Question

In: Biology

what are the components of viruses and what is their function?

what are the components of viruses and what is their function?

Solutions

Expert Solution

Structure of virus :-
All viruses are made up of two basic components -
(a) Nucleic acid and (b) Protein.

• Nucleic acid present in viruses may be DNA or RNA. These nucleic acids may be single stranded or double stranded.

  • Nucleic acid of each virus encodes the genetic information for the synthesis of all proteins.

• On the basis of nucleic acid, there are two types of viruses - RNA virus and DNA virus.

RNA viruses :-
Virus with RNA nucleic acid.
• Virus with double stranded RNA - Reovirus
• Virus with single stranded RNA - Polio virus, influenza virus, HIV etc.
• Virus with segmented RNA - Influenza A virus.

DNA viruses :-
Virus with DNA nucleic acid.
• Virus with double stranded DNA - Adenovirus, bacteriophage.
• Virus with single stranded DNA - Parvovirus.

Protein - In viruses, there are two types of proteins - Structural and Non- structural.
• Structural proteins include capsid, membrane and envelope.
• Capsid is surrounding protein coat of virus.
• Some viruses have additional surrounding lipid bilayer called envelope.
• Non structural proteins are the proteins which are formed by viruses in infected cells.


Related Solutions

5. What are the major components of viruses? Describe the replication cycle of a lytic bacteriophage....
5. What are the major components of viruses? Describe the replication cycle of a lytic bacteriophage.
1. What is meant by malware/viruses? What is their history? Are malware and/or viruses recent developments...
1. What is meant by malware/viruses? What is their history? Are malware and/or viruses recent developments in computer technology or have they been around for a while? What piece of malware/virus are choosing to write about and why?  
Explain and walk through the components of the Modigliani-Miller model. What is the function of the...
Explain and walk through the components of the Modigliani-Miller model. What is the function of the model? What is meant by a perfect market, and how does this model relate? Are there any limitations to the model?
why are viruses hard to treat? why are viruses not alive? what happens when a virus...
why are viruses hard to treat? why are viruses not alive? what happens when a virus particle attacks a cell? what happens to the host cell when a virus replicates inside it? what 2 components do all viruses contain? what are the steps in the virus life cycle? what happens during the lysogenic phase? what happens in the lytic phase? what are some diseases caused by a virus? why are most viruses known? write down the 6 steps in a...
State what the function(s) of the following nuclear components and why each is important to the...
State what the function(s) of the following nuclear components and why each is important to the cell. (Provide details, don’t just say “ribosomes are the location of translation.” What is translation) nuclear envelope, lamins and nuclear lamina, ER, ribosomes, nuclear pore, and nucleolus. Remember, this is a study tool, the more detailed you are here, the better understanding you have of the info.
Summarize the unique properties of viruses and explain which of these characteristics allows them to function...
Summarize the unique properties of viruses and explain which of these characteristics allows them to function as a parasite
Identify and provide a function of the structural components of a bone.
Identify and provide a function of the structural components of a bone.
for viruses, what is assembly, what is packaging and what is encapsidation? are they the same...
for viruses, what is assembly, what is packaging and what is encapsidation? are they the same thing?
1. What is the function of skeletal muscle? 2. Describe the major components of skeletal muscle...
1. What is the function of skeletal muscle? 2. Describe the major components of skeletal muscle cels: Myofibrils Sarcomeres Motor unit Neuromuscular junction 3. How does skeletal muscle produce movement? 4. How do actin and myosin interact in a sarcomere to bring about muscle contraction? What roles do ATP and calcium play? 5. What is the functiion of the sarcoplasmic reticulum in muscle cell contraction? 6. Explain why calcium ions and ACh are vitals for muscle contraction. 7. What is...
regarding the kidney, discuss the structural components of the nephron and their function(s) discuss th components...
regarding the kidney, discuss the structural components of the nephron and their function(s) discuss th components of the digestive system and their functional sigificance. address microanatomy structures(specialized cells and their function)
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT