Bacteria Vs. Virus At A Glance<\/h2>\n
The key difference between a virus and bacteria is that viruses can’t survive on their own and they need to live inside another organism to survive<\/strong>, while bacteria can make it by themselves<\/strong> and their world won\u2019t crumble if left on their own.<\/p>\n This is just the most obvious difference between these tiny organisms, but the two couldn\u2019t be more different.<\/p>\n In fact, comparing a virus to a bacterium is like comparing a butterfly to a polar bear<\/strong>.<\/p>\n Bacteria<\/strong> are far more complex<\/strong> than viruses. Since they can survive without anyone else\u2019s help, they\u2019re considered to be living organisms<\/strong>. They\u2019re also usually harmless<\/strong> \u2014 in fact, just 1<\/a>% of bacteria can make you sick!<\/p>\n Another significant difference between a virus and bacteria is their size \u2014 most viruses are smaller than the smallest bacteria<\/strong>! This is particularly interesting considering that most viruses cause diseases and hurt their host.<\/p>\n Now, let\u2019s explore in greater detail what viruses and bacteria are to understand their dissimilarities better.<\/p>\n Meet the Bioverse characters!<\/a><\/p>\n A virus is a microbe \u2014 a tiny menace notorious for the harm it can cause to its host.<\/p>\n Most viruses range in size from 20 to 400<\/a> nanometers<\/strong>, although some of them, such as the Ebola virus, can extend their diameter from 80 to 1000 nm!<\/p>\n To understand how small a nanometer is, imagine this: a single strand of human hair is around 80,000 to 100,000<\/a> nanometers wide! Viruses are so small that it\u2019s impossible to spot them with the naked eye!<\/p>\n However, despite their minute build, viruses surely do pack a punch.<\/strong> And there are so many of them!<\/p>\n Scientists say there are 10<\/a> nonillion viruses on Earth<\/strong> \u2014 that is one followed by 31 zeroes! Even though the number of viruses is staggering, there are even more bacteria on our planet<\/strong>. We\u2019ll discuss this soon!<\/p>\n We mentioned that, unlike bacteria, viruses are not considered \u201calive\u201d.<\/p>\n They can\u2019t replicate on their own, and they need a living organism to do the job for them.<\/strong> This is arguably the most significant difference between a virus and bacteria!<\/strong><\/p>\n Anyone can host a virus \u2014 you, an animal, a plant, even bacteria!<\/strong> \u2014 and so anyone can help it reproduce.<\/p>\n Viruses are obviously not too picky when choosing a place to live. What matters to them is that their host is alive, so they can try to hijack its cells and use the cells\u2019 proteins to grow in numbers<\/strong>.<\/p>\n After all, the only goal viruses have is to make more viruses!<\/strong><\/p>\n Now, have you ever wondered what viruses are made of?<\/p>\n Every virus contains:<\/p>\n The viruses that contain only the genetic material and the capsid are called non-enveloped<\/strong> viruses. For instance, a Rhinovirus that causes the common cold is a non-enveloped virus:<\/p>\n A naked, non-enveloped virus causes the common cold!\u200b<\/p><\/div>\n On the other hand, some viruses contain a lipid envelope<\/strong> around the capsid. The envelope further protects the DNA or RNA, but it also helps keep a virus under the immune system\u2019s radar<\/strong>.<\/p>\n Think of the envelope as some sort of a ghillie suit that helps viruses pass for the host\u2019s cells!<\/p>\n For example, the influenza virus and the SARS-CoV-2 coronavirus are both enveloped viruses.<\/p>\n The viruses get the lipid envelope from the host.<\/p>\n And how does that happen?<\/p>\n During the process of the so-called \u201cbudding,\u201d<\/strong>\u00a0a virus exits the cell it has previously used to replicate. Since it no longer needs that particular cell\u2019s mechanisms, it wants to leave it. On its way out, a virus pierces the cell\u2019s membranes, which leaves it wrapped in a lipid envelope.<\/strong><\/p>\n During budding, a virus may also acquire glycoproteins<\/strong>, i.e. molecules that contain carbohydrates (sugar molecules) and a protein.