIONS

CrayolaColours Wrote:
Colin Wrote:Gee, you're about 12 days late.
Look again. the OP was posted January of 09.
OH SHI-
Sorry, a year and 11 days.

PLEASE, TELL US JUSTIN
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02-01-2010 08:10 AM
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Loxor Offline
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Post: #9
Re: MOAR FUKIN SCIENCE QUESTIONS

LOL

Anything that ever happened or will... one condition, it has to be amazing.

I gave her wings but she don't wanna fly no more.

I'm sittin' on the dock of the bay
Watching the tide roll away
Ooo, I'm just sittin' on the dock of the bay
Wastin' time
02-01-2010 08:42 AM
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flea77 Offline
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Post: #10
Re: MOAR FUKIN SCIENCE QUESTIONS

lol my bad
02-01-2010 08:45 AM
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