Introduction Flashcards
Deals with the study of microorganisms.
Usually less than 1mm in diameter
Usually require magnification with the help of microscope to be seen clearly
Microbiology
7 Characteristics of Virus
- are not living organisms
- Are not made out of cells
- Can’t keep themselves in a stable state
- Don’t grow and cant make own energy
- Even though they definitely replicate and adapt to their environment
- More like androids than real living organisms
- Can only replicate within a host
Single-celled organism that exist in their millions
Both inside and outside organism
Bacteria
Unicellular and lack nuclei
Much smaller than eukaryotes
Found everywhere there is sufficient moisture; some found in extreme environments
Reproduce asexually
Bacteria and Archaea
ell walls contain peptidoglycan; some lack cell walls; most do not cause disease and some are beneficial
Bacteria
cell walls composed of polymers other than peptidoglycan
Archaea
8
Characteristics of fungi
- Single celled or very complex multicellular
- Macroscopic
- Found in just about any habitat
- Most live in land, mainly soul or on plant rather than in sea or freshwater
- Lalo na sa moist ecosystem
- Eukaryotic (have membrane-bound nucleus)
- Obtain food from other organism
- Possess cell walls
Two types of Fungi
Molds and Yeasts
multicellular, have hyphae, reproduce by sexual and asexual spores
Molds
unicellular, reproduce asexually by budding; some produce asexual spores
Yeasts
7 Characteristics of Algae
- Members of a group of predominantly aquatic photosyntetic organism of the kingdom protista
- Photosynthetic pigments are more varied than those of plants
- Cells have features not found among plants and animals
- Unicelllular / multicellular
- Photosynthetic
- Simple reproductive structures
- Categorize on the basis of pigmentation, storage
- Products composed of cell walls
Types of Locomotion
Pseudopodia
Cilia
Flagella
Give 5 Characteristics of Protozoa
- One-celled organism that can be free-living or parasitic in nature
- Able to multiply in humans which contributes to their survival
- Also permits serious infection to develop from just a single organism
- Can be parasitic
- Needs host to survive
- Not 100% parasitic
- Single-celled eukaryotes
- Can be free living organism
- Similar to animals in nutrient needs and cellular structure
- Live freely in water; some live in animal hosts
- Asexual (most) and sexual reproduction
- examines the physical characteristics/ appearance of the microbes
*basis for diagnosis sa sakit - outside
Microbial morphology
Seeks to understand the cell characteristics of the microbes
Inside and outside of microbes
Microbial cytology
Examines the functions and activities of the microbes in vitro or in vivo
Microbial physiology
meaning of vitro
Inside of laboratory
meaning of vivo
outside or in natural habitat
comprises the identification of isolates into known species, the classification of new isolates (creation of new taxa), and nomenclature.
Microbial taxonomy
Studies the habitat of the microbes
Microbial genetics and molecular biology
Studies the genetic makeup and evolutionary events of the microbes
Microbial ecology
Phycology
algae
Mycology
fungi
When does the Microbial cells first appeared ?
between 3.8 and 4.3 billion years ago
evolved an began the slow process of oxygenating Earth’s atmosphere, multicellular life forms eventually evolved.
Cyanobacteria (oxygenic phototrophs)
