Enzymes are absent in viruses. Unlike fungi, slime molds, and bacteria, which are living organisms with cellular structures and metabolic processes that involve enzymes, viruses are much simpler entities. Viruses consist mainly of genetic material (either DNA or RNA) enclosed in a protein coat and lRead more
Enzymes are absent in viruses. Unlike fungi, slime molds, and bacteria, which are living organisms with cellular structures and metabolic processes that involve enzymes, viruses are much simpler entities. Viruses consist mainly of genetic material (either DNA or RNA) enclosed in a protein coat and lack the cellular machinery necessary for metabolism or enzyme production. Instead, viruses rely on the host cell’s machinery to replicate and produce the proteins they need for their life cycle. This absence of enzymes and cellular metabolism is one of the reasons viruses are considered non-living and exist on the boundary between living and non-living matter.
HIV is a disease caused by the human immunodeficiency virus, which leads to the progression of acquired immunodeficiency syndrome (AIDS). The virus targets the immune system, specifically the CD4 cells, weakening the body's ability to fight off infections and diseases. HIV is transmitted through theRead more
HIV is a disease caused by the human immunodeficiency virus, which leads to the progression of acquired immunodeficiency syndrome (AIDS). The virus targets the immune system, specifically the CD4 cells, weakening the body’s ability to fight off infections and diseases. HIV is transmitted through the exchange of bodily fluids such as blood, semen, vaginal fluids, and breast milk. It can also be passed from mother to child during childbirth or breastfeeding. Early symptoms of HIV may include flu-like symptoms, but the disease can progress without noticeable symptoms for years. If left untreated, HIV can advance to AIDS, which is characterized by a severely weakened immune system and an increased risk of opportunistic infections and certain cancers. Treatment for HIV involves antiretroviral therapy, which can control the virus and prevent the progression to AIDS, allowing individuals to live longer, healthier lives.
AIDS virus, also known as HIV (Human Immunodeficiency Virus), is a single-stranded RNA virus. This virus belongs to the retrovirus family and has a genome composed of single-stranded RNA. When HIV enters a host cell, it uses the enzyme reverse transcriptase to convert its RNA genome into DNA. This DRead more
AIDS virus, also known as HIV (Human Immunodeficiency Virus), is a single-stranded RNA virus. This virus belongs to the retrovirus family and has a genome composed of single-stranded RNA. When HIV enters a host cell, it uses the enzyme reverse transcriptase to convert its RNA genome into DNA. This DNA then integrates into the host cell’s genome, allowing the virus to replicate and spread within the body. HIV attacks the immune system, specifically targeting CD4 cells (T cells), which weakens the immune response and makes the body susceptible to opportunistic infections and certain cancers. As the virus progresses and the immune system becomes severely compromised, the condition known as Acquired Immunodeficiency Syndrome (AIDS) can develop. Effective antiretroviral therapy can control the virus and improve the quality of life for those living with HIV/AIDS.
AIDS is spread by physical contact [D] through the exchange of bodily fluids. The transmission routes include unprotected sexual intercourse, sharing needles or syringes, and from mother to child during childbirth or breastfeeding. Additionally, blood transfusions with contaminated blood can spreadRead more
AIDS is spread by physical contact [D] through the exchange of bodily fluids. The transmission routes include unprotected sexual intercourse, sharing needles or syringes, and from mother to child during childbirth or breastfeeding. Additionally, blood transfusions with contaminated blood can spread HIV, which causes AIDS. Casual contact, such as shaking hands, hugging, or sharing food, does not transmit the virus. AIDS is not spread through respiratory contact like coughing or sneezing, nor is it transmitted by insects such as mosquitoes. Preventing the spread of HIV involves practicing safe sex, using clean needles, and ensuring safe blood transfusions. Public health initiatives aim to educate individuals on safe practices and provide testing and treatment to reduce the risk of transmission.
: A virus consists of nucleic acid and protein. The nucleic acid, which can be either DNA or RNA, contains the virus's genetic information. Surrounding the nucleic acid is a protein coat called a capsid, which protects the genetic material and aids in the virus's attachment to host cells. In some viRead more
: A virus consists of nucleic acid and protein. The nucleic acid, which can be either DNA or RNA, contains the virus’s genetic information. Surrounding the nucleic acid is a protein coat called a capsid, which protects the genetic material and aids in the virus’s attachment to host cells. In some viruses, there may also be a lipid envelope derived from the host cell’s membrane that surrounds the capsid, providing an additional layer of protection. Carbohydrates are not a primary component of viruses, but they may be present as part of the lipid envelope in some cases. Therefore, the primary components of a virus are nucleic acid and protein.
