10 Questions
What is the main reason that viruses are considered non-living?
They require a host to replicate
Which type of capsid structure consists of hollow tubes with protein walls?
Helical capsid
What kind of viruses use receptor-mediated endocytosis to enter host cells?
Enveloped viruses
Which virus is an example of a virophage that infects viruses?
Sputnik
What is the function of viral spike proteins in enveloped viruses?
Fusing membranes to enter host cells
What is the role of a replication factory in virus assembly?
To avoid immune defenses during assembly
Which type of virus is characterized by a regular polyhedron with 20 faces and 12 vertices?
Icosahedral capsid viruses
What distinguishes satellites from typical viruses?
Satellites lack genes for replication functions.
What is the primary function of neuraminidase enzymes found on enveloped viruses?
Breaking down protective structures in infected cells
What distinguishes enveloped viruses from non-enveloped ones in terms of entry into host cells?
Enveloped viruses fuse membranes while non-enveloped use receptor-mediated endocytosis.
Learn about specific stains like endospore, capsule, and flagella stains, as well as the key features of prokaryotes including their lack of nucleus, ribosomes, metabolism diversity, and growth phases like binary fission. Explore the use of phase contrast microscopy in differentiating cell structures.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
