Term
| Characteristics of Viruses |
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Definition
+Tiny infectios agents
-have a nucleic core
-have a protein coat (capsid)
+Viruses are not cells (no nucleus, organelles or cytoplasm)
+Viruses are not considered to be living (do not metabolize, or reproduce on their own)
+ No Kingdom
+ obligate intracelluar parasites
+ Reproduces by inserting its DNA or RNA into host cell (parasite)
+Lytic Infection
+Lysogenic Infection |
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Term
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Definition
| Viral DNA is inserted into the host cell and takes over the cell. |
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Term
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Definition
Viral DNA integrates itself with host DNA.
-The virus "hides" in host cell for indefinite period of time.
-Virus reverts to Lytic lifestyle. |
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Term
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Definition
| Includes AIDS virus, where RNA virus containing genes can copy its RNA into a DNA form. |
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Term
| Examples of viral diseases |
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Definition
| Measles, Mumps, Small Pox, Chicken Pox, Rabies, Warts, Cold Sores, Herpes I & II |
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Term
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Definition
+Include Bacteria
+Prokaryotes
+Single Celled
+Some Prokaryotes form endospores that enable them to survive harsh conditions.
+Ubiquitous-found in many different places.
+Saprophytes, Heterotrophs, Autotrophic
+Cyanobacteria
+two types of bacteria based on cell wall structure.
-1. gram(+),blue or purple when stained
-2. gram(-), red when stained
+Classified by cell morphology
-Locci, Bacilli, Spirilla
+Play important role in ecosystems
-break down organic wastes & dead organisms
-cycle chemical elements (oxygen, nitrogen) between organisms & the environment
-are used in production of food |
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