<\/p>\n Glycoproteins are important for you because they participate in your body\u2019s immune response, and they also allow your B-Cells<\/a> to travel through your body. Moreover, your blood type depends on which glycoproteins your red blood cells contain.<\/p>\n Viruses that have a lipid membrane and glycoproteins on it are usually illustrated with spikes and knobs<\/strong>. For instance, the SARS-Cov-2 coronavirus looks like this:<\/p>\n Check out the spikes on the SARS-Cov-2 coronavirus!\u200b<\/p><\/div>\n Compare the surface of an enveloped virus with that of non-enveloped menaces \u2014 the latter certainly look bland without the membrane and the \u201caccessories\u201d made out of glycoproteins.<\/p>\n When a virus ends up with glycoproteins on its surface, it uses them to interact with its surroundings.<\/p>\n Viral glycoproteins scan the viral receptors every cell in your body has<\/strong>, and, when they recognize the appropriate host, they bind with it. And that\u2019s when a virus can start infecting a cell!<\/p>\n A virus only wants to infect a cell to use it to reproduce! But we\u2019ll talk about viral reproduction in a bit!<\/p>\n Now, no matter how tough and protected viruses tucked into a lipid membrane may seem, you can easily destroy most of them while they\u2019re still on the skin\u2019s surface<\/strong>.<\/p>\n Can you guess how?<\/p>\n With water and soap!<\/strong> Even alcoholic hand sanitizers with at least 60% alcohol work like a charm against enveloped viruses.<\/p>\n On the other hand, viruses without the lipid envelope are harder to destroy<\/strong> and more resistant to disinfectants. To defeat them, your body\u2019s lymphocytes<\/a>, macrophages<\/a> and neutrophils<\/a> may need antivirals as allies to win the battle!<\/p>\n Discover interesting facts about all microbes \u2014 the tiny menaces in your body!<\/a><\/p>\n Viruses grow in numbers either through the lytic or lysogenic cycle.<\/p>\n The lytic cycle<\/strong> happens when a virus enters a cell and uses its metabolism <\/strong>to create new proteins and nucleic acids. A virus then creates new cells, eventually causing the host cell to burst, i.e. lyse. The newly-created viruses continue their journey and look for other host cells to continue their mission of growing in numbers.<\/p>\n The lysogenic cycle<\/strong>, on the other hand, occurs when the viral genetic material integrates with the host\u2019s DNA<\/strong>. So, when the host cells replicate, the viral DNA tags along. As a result, the host\u2019s daughter cells are infected with the virus.<\/p>\n Find out more fun facts about your body!<\/a><\/p>\n Bacteria are also microbes with a bad reputation, but unlike viruses, they don\u2019t really deserve theirs.<\/p>\n As we mentioned earlier, only a small percentage of bacteria can hurt you.<\/p>\n So, what\u2019s the deal with the rest of the bacteria?<\/p>\n Well, about 99% of bacteria are the good guys that make our lives a lot easier<\/strong>.<\/p>\n Bacteria help you do many things, like digest food, absorb nutrients, and get rid of harmful cells, but also kill off other microbes while fighting for resources within your body<\/strong>.<\/p>\n Did you know that bacteria also make your life taste better<\/strong>? When you add them to milk, they help turn it into yogurt!<\/p>\n These simple organisms make up the majority of your body. How crazy is that?!<\/p>\n Your body contains around 30 to 40<\/a> trillion cells, but it also contains just as many bacteria and then some!<\/p>\n Although some experts say that the ratio of bacteria to cells is 10:1, the more recent research shows that it\u2019s likely smaller \u2014 around 1:1<\/a>.<\/p>\n Bacteria are everywhere, and you can find them just about everywhere on our planet. According to research, there are five million trillion trillion<\/a> bacteria on Earth \u2014 that\u2019s a five followed by 30 zeroes!<\/p>\n Bacteria come in many sizes and shapes.<\/strong> For example, an average rod-shaped bacterium has a diameter of approximately 0.25 to 1.00<\/a> micrometers, whereas the diameter of a spherical bacterium ranges between 0.5 \u2013 2 micrometers.