Capsid Guides d'étude, Notes de cours & Résumés

Are Viruses Living or Nonliving? - They are only considered living when they are inside of a host cell, using their resources and energy. Outside of a host they are considered intert. When are Viruses considered to be "alive"? - When they are inside of a host cell. When inside, their nucleic acid (ONLY RNA OR DNA) become active. *Virus replicates Obligatory Intracellular Parasites - Require livinghost cell in order to multiply - Such as Viruses. Defining a Virus - ...

28) Viruses are not the only obligatory intracellular parasites. Describe how the replication of viruses is diferent than cellular organisms that replicate inside of cells, like chlamydiae and rickettsiae. Ans :: Unicellular parasitic cells that need to replicate inside of other cells do not replicate in the same way that viruses do. First of all, unicellular parasites have their own ribosomes to translate their mRNAs and do not use the host cell ribosomes, like viruses do. In addition they ...

Bio 114 Exam 4 (UA) Questions and Answers Already Passed What is referred to as the "switch" in a DNA segment? The "switch" is known as the operator, a DNA segment typically located within the promoter region. What role does a repressor play in gene regulation? A repressor is a protein that attaches to an operator and obstructs RNA polymerase from attaching to the promoter. What is a corepressor? A corepressor is a molecule that works in conjunction with a repressor protein ...

BIO 390 Exam 2 Questions With 100% Correct Answers Virus - answerLatin for poison (Pasteur) Not living Not cellular Obligate intracellular parasite - answerPerform no metabolism Can not freely reproduce No protein synthesis Carry no or few enzymes Naked virus (non-enveloped virus) anatomy: - answerGenetic material (DNA or RNA) Capsid-protein coating (composed of capsomere proteins) Enveloped virus anatomy: - answerGenetic material (DNA or RNA) Capsid Envelope - phospholipid bilayer ...

Microbiology Exam 2 xam Questions And Answers (Verified And Updated) Are Viruses Living or Nonliving? - answerThey are only considered living when they are inside of a host cell, using their resources and energy. Outside of a host they are considered intert. When are Viruses considered to be "alive"? - answerWhen they are inside of a host cell. When inside, their nucleic acid (ONLY RNA OR DNA) become active. *Virus replicates Obligatory Intracellular Parasites - answerRequire livinghos...

Which of the following is a property of viruses that defines them as unique organism: a) Do not contain or code for proteins synthesis or energy-generating mechanisms b) Have a wall composed of LPS c) have an icosohedral capsid Correct Answer-a) Do not contain or code for proteins synthesis or energy-generating mechanisms T/F: Enveloped viruses are normally more resistant to dry conditions than non-enveloped viruses. Correct Answer-False (Non enveloped are more resistant)

Rash, Resp, Enteric Viruses Practice Review Study Questions 2024. Picornavirus structure - correct answer ... picornavirus general feature - correct answer Small naked RNA viruses with polyhedral capsid structure real small so rna picornovirus genome - correct answer Genome is ~7.4 kb ssRNA of positive polarity that encodes a self-processing polyprotein. 1. Genome is linked at 5' end to VPg. 2. 3' end is polyadenylated pic- 5pig, 3 adenylated piconorvirus caps...

Biology 104 Final Exam Questions and Answers Already Passed What is the primary function of red blood cells in humans? To transport oxygen throughout the body. What is the process by which plants convert nitrogen gas into a form usable by living organisms? Nitrogen fixation. What is the molecule that acts as a signaling messenger between nerve cells? Neurotransmitter. What is the term for the protective outer covering of a virus? Capsid. What is the role of insulin in t...

General Characteristic of a Virus CORRECT ANSWER -Can have DNA or RNA, but not both -Have no ribosomes -No ATP-generating mechanism -Are infectious Define: Obligate Intracellular Parasite CORRECT ANSWER Needs a host cell in order to replicate What is a Capsid? CORRECT ANSWER A protein coat that encloses and protects the viruses nucleic acid. -All viruses have capsids What is a Capsomer? CORRECT ANSWER Identical protein sub-units that makeup the capsid. May be made up of one or seve...

Microbiology Exam 2 xam Questions And Answers (Verified And Updated) Are Viruses Living or Nonliving? - answerThey are only considered living when they are inside of a host cell, using their resources and energy. Outside of a host they are considered intert. When are Viruses considered to be "alive"? - answerWhen they are inside of a host cell. When inside, their nucleic acid (ONLY RNA OR DNA) become active. *Virus replicates Obligatory Intracellular Parasites - answerRequire livinghos...