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Excellent travail !

Voici votre note 4/4 pts (qui comptera dans la note "globale" du projet)

Answers to the question :

1) Flu virus:

1-Hemagglutinin 2-Ribonucleoprotéine 3-Viral envelope 4-Transcriptase replicase complex 5-Neuraminidase

VIH:

1-Membrane proteins 2-viral envelope 3-External capsid 4-Internal capsid 5-Genome: RNA 6-Reverse transcriptase

Bactériophage:

1-Icosahedral head 2-tail 3-Nucleic acid 4-Contractile sheath 5-Caudal fibers

Ebola virus:

1-Nucleoproteins 2-Glycoproteins 3-Matrix 4-viral envelope

2)You have to use an electron microscope because viruses are an a nanometer scale.

3) "HIV": Human immunodeficiency virus. HIV's target cells are mostly brain microglial cells, it causes AIDS.

4) This term means bacteria viruses. Infected cells are bactéria.

5)The viral cycle has 7 stages: 1-absorption, 2-penetration, 3-decapsidation, 4-transcription and translation, 5-replication of the viral genome, 6-assembly of the virion, 7-release of newly formed viral particles. A virus is a compulsory parasite because it can not survive without a host.

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