Term
|
Definition
| A tiny, nonliving particle that invades and then multiplies inside a living cell. Viruses are NOT cells. They do not have characteristics of organisms |
|
|
Term
|
Definition
| A _____ is a living thing that provides a source of energy for a virus or an organism. |
|
|
Term
|
Definition
| organisms that live on or in a host and cause it harm. Almost all viruses destroy their host cells. |
|
|
Term
|
Definition
| virus that infects bacteria "bacteria eater" |
|
|
Term
| How are viruses like organisms? |
|
Definition
| The only way in which viruses are like organisms is that they can multiply. They can only multiply inside of living cells. |
|
|
Term
| What is the structure of a virus? |
|
Definition
All viruses have two basic parts:
- A protein coat that protects the virus. It acts as a key to help "lock" onto a host cell while invading
- An inner core made of genetic material
They come in different shapes |
|
|
Term
| What are the two ways virus multiply? |
|
Definition
|
|
Term
| Describe the steps in active virus multiplication |
|
Definition
- Attach to a cell
- invade/penetrate the cell
- virus takes over cell functions
- instructs cell to produce new virus genetic material & protien (like a copy machine)
|
|
|
Term
| Describe the steps in hidden virus multiplication |
|
Definition
- Attach to cell
- invade/penetrate cell
- doesn't take over, but genetic material is copied as infected cell continues to divide
- suddenly activated, it multiplies within infected cells
|
|
|
Term
| How can you treat a viral disease? |
|
Definition
- No cures for viral diseases
- cold remedies can prolong illness
- best treatment is bed rest
- drinking lots of fluids
- eating well-balanced meals
|
|
|
Term
|
Definition
- contact with contaminated object
- bite of an infected animal
- tiny droplets inhaled
- contact with body fluids
|
|
|
Term
| How to prevent viral disease? |
|
Definition
- vaccines
- healthy diet
- exercize
- plenty of rest
- drinking lots of water/fluids
- washing hands frequently
|
|
|