Enzymes are absent in
Enzymes are absent in viruses. Unlike fungi, slime molds, and bacteria, which are living organisms with cellular structures and metabolic processes that involve enzymes, viruses are much simpler entities. Viruses consist mainly of genetic material (either DNA or RNA) enclosed in a protein coat and lRead more
Enzymes are absent in viruses. Unlike fungi, slime molds, and bacteria, which are living organisms with cellular structures and metabolic processes that involve enzymes, viruses are much simpler entities. Viruses consist mainly of genetic material (either DNA or RNA) enclosed in a protein coat and lack the cellular machinery necessary for metabolism or enzyme production. Instead, viruses rely on the host cell’s machinery to replicate and produce the proteins they need for their life cycle. This absence of enzymes and cellular metabolism is one of the reasons viruses are considered non-living and exist on the boundary between living and non-living matter.
See lessH.I.V. is a disease caused by
HIV is a disease caused by the human immunodeficiency virus, which leads to the progression of acquired immunodeficiency syndrome (AIDS). The virus targets the immune system, specifically the CD4 cells, weakening the body's ability to fight off infections and diseases. HIV is transmitted through theRead more
HIV is a disease caused by the human immunodeficiency virus, which leads to the progression of acquired immunodeficiency syndrome (AIDS). The virus targets the immune system, specifically the CD4 cells, weakening the body’s ability to fight off infections and diseases. HIV is transmitted through the exchange of bodily fluids such as blood, semen, vaginal fluids, and breast milk. It can also be passed from mother to child during childbirth or breastfeeding. Early symptoms of HIV may include flu-like symptoms, but the disease can progress without noticeable symptoms for years. If left untreated, HIV can advance to AIDS, which is characterized by a severely weakened immune system and an increased risk of opportunistic infections and certain cancers. Treatment for HIV involves antiretroviral therapy, which can control the virus and prevent the progression to AIDS, allowing individuals to live longer, healthier lives.
See lessWhat is AIDS virus?
AIDS virus, also known as HIV (Human Immunodeficiency Virus), is a single-stranded RNA virus. This virus belongs to the retrovirus family and has a genome composed of single-stranded RNA. When HIV enters a host cell, it uses the enzyme reverse transcriptase to convert its RNA genome into DNA. This DRead more
AIDS virus, also known as HIV (Human Immunodeficiency Virus), is a single-stranded RNA virus. This virus belongs to the retrovirus family and has a genome composed of single-stranded RNA. When HIV enters a host cell, it uses the enzyme reverse transcriptase to convert its RNA genome into DNA. This DNA then integrates into the host cell’s genome, allowing the virus to replicate and spread within the body. HIV attacks the immune system, specifically targeting CD4 cells (T cells), which weakens the immune response and makes the body susceptible to opportunistic infections and certain cancers. As the virus progresses and the immune system becomes severely compromised, the condition known as Acquired Immunodeficiency Syndrome (AIDS) can develop. Effective antiretroviral therapy can control the virus and improve the quality of life for those living with HIV/AIDS.
See lessAIDS Spreads by
AIDS is spread by physical contact [D] through the exchange of bodily fluids. The transmission routes include unprotected sexual intercourse, sharing needles or syringes, and from mother to child during childbirth or breastfeeding. Additionally, blood transfusions with contaminated blood can spreadRead more
AIDS is spread by physical contact [D] through the exchange of bodily fluids. The transmission routes include unprotected sexual intercourse, sharing needles or syringes, and from mother to child during childbirth or breastfeeding. Additionally, blood transfusions with contaminated blood can spread HIV, which causes AIDS. Casual contact, such as shaking hands, hugging, or sharing food, does not transmit the virus. AIDS is not spread through respiratory contact like coughing or sneezing, nor is it transmitted by insects such as mosquitoes. Preventing the spread of HIV involves practicing safe sex, using clean needles, and ensuring safe blood transfusions. Public health initiatives aim to educate individuals on safe practices and provide testing and treatment to reduce the risk of transmission.
See lessWhat is there in a virus?
: A virus consists of nucleic acid and protein. The nucleic acid, which can be either DNA or RNA, contains the virus's genetic information. Surrounding the nucleic acid is a protein coat called a capsid, which protects the genetic material and aids in the virus's attachment to host cells. In some viRead more
: A virus consists of nucleic acid and protein. The nucleic acid, which can be either DNA or RNA, contains the virus’s genetic information. Surrounding the nucleic acid is a protein coat called a capsid, which protects the genetic material and aids in the virus’s attachment to host cells. In some viruses, there may also be a lipid envelope derived from the host cell’s membrane that surrounds the capsid, providing an additional layer of protection. Carbohydrates are not a primary component of viruses, but they may be present as part of the lipid envelope in some cases. Therefore, the primary components of a virus are nucleic acid and protein.
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