Model Organisms In Biological Research (W11c) Flashcards
One of the 1st model organisms?
Guinea pigs.
What were guinea pigs used to study?
Physiological research.
Egs of physiological research? (2)
• Respiratory physiology & asthma.
• Gastrointestinal physiology.
Model organisms/habitats attributes? (8)
• Simple (behaviour, body plan, etc).
• Similar function to humans.
• Extreme.
• Easy to find.
• Abundant (not rare).
• Not dangerous.
• Easy & cheap to maintain in captivity.
• Short generation times.
Model organism being extreme attributes? (2)
• Signal to Noise ratio.
• Mouse vs Elephant in body mass (eg).
Egs of model organisms? (7)
• Guinea pigs.
• C. elegans.
• Zebra fish.
• Lab rats.
• Zenepas frogs.
• Fruit flies.
• Snakes.
Why is C. elegans a successful model organism? (3)
• Have a fixed no. of cells.
• Simple genome.
• Short lifespan.
What research types were Zebra fish used for? (2)
• Embryological research.
• Genetics research.
What research type were Zenepas frog used for?
Embryological research.
What research type were Fruit flies used for?
Genetic research.
Simple attributes of snakes as model organisms? (4)
• Simple feeding (discreet meals).
• Simple body shape (tube).
• Simple behavioural repertoire.
• Discreet & easily quantifiable spatial ecology.
Extreme attributes of snakes as model organisms? (4)
• Large meals.
• Large change in effective SA (tube to circle).
• Dramatic elongation of anatomy.
• Dichotomous foraging modes.
Attributes of snakes as model organisms? (8)
• Simple feeding (discreet meals).
• Simple body shape (tube).
• Simple behavioural repertoire.
• Discreet & easily quantifiable spatial ecology.
• Large meals.
• Large change in effective SA (tube to circle).
• Dramatic elongation of anatomy.
• Dichotomous foraging modes.
Use of chemical crypsis by ambush foraging snakes?
To prevent scent-oriented animals/predators from detecting it.
Animals used to demonstrate the effectiveness of chemical crypsis snakes? (3)
• Dogs.
• Meerkats.
• Elephants.
