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21 Cards in this Set

  • Front
  • Back
recombinant DNA
deliberately alter DNA switch genetic material from one organism to another.
Bacteria are easily genetically engineered because of their adaptability to _______
changes in their genetic makeup.
Introduction of microbes into the environment to restore stability or to clean up toxic pollutants.
Nearly 2,000 microbes that cause disease.
Malaria kills _____every year.
It is caused by a ______.
more than a million people.
-microorganism transmitted by mosquitoes.
Diseases caused by microorganisms.
-Influenza and pneumonia
-Septicemia (bloodstream infec.)
-Respiratory infections
- Diarrheal diseases
-measles, Hep. B, tetanus, parasitic disease
Recently identified diseases that causes mortality/morbidity are _______?
SARS, AIDS, hepatitis C, and viral encephalitis
roles of microorganisms in certain diseases:
-infertility caused by Chlamydia
-malignancies such as liver (hepatitis virus), cervical cancer (human papillomavirus)
Microorganisms are groups of organisms called:
Bacteria (E.Coli), fungi (Thamnidium), protozoa (Vorticella), algae (Volvox and Spirogyra), viruses (Herpes simplex), and parasitic worms/Helminth (Taenia solium).
Difference between eukaryotic cells and prockaryotic cells
Prokaryotes: smaller than eukaryotes. Lack special structures such as nucleus and organelles. ALl pro are microorganisms, but not all euk.
Organelles are _____
Small membrane bound cell structures that perform specific functions in eukarotic cells.
Bodies of most microorganisms consist of
single cell or just a few cells.
- not cells. Small particles that exist at a complex molecule.
-more simpler than cells.
-composes of small amount of hereditary material wrapped up in a protein covering.
-highly dependent on a host cell's machinery for their activities.
most microorganisms live a free existence in places such as soil/water and are harmless. Derive all food from nonliving environment. Some require interaction with other organisms..cAlled?
Parasites. They are harbored/nourished by other living organisms, called hosts. Action cause damage to its hose through infection/disease.
Most microorganisms are measured in micrometeres except for?
Helminths are measured in millimeteres, and viruses are emasured in nanometeres.
Range of electron microsocpe:
1nm - 200nm
Range of Light microscope
(bacteria, algae)
Germ theory of disease
human diseases could arise from infection. (Pasteur)
Levels of Classification
kingdom,phylum,class, order, family, genus
lack tissue differentiation. (simple organisms).
5 subdivisions of kingdom-
monera (prokaryote), fungi, protists, plants, and animals.