1108 Test 1 material
Terms
undefined, object
copy deck
- what is a ribozyme?
- self-reproducing RNA molecule
- Person: Living things appear by spontaneous generation from the non-living
- Aristotle
- Person: 1st experiment had flies appear in a jar w/ a rotting piece of meat, he then covered with gauze and no flies appeared.
- Francisco Redi
- Who did experiments that disproved the idea of spontaneous generation of organisms?
- Pasteur and Redi
- what kingdom fits into two domains- Eukarea and Bacteria?
- monera
- What is the only metabolic pathway common to all organism that doesn't require oxygen?
- Glycolosis
- Which kind of bacteria stains easier (gram stain)
- Gram Positive, because the large peptioglycan cell wall traps the dye and
- Difference bt/w Gram-Positive and Gram-negative bacteria?
- Gram Positive has a plasma membrane and a large peptidoglycan cell wall. Gram-negative has a smaller cell wall and an additional plasma membrane layer
- Which kind of gram bacteria is more threatening as far as disease and is more resistant to antibiotics?
- Gram-Negative
- How do prokaryotic cells reproduce?
- Binary fission
- What is a capsule?
-
prokaryote's sticky external layer of polysaccharide or protein
Helps aid in sticking to substrates, and shields from attacks by the host's immune system - what are fimbriae/ pili?
- hairlike appendages that help aid prokaryotes' in adherance
- T or F. Prokaryotes can survive w/o plasmids in most environments.
- T
- What are endospores?
-
Resistant cells formed by bacteria.
Most can survive in boiling water - How do obligate anaerobes get chemical energy?
- Fermentation or anaerobic respiration
- what is nitrogen fixation?
- conversion of nitrogen to ammonia
- What kind of bacteria causes Botulism, Tuberculosis, Anthrax, and Leprosy?
- Gram-Positive.
- What kind of bacteria causes Syphilis and Lyme disease?
- Spirochetes
- What kind of bacteria causes Salmonella endotoxins and Campylobacter.
- Proteobacteria
- What kind of bacteria did Mitochondria evolve from?
- Alpha Proteobacteria
- what kind of bacteria lacks peptidoglycan cell walls and is composed of parasites present in only animal cells?
- Chlamydias
- What kind of bacteria did chloroplastes likely evolve from?
- Cyanobacteria
- What illness(es) are caused by Exotoxins?
- Cholera and Botulism
- What illness(es) are caused by endotoxins?
- Salmonella
- what kind of organisms are used in bioremediation?
- prokaryotes