Back to marketplace

Lecture 12

No description yet. This curated deck is ready for daily study.

Total cards: 24•Content version: v3•Public deck•Updated: 8/1/2026

Card preview (24)

#1
Front (Question)

What is a virus?

Back (Answer)

Genetic element that cannot replicate outside a living cell. Have both intracellular, and extracellular form

#2
Front (Question)

Virion

Back (Answer)

Infectious, extracellular virus particle

#3
Front (Question)

Virion DNA or RNA genome with a protein coat can have other ____ layers

Back (Answer)

outer

#4
Front (Question)

Virion is metabolically ____ norespiration or ____

Back (Answer)

Inert/biosynthesis

#5
Front (Question)

Virion may contain ____/____ important for infection

Back (Answer)

proteins/enzymes

#6
Front (Question)

Most viruses are smaller than prokaryotic cells

Back (Answer)

20-300 nm

#7
Front (Question)

Usually have only a ____ range of hosts

Back (Answer)

narrow

#8
Front (Question)

Virusis are the most abundant biological particles on earth. T or F

Back (Answer)

T. Typically found 10x higher concentrations thatn prokaryotic cells

#9
Front (Question)

Viruses ____ harm the host

Back (Answer)

dont always/ some even carry genes that benefit the host

#10
Front (Question)

The protein shell that surrounds the genome of a virus particle

Back (Answer)

Capsid

#11
Front (Question)

Capsids can be ____ or icosahedral

Back (Answer)

helical

#12
Front (Question)

Linear or cicular DNA or RNA single stranded or double stranded

Back (Answer)

Genome

#13
Front (Question)

Lipid bilayer surrounding the nuceocapsid

Back (Answer)

Envelope

#14
Front (Question)

Helical symmetry

Back (Answer)

Rod-shaped viruses

#15
Front (Question)

Length of virus determined by length of

Back (Answer)

Nucleic acid

#16
Front (Question)

Width of a virus determined by

Back (Answer)

sizing of packaging of protein subunits

#17
Front (Question)

Icosahedral symmetry

Back (Answer)

Spherical viruses. Most efficient arrangment of subunits in a cled shell. Quantized 60,180,240,360,420 subunits

#18
Front (Question)

Virions composed of several parts, each with seperate shapes and symmetries

Back (Answer)

Complex viruses ex) icosahedral heads and helical tails

#19
Front (Question)

Cellulase, lysozyme, holin

Back (Answer)

For penetrating host cell surface

#20
Front (Question)

Nucleic acid polymerases

Back (Answer)

Replicating the viral genome

#21
Front (Question)

Neuraminadases

Back (Answer)

enzymes that cleaves glycosidic bonds

#22
Front (Question)

Integrase

Back (Answer)

integration of the virus genome into host cell genome

#23
Front (Question)

Viruses that infect bacteria are usaully called

Back (Answer)

bacteriophages

#24
Front (Question)

Most bacterial viruses are

Back (Answer)

Naked (not enveloped)