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Fungi
+ circulatory system
| Question | Answer |
|---|---|
| why are fungi attractive to the industry? | they're easy to grow, make mutants and do genetic crosses, and their molecular biology is well developed |
| what are saccharomyces cerevisiae? | brewer's and baker's yeast |
| what is the history behind penicillin? | a contaminant was discovered killing bacteria on a plate, which was discovered as an antibiotic |
| what happens when elevation increases and concentration of O2? | amount of O2 stays the same, but the concentration is different |
| is O2 diffusion rate in water slower or faster than air? | slower |
| is O2 concentration in water lower or higher in air? | lower |
| alveoli | air sacs at the end of bronchioles in the lungs, primary site for gas exchange, fluid-filled |
| what can aquatic animals that are in low O2 environments do to pick up more O2? | increase their surface area |
| components of open circulatory system | -low pressure, hydrostatic -animals have slow nutrient turnover -blood and interstitial fluid aren't separated -energetically less costly -blood is in direct contact with internal organs |
| components of closed circulatory system | -high hydrostatic pressure -blood separated from interstitial fluid -animals that require greater and more efficient supply of nutrients -supports high metabolic rates |
| what organisms have an open circulatory system? | mollusca, arthropods. |
| hemolymph and how it works | fluid in open circulatory systems. it's picked up from the back, blood pumped into veins (low pressure) |
Created by:
madalynes