Exam 1 Flashcards
Rauvolfia Serpantina
(snakeroot) has been used by indigenous cultures of generations (India and Nepal) to treat insanity, epilepsy, insomnia, and anxiety. Its chemical compounds were analyzed in the late 1940’s, eventually becoming synthesized to make reserpine medicine.
How did Rauvolfia Serpentina earn its nickname
Earned the nickname “snakeroot” by ancient hindu people, who used it to treat snake bites. The root is also long and twisted, resembling a snake.
Ethnobotany
The study of people and their use of plants
Indigenous Peoples
refers to the people who follow traditional, non-industrialized lifestyles in areas they have occupied for generations
Examples of indigenous peoples use of plants
Maori of New Zeland: gourds for drinking water
Sami: Moss for warmth
Richard Schultes
Father of ethnobotany, spent 12 years cataloging rubber trees and identifying medicinal /psychoactive plants in the amazon.
Ecosystem
a community of interacting services and their physical environment
Ecosystem Services
any positive benefit that an ecosystem may provide to people
Biodiversity
the variety of life found in a particular ecosystem
4 types of ecosystem services
Provisioning (goods/services), regulating (climate/erosion control), cultural (beauty/recreation), and supporting (oxygen/long periods of time)
Autotroph
organisms that are able to harvest the carbon they need directly from inorganic compounds such as co2
Photoautotrophs
photosynthetic (use light to break up co2 into glucose)
Photosynthesis
the process by which plants, algae, and photosynthetic bacteria use light energy to drive the synthesis of organic compounds)
Pigment
any type of colored substance produced by the plant
FORMULA
6CO2+12H2) + Light Energy = C6H12O6 + 6O2 +6H2O
Greenhouse gasses
gasses that trap heat in the atmosphere
carbon sequestration
the process in which atmospheric carbon dioxide is taken up by trees, grasses, and other plants through photosynthesis and is stored as carbon in biomass
contribution of roots to plant growth and health
regulate climate, migrate wind velocities, reduce radiation from bare ground, and support our ecosystem/food chain
components of the shoot system
conductive system consisting of xylem tissues (carry water and dissolved nutrients upward), and the phloem (transports products synthesized in the leaves and stems through the plants) and vascular cambium (protective layer of cells in wood plants)
leaf modifications
runners or stolons, asexual plants, tubers (underground), rhizomes (aboveground)
angiosperms
seed that forms in the ovary of a flower, surrounded by a protective fruit (MORE COMMON)
gymnosperms
seeds formed in unisexual (naked) cones, utilizing seeds and pollen for reproduction
perfect flower
1 flower housing both sexes
imperfect flower
1 flower housing only one sex