Unit 9 Review

Which body system is related to your breathing and your lungs?

• Respiratory system

• Nervous system

• Skeletal system

• Immune system

Viruses have protein spikes that are used to

• Defend the virus

• Destroy the host cell from the outside

• Replicate the host cell

• Attach to receptors on the host cell

The basic structure of a virus is

• A cell wall with a cell membrane

• A protein coat called a capsid protecting genetic material

• Capsid made out of lipids

• A nucleus surrounding the nucleic acid

Which body system deals with movement of your body. For example: your biceps and diaphragm?

• Integumentary system

• Circulatory system

• Muscular system

• Endocrine system

Remember, a bunch of cells doing the same function (working together) is what level of organization?

• Organ system

• Organelle

• Tissue

• Organ

Microorganisms, such as bacteria...

• Only help maintain an organisms health, bacteria are always helpful organisms

• Can disrupt an organism's health but can also help an organism by helping digest nutrients

• Do not benefit organisms at all and can only make them sick

• Infect host cells in an organism like a virus

Scientists discovered a new virus which takes months to years for symptoms to develop. The reproduction cycle of this virus is most likely

• Symphonic

• Lytic

• Respiration

• Lysogenic

Which body system is related to an organisms hair and skin?

• Circulatory system

• Reproductive system

• Immune system

• Integumentary system

After a virus replicates and the cell lyses (bursts)...

• All the viruses die

• The new viruses infect other host cells

• The capsid on the virus dissolves

• The viral nucleic acid gets replicated