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Questions and Answers
Which of the following requires a helper virus to cause infection?
Which of the following requires a helper virus to cause infection?
- Prion
- Prion
- Viroid
- Virusoid (correct)
What is the primary type of molecule that makes up a prion?
What is the primary type of molecule that makes up a prion?
- Lipid
- Nucleic acid
- Carbohydrate
- Protein (correct)
Which of the following characteristics is unique to prions?
Which of the following characteristics is unique to prions?
- They contain DNA.
- They contain RNA.
- They require a helper virus.
- They lack nucleic acid. (correct)
What type of disease is associated with prions?
What type of disease is associated with prions?
Which disease is an example of a transmissible spongiform encephalopathy?
Which disease is an example of a transmissible spongiform encephalopathy?
What characteristic distinguishes viroids from viruses?
What characteristic distinguishes viroids from viruses?
What is another name for the Hepatitis D virus?
What is another name for the Hepatitis D virus?
For a patient to be infected with Hepatitis D, they must also be infected with:
For a patient to be infected with Hepatitis D, they must also be infected with:
What process are prions unaffected by?
What process are prions unaffected by?
Virusoids are generally associated with causing what kind of infection?
Virusoids are generally associated with causing what kind of infection?
Viroids primarily cause diseases in which type of organism?
Viroids primarily cause diseases in which type of organism?
Virusoids require what for infection?
Virusoids require what for infection?
What is a key characteristic of prions?
What is a key characteristic of prions?
What is the name of the human virus, which is closely related to plant viroids that requires Hepatitis B to cause infection?
What is the name of the human virus, which is closely related to plant viroids that requires Hepatitis B to cause infection?
What is a common characteristic of prions?
What is a common characteristic of prions?
What type of organism do virusoids typically infect?
What type of organism do virusoids typically infect?
The Hepatitis D virus is also known as what?
The Hepatitis D virus is also known as what?
What is the primary effect of a prion-related disease on the brain?
What is the primary effect of a prion-related disease on the brain?
Viroids can replicate independently and do not need helper viruses to infect what?
Viroids can replicate independently and do not need helper viruses to infect what?
Which of these diseases is caused by prions?
Which of these diseases is caused by prions?
Which of the following components do prions lack?
Which of the following components do prions lack?
What is a key characteristic of transmissible spongiform encephalopathies?
What is a key characteristic of transmissible spongiform encephalopathies?
What cell structure do viroids lack?
What cell structure do viroids lack?
Which of these diseases is not caused by a prion?
Which of these diseases is not caused by a prion?
Which of these biological entities are the smallest?
Which of these biological entities are the smallest?
What type of molecule primarily makes up a prion?
What type of molecule primarily makes up a prion?
Which of the following is NOT a characteristic of viroids?
Which of the following is NOT a characteristic of viroids?
What is the effect of autoclaving on prions?
What is the effect of autoclaving on prions?
What is an example of a transmissible spongiform encephalopathy?
What is an example of a transmissible spongiform encephalopathy?
To be infected with Hepatitis D virus, what other virus must also be present?
To be infected with Hepatitis D virus, what other virus must also be present?
Which of these characteristics do viroids and virusoids share?
Which of these characteristics do viroids and virusoids share?
What type of molecule is abnormally folded in prions?
What type of molecule is abnormally folded in prions?
What is required for a virusoid to cause infection?
What is required for a virusoid to cause infection?
Which of the following diseases is associated with abnormal folding of proteins?
Which of the following diseases is associated with abnormal folding of proteins?
What is the term for the group of diseases caused by prions?
What is the term for the group of diseases caused by prions?
Which of these features characterizes prions?
Which of these features characterizes prions?
What type of organism do viroids infect?
What type of organism do viroids infect?
What is the name of the infectious agent that requires a helper virus and is associated with plant infections?
What is the name of the infectious agent that requires a helper virus and is associated with plant infections?
What is a significant factor that makes prions dangerous?
What is a significant factor that makes prions dangerous?
What kind of infection is the Hepatitis D virus associated with?
What kind of infection is the Hepatitis D virus associated with?
What characteristic distinguishes prions from viruses and bacteria?
What characteristic distinguishes prions from viruses and bacteria?
What describes the effect of prion diseases on brain tissue?
What describes the effect of prion diseases on brain tissue?
Which of the following does not contain nucleic acid?
Which of the following does not contain nucleic acid?
What must a person already be infected with in order to contract Hepatitis D?
What must a person already be infected with in order to contract Hepatitis D?
Which of these is an example of a prion related disease?
Which of these is an example of a prion related disease?
What is the alternate name for the Hepatitis D virus?
What is the alternate name for the Hepatitis D virus?
What domain of life do virusoids infect?
What domain of life do virusoids infect?
Are viroids affected by a helper virus for replication?
Are viroids affected by a helper virus for replication?
What is a key element when talking about prions?
What is a key element when talking about prions?
What term refers to diseases linked to prions, like mad cow disease?
What term refers to diseases linked to prions, like mad cow disease?
Flashcards
Viroids
Viroids
Infectious RNA molecules that cause plant diseases and do not require a helper virus.
Virusoids
Virusoids
Infectious RNA molecules that require a helper virus to replicate, often associated with plant infections.
Prions
Prions
An infectious agent composed of misfolded protein. It lacks nucleic acid.
Transmissible Spongiform Encephalopathies
Transmissible Spongiform Encephalopathies
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What are viroids?
What are viroids?
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What are virusoids?
What are virusoids?
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What are prions?
What are prions?
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What are Transmissible Spongiform Encephalopathies (TSEs)?
What are Transmissible Spongiform Encephalopathies (TSEs)?
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What is the Delta agent?
What is the Delta agent?
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Study Notes
- Viroids do not need a helper virus
- Viroids cause plant diseases
- Virusoids require a helper virus
- Virusoids are generally associated with plant infection
- Hepatitis D virus, also called Delta agent, is a viroid that can infect humans
- Patient must be simultaneously infected with hepatitis B to contract Hepatitis D
- Prions are normal animal proteins that become infectious particles when abnormally folded
- Prions lack nucleic acid
- Prions are not affected by autoclaving
- Diseases caused by prions are called transmissible spongiform encephalopathies (e.g., mad cow disease, kuru)
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