Evo 1. The Diversity Of Life, Chapter 26: Introduction to virusses

Pregunta 1 de 8

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The is the largest living organism in the world.

Explicación

Pregunta 2 de 8

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Virusses were accidently discovered by in an attempt to find the bacteria or toxins causing the disease in plants (). Later, coined the term virus ().

Explicación

Pregunta 3 de 8

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Virusses can have:

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DNA
RNA
one stranded genome
double sided genome
ATP synthesis mechanisms
protein translation mechanisms
lineair genome
circulair genome

Explicación

Pregunta 4 de 8

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Viruses are made up of nucleic acid (DNA or RNA) enclosed in a protein coat (the capsid) and sometimes wrapped in a membranous envelope. The individual protein subuntis making up the capsid are called capsomeres. Although diverse in size and shape, viruses have many common structural features. (all micrographs are colorized TEMs)

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one stranded RNA

Capsomere of the capsid

Membranous envelope

double stranded DNA

capsomere of the capsid

protein spike

viral polymerase

glycoprotein spikes

RNA protein complex

Protein

RNA

Head

DNA

Tail sheath

Tail fiber

Tabacco mosaic disease

adenoviruses

influenza viruses

bacteriophage T4

Explicación

Pregunta 5 de 8

1

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A virus is an intracellular parasite that uses the equipment and small molecules of its host cell to replicate. In this simplest of viral cycles, the parasite is a DNA virus wth a capsid consisting of a single type of protein. Describe what happens to the virus and the host cell in 1 to 4.

Explicación

Pregunta 6 de 8

1

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After a (Bacterio)phage leaves a host cel in the last stage of infection, they can either destroy the host cell or leave it intact.

The infection cycle of a phage that bursts the host cell is called a ( lytic cycle, lysogene cycle ). These cells ( cannot, can ) be reused for DNA replication and ( cannot, can ) reproduce normally. Phages that ONLY undergo a ( lytic, lysogene ) cycle are called ( virulent, temporate ) phages.

The infection cycle of a phage that leaves the host cell intact is called a ( lysogene cycle, lytic cycle ). Phages that undergo a ( lysogene, lytic ) cycle are called ( termporate, virulent ) phages. The host cell DNA and the phage DNA intergratie and form a ( prophage, viral DNA, new phage ). These cells ( can, cannot ) reproduce normally. Some ( prophages, viral DNAs, new phages ) do produce harmfull substances.

Both the phage genome and enviromental factors can determine the cycle.

Explicación

Pregunta 7 de 8

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The lytic cycle of phage T4, a virulent phage. Drag and drop the correct order of the lytic cycle.

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Attachement

Entry of phage DNA and degr. of host DNA

Synthesis of viral genomes and proteins

Self-assembly

release

Explicación

Pregunta 8 de 8

1

The lytic and lysogenic cycles of phage lambda, a temporate phage. Drag and drop the correct cycle.

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lytic

lysogenic

	Creado por fleur pietersz hace casi 4 años

Test sobre Evo 1. The Diversity Of Life, Chapter 26: Introduction to virusses , creado por fleur pietersz el 18/07/2020.

Evo 1. The Diversity Of Life, Chapter 26: Introduction to virusses

Pregunta 1 de 8

Rellena el espacio en blanco para completar el texto.

The is the largest living organism in the world.

Explicación

Pregunta 2 de 8

Rellena los espacios en blanco para completar el texto.

Virusses were accidently discovered by in an attempt to find the bacteria or toxins causing the disease in plants (). Later, coined the term virus ().

Explicación

Pregunta 3 de 8

Virusses can have:

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 4 de 8

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Explicación

Pregunta 5 de 8

Haz click en el punto naranja y escribe la respuesta

A virus is an intracellular parasite that uses the equipment and small molecules of its host cell to replicate. In this simplest of viral cycles, the parasite is a DNA virus wth a capsid consisting of a single type of protein. Describe what happens to the virus and the host cell in 1 to 4.

Explicación

Pregunta 6 de 8

Selecciona la opción correcta de los menús desplegables para completar el texto.

Explicación

Pregunta 7 de 8

The lytic cycle of phage T4, a virulent phage. Drag and drop the correct order of the lytic cycle.

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Explicación

Pregunta 8 de 8

The lytic and lysogenic cycles of phage *lambda*, a temporate phage. Drag and drop the correct cycle.

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Explicación

The lytic and lysogenic cycles of phage lambda, a temporate phage. Drag and drop the correct cycle.