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

Question 1 of 8

1

Fill the blank space to complete the text.

The is the largest living organism in the world.

Explanation

Question 2 of 8

1

Fill the blank spaces to complete the text.

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

Explanation

Question 3 of 8

1

Virusses can have:

Select one or more of the following:

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

Explanation

Question 4 of 8

1

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)

Drag an answer into the correct orange point.

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

Explanation

Question 5 of 8

1

Click on each orange point and write the correct answer.

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.

Explanation

Question 6 of 8

1

Select from the dropdown lists to complete the text.

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.

Explanation

Question 7 of 8

1

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

Drag an answer into the correct orange point.

Attachement

Entry of phage DNA and degr. of host DNA

Synthesis of viral genomes and proteins

Self-assembly

release

Explanation

Question 8 of 8

1

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

Drag an answer into the correct orange point.

lytic

lysogenic

	Created by fleur pietersz almost 4 years ago

Quiz on Evo 1. The Diversity Of Life, Chapter 26: Introduction to virusses , created by fleur pietersz on 18/07/2020.

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

Question 1 of 8

Fill the blank space to complete the text.

The is the largest living organism in the world.

Explanation

Question 2 of 8

Fill the blank spaces to complete the text.

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

Explanation

Question 3 of 8

Virusses can have:

Select one or more of the following:

Explanation

Question 4 of 8

Drag an answer into the correct orange point.

Explanation

Question 5 of 8

Click on each orange point and write the correct answer.

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.

Explanation

Question 6 of 8

Select from the dropdown lists to complete the text.

Explanation

Question 7 of 8

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

Drag an answer into the correct orange point.

Explanation

Question 8 of 8

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

Drag an answer into the correct orange point.

Explanation

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