QUESTIONS AND CORRECT ANSWERS
Virus - CORRECT ANSWER a small infectious agent that replicates ONLY inside the living
cells of other organisms
Algae - CORRECT ANSWER -Unicellular or multicellular
-Photosynthetic
-Simple reproductive structures
-Categorized on the basis of pigmentation, storage products, and composition of cell wall
Fungi - CORRECT ANSWER A eukaryotic organism that has cell walls, uses spores to
reproduce, and is a heterotroph that feeds by absorbing its food.
molds - CORRECT ANSWER multicellular, have hyphae (filaments); reproduce by sexual and
asexual spores
yeasts - CORRECT ANSWER unicellular; reproduce asexually by budding; some produce
sexual spores
Protozoa - CORRECT ANSWER - single celled eukaryotes
- similar to animals in cell structures and nutrition (chemotroph) needs
-life stages
+ trophozoite: active stage
+ cysts: immature stage
locomotion
pseudopodia - CORRECT ANSWER ''false feet''; A cellular extension of amoeboid cells used
in moving and feeding.
cilia - CORRECT ANSWER The hairlike projections on the outside of cells that move in a
wavelike manner
,flagella - CORRECT ANSWER long, filaments-like "tails" used for swimming
bacteria - CORRECT ANSWER unicellular, lack nuclei, possess unique shapes
-found in extreme environments and where there is sufficient mositure
-reproduce asexually
bacteria - CORRECT ANSWER cell walls contain peptidoglycan, some lack cell walls
-some cause diseases
-some are beneficial to human flora
archaea - CORRECT ANSWER cell walls composed of polymers other than peptidoglycan
-many live in extreme environments
(high heat, high salt, and high pressure)
Era of Speculation - CORRECT ANSWER - 5000 B.C to 1600
- foods - bread, wine
- diseases - plagues, syphilis
- domesticated plants for farming
- livestock animals
organism - CORRECT ANSWER -increase in size over time (growth)
- reproduce
- responds to environment
- movement
- metabolism
- complex & exhibit organized structure
theory if spontaneous generation - CORRECT ANSWER originated with the Greek philosphers
in the middle ages
, -Is there a link between disease and the environment?
- fall ill and not catch it again after contact?
-add little old wine to make grape juice into wine?
Antoni van Leeuwenhoek (1632-1723) - CORRECT ANSWER - simple microscopes
- "animalcules"
- father of microbiology
Carolus Linnaeus (1707-1778) - CORRECT ANSWER taxonomy, developed system for
naming and grouping
he grouped Leeuwenhoek's microorganisms into five categories (small animals, fungi, protozoa,
algae, and prokaryotoes)
Taxonomy - CORRECT ANSWER consists of classification, nomenclature, and identification
binomal nomenclature - CORRECT ANSWER Classification system in which each species is
assigned a two-part scientific name
-genus
-species
hierarchical system - CORRECT ANSWER standarized the classification of organisms based
on shared characteristics
-kingdom
-phylum
-class
-order
-family
-genus
-species
Linnaeus - CORRECT ANSWER Who proposed only two kingdoms system?
- animalia and plantae