<\/p>\n Most bacteria are round-. rod-, or spiral-shaped.\u200b<\/p><\/div>\n One micrometer has 1,000 nanometers, so it\u2019s clear that, compared to viruses, bacteria seem gigantic! However, they\u2019re still way smaller than an average hair strand which is approximately 80,000 to 100,000 nanometers wide!<\/p>\n Bacteria are single-cell microbes<\/strong> that can lead their life on their own<\/strong>, unlike viruses. That\u2019s why we say that bacteria are \u201cliving\u201d organisms<\/strong>.<\/p>\n This single cell within a bacterium contains DNA<\/strong>.<\/p>\n But the double-stranded bacterial DNA isn\u2019t placed in the nucleus like yours is. Bacteria don\u2019t even have a nucleus! Instead, their genetic information is packed within the nucleoid<\/strong> \u2014 an irregularly-shaped area without a membrane.<\/p>\n Since bacteria are autonomous, they don\u2019t have to hijack your cells to carry out life processes for them. They are capable of doing everything on their own<\/strong>.<\/p>\n Bacteria can transform DNA into RNA by themselves<\/strong>, and this is a huge difference between virus and bacteria. This process is essential for their survival because it helps them make proteins, which then allow them to adapt to specific conditions in their environment.<\/p>\n For example, certain bacterial proteins help them develop flagella<\/strong>, i.e. rigid tails that bacteria use to move around.<\/p>\n Some bacteria also contain pili<\/strong>, i.e. the hair-like structures on bacteria\u2019s surface that enable them to infect someone with ease by enabling contact between bacteria and the target. Moreover, pili allow for the transfer of the genetic material between bacterial cells.<\/p>\n With pili and flagella, bacteria look almost fluffy!\u200b<\/p><\/div>\n Now\u2019s a great time to talk about bacteria reproduction!<\/p>\n We just mentioned that bacteria use pili to transfer DNA from one bacterium to another. This process is called bacterial conjugation<\/strong> and it represents one of the ways bacteria reproduce.<\/p>\n Another way in which bacteria usually reproduce is called binary fission<\/strong>. This process is similar to mitosis in humans and other eukaryotes, i.e. organisms that have a nucleus and organelle within the cell membrane.<\/p>\n Binary fission is not the same as mitosis because bacteria and all prokaryotes don\u2019t have a nucleus.<\/p>\n During binary fission, a parent bacteria cell first replicates its DNA so there are two nucleoids<\/strong>. Then, the cytoplasm within the cell splits and the two identical daughter cells are free to lead individual lives.<\/p>\n On dead surfaces or in food, you can destroy bacteria with<\/strong> hot water<\/strong>!<\/p>\n Water of at least 140\u00b0F and more can kill bacteria in the water itself, but also annihilate bacteria in food, on surfaces and cooking utensils.<\/p>\n To clean pools, people use chlorine. You probably caught a whiff of it at some point if you went swimming in a pool. Chlorine has a strong smell, similar to bleach. Both are toxic and only adults should use them.<\/p>\n In case you catch a bacterial infection, there are many antibacterial medicines<\/strong> that destroy bacteria and prevent them from growing in numbers.<\/p>\n And to ensure wounds stay clean and bacteria-free, most people use iodine<\/strong> or hydrogen peroxide<\/strong>.<\/p>\nWhat Is A Virus?<\/h2>\n
What Does A Virus Consist Of?<\/h2>\n
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![\"Stock](\"https:\/\/2023.biowars.com\/blog\/wp-content\/uploads\/2022\/06\/virus-bacteria-rhinovirus.jpg\")
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How Are Viruses Destroyed?<\/h2>\n
How Do Viruses Reproduce?<\/h2>\n
What Are Bacteria?<\/h2>\n
![\"Stock](\"https:\/\/2023.biowars.com\/blog\/wp-content\/uploads\/2022\/06\/virus-bacteria-shapes-of-bacteria.jpg\")
What Do Bacteria Consist Of?<\/h2>\n
![\"Stock](\"https:\/\/2023.biowars.com\/blog\/wp-content\/uploads\/2022\/06\/virus-bacteria-flagella-pili.jpg\")
How Do Bacteria Reproduce?<\/h2>\n
How Are Bacteria Destroyed?<\/h2>\n