6) What factor determines the relative virulence of a virus? The use of host cel

Question

6) What factor determines the relative virulence of a virus? The use of host cell energy The use of host cell nucleotides The ability to replicate in nonhost cells The cell type in the body it infects The type of lipid capsid it forms 7) What enables a virus to move effectively within its host cell? Cytoskeleton Capsule 8) Some nations use living antibiotics to treat select infectious diseases. These living antibiotics are Phage 9) Which pathogen destroys 50% of the prokaryotes on earth every two days? Phage Biofilms Bacteria Fungi 10) What is the most common ecological function of prokaryotes? Predation Photosynthesis Chemosynthesis Nitrogen Fixation None of the above

Explanation / Answer

[I am answering all the parts except the 1st one. I hope it helps. Thanks]

2. The viruses invade the host cell. Upon invading, they use cytoskeleton like actin and microtubule to move inside the host cells. So, correct answer is cytoskeleton.

3. Live antibiotics use the bacteria to kill the bacteria. The live form of bacteria is injected in the body of the patient to eradicate the growth of similar bacteria. So, correct answer is bacteria.

4. Phage is also called bacteriophage. They are viruses that infect the bacteria. Bacteria is the simplest prokaryote which got infected by the phage that ultimately causes lysis of the bacteria. So, the correct answer is phage.

5. Prokaryotes play a major role in the nitrogen cycle by fixing atomspheric nitrogen into ammonia that plants can use and by converting ammonia into other forms of nitrogen sources. So, the correct answer is nitrogen fixation.

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