Classifying And Types Of Organisms

Question 1

-No nucleus- DNA is held in a nucleoid
-No membrane bound organelles
-Usually smaller
-Cell wall composed of peptidoglycan

Answer 1

Prokaryotes

Question 2

-contains a nucleus, cytoskeleton, and membrane bound organelles
-DNA is more complex
-cytoskeleton is made of protein that provide shape and support

Answer 2

Eukaryotes

Question 3

A way of differentiating types of bacteria with dyes

Answer 3

Gram staining

Question 4

Stain violet and have thick peptidoglycan walls

Answer 4

Gram positive

Question 5

Stain red and have thin peptidoglycan walls. More resistant to antibiotics

Answer 5

Gram negative

Question 6

Prokaryotic one celled microorganisms Of the kingdom Monera, free or parasitic, multiply by binary fission, large range of biochemical properties.
-cause for many infections
-microscopic but larger than viruses

Answer 6

Bacteria

Question 7

Method of asexual reproducing involving halving the nucleus and cytoplasm of the cell followed by the development of each half into a new individual cell

Answer 7

Binary fission

Question 8

Visible group of bacteria growing on a solid medium, presumable arising from a single microorganism.
-form colonies that can be seen without a microscope

Answer 8

Bacterial colony

Question 9

Lack cell walls and are highly pleomorphic.
-smallest and most simple self replicating
-colonies grow in fried egg shape
-Produce hydrogen peroxide

Answer 9

Mycoplasmas

Question 10

Irregular or “variant” form exists

Answer 10

Pleomorphic

Question 11

Gram-negative, pathogenic obligate intracellular parasite.
-rod shaped, but can change shape
-usually spread via arthropod vectors
-cannot live outside of host cell

Answer 11

Rickettsia

Question 12

Large group of non motile, gram-negative intracellular parasites.
-replicate in host cell
-spherical shaped
-rigid cell walls with large amounts of lipids

Answer 12

Chlamydia

Question 13

Eukaryotic animal-like, unicellular organisms, some of which can be pathogenic.
-no cell wall
-rigid forms that can change throughout development
-most prevalent microorganism

Answer 13

Protozoa

Question 14

Group of diverse and widespread unicellular and multicell organisms, lacking chlorophyll, usually hearing spores and often filamentous
-grow in decomposing matter
-grow in round patterns
-associated with conditions that cause immunosuppression

Answer 14

Fungus

Question 15

Grow in long chains or strands

Answer 15

Filamentous

Question 16

Intracellular, infectious parasite capable of replicating only in living cells, containing only one form of nucleus acid
-very small
-many types and classifications
-can only live and replicate in living cells
-can infect any living cell

Answer 16

Virus

Question 17

Small proteinaceous infectious particle that is believed to be responsible for spongiform encephalopathies in humans and other mammals
-non living organism
-so not contain DNA or RNA

Answer 17

Prion