Deep Rising
1998
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So the virus has to somehow convince the cell that it's a non-foreign particle. We could do hundreds of videos on how viruses work and it's a continuing field of research. But sometimes you might have a virus that just gets consumed by the cell.
- 23 min
- Sal Khan
- So, viruses are with you all the time? You never fully get rid of them?It depends, some viruses that your body has managed to adapt to might still be in your system just unable to affect you, while others are expelled...
- Is virus the same as prion?No, it's not. A virus has a shell that contains it's RNA, and reproduces by hi-jacking a normal cell's mechanisms. A prion is a protein, with no sh...
- When cells are taken over by viruses, can the cells take back control?In a way, yes. White blood cells and other good body substances are specially made to attack the viruses. The attacked cells become weaker, but whi...
- Wait , at 4:45, sal draws a cell that he later(5-10 sec) mentions that the othe two sides will merge...I think it might have been a white blood cell, which is what attacks problems it is alerted to within the body.
- So what if a virus enters bad bacteria cells? Will that just make it even worse?No, in fact, this is being explored as a method to fight certain types of diseases.
- Awesome Video! In other words, do viruses invade cells?Yep, not only invade, but completely 'hi-jack' the cells systems, and 'rip' the cell apart to make more of them... poor cells :(
- in lytic cycle the viral rna by hijacking the machinary of cell form viral protein only viral protei...It depends whether ther are ssRNA or dsRNA viruses. In ssRNA: RNA viruses can be further classified according to the sense or polarity of their RNA...
- Without have a virus in our cells is it possible for a mutation to produce a protein that harm us? C...I think it is rather unlikely that a spontaneous mutation would just so happen to produce a protein that would be identical to a protein produced b...
- Are viruses dead or alive?Though viruses are not considered "dead" per se, they are similarly not considered alive. Of the eight characteristics of life (cells, homeostasis,...
- How does the virus know what matter (cell or bacteria) to attack? I mean, I assume this is not a sma...A virus does very little "on purpose", because it is so small and simple. Each virus has its specific "prey" that is determined by the proteins in...
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Learn about their distinct characteristics, including their minuscule size, unique shapes, and the types of nucleic acids they contain. Discover how these obligate intracellular parasites infiltrate host cells and replicate, and how they're classified based on their host type. Questions. Tips & Thanks.
- 11 min
- Since viruses can't produce their own energy, they would be unable to self-propel, right? How do the...Viruses have a protein capsid that allows them to interact with specific receptor proteins on specific cells. This is a response to evolutionary pr...
- SO viruses are classified based on size, shape of protein, type of nucleic acid, and hacking method?The Baltimore Classification separates first by genetic material (DNA or RNA), and then by format: double stranded, single stranded positive, or si...
- Are the envelopes around viruses anything like the membranes of cellular life?Yes! That is where they get their envelopes from in the first place! But only animal viruses can have envelopes on them; Phages (bacterial viruses)...
- what is the Baltimore classification? I understand the ones mentioned but my textbook keeps talking ...The Baltimore classification system just allows you to group viruses based on their genome and how they replicate
- virion particles (virions) function for transmission, correct?Virions are not part of the virus, they are viruses itself. But, are [peculiar because theses are the infective form of viruses outside the host ce...
- Viruses do not consist of cells and also lack cell membranes, cytoplasm, ribosomes, and other cell o...They wouldn't be viruses
Jun 2, 2021 · Coronavirus disease (COVID-19) advice for the public: Videos. All videos →. Page updated 2 June 2021. Science in 5 is WHO’s conversations in science. Watch WHO experts explain science related to COVID-19 in this weekly series. How the COVID-19 virus is transmitted. Find a mask that fits your face the best.
May 12, 2021 · Decoded: What Is a Virus, Exactly? These sometimes deadly packets of genetic information are more numerous in number than the stars in the cosmos. By Michael Tabb, Andrea Gawrylewski & Jeffery...
- 4 min
