Viruses

What do viruses need to reproduce?

• they need genetic material
• They need a host cell
• They need  bacteria
• They need insulin

A virus can be classified by its type of

• mitochondria
• chromosomes
• nucleic acid
• carbohydrates

A(n) _____ is a virus that enters a bacterial cell.

• endospore
• decomposer
• plasmid
• bacteriophage

When a virus invades a living cell, its _______
takes over the cell's functions.

• outer coat
• genetic material
• core
• cytoplasm

Tags

NGSS.MS-LS1-2

What part of a virus is the protein capsule that houses the genetic material (DNA/RNA)?

• tail
• nucleus
• capsid
• glycoprotein

Which viral life cycle kills its host cell by lysing?

• lytic
• mitosis
• lysogenic
• S phase

Which viral life cycle allows viral genetic material to lay dormant while the host cell reproduces?

• lytic
• mitosis
• lysogenic
• S phase

Which of the following supports the argument that viruses are nonliving?

• Their DNA does not encode proteins

• They have RNA rather than DNA

• They are not cellular

• They do not evolve

Which of these is a plant virus?

• tobacco mosaic virus
• bacteriophage
• influenza
• polio

Most new viral diseases arise as a result of

• genetic engineering mistkaes

• humans coming in contact with isolated habitats

• mutation of existing viruses

• the overuse of antibiotics

Tags

NGSS.MS-LS3-1

NGSS.MS-LS4-4