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PLANTS GRADE 4 MR G

PLANTS GRADE 4 MR G mles

TermDefinition
root (rhizome) (bulb) underground part of a plant - takes in water and nutrients - provides anchor - some provide storage of food for the plant
root hairs very fine root structures where water and nutrients enter the plant
stem / trunk provide support and a transportation system for water and nutrients
leaf / leaflet primary location of chlorophyll, that converts sunlight to sugars (food for the plant)
flower the reproductive structure of the plant - may be pollinated by wind or by insects
photosynthesis the process that converts sunlight into energy - CO2, H20, and light energy produces a carbohydrate (glucose) and oxygen. ( 6CO2 + 6H2O + light energy = C6H12O6 + 6O2)
carbon dioxide / CO2 people waste
Oxygen / O2 plant waste
pollination the process of pollen leaving the stamen and arriving on the pistil
pistil the female part of a flower
stamen the male part of a flower
adaptation, behavioral and structural
spore reproductive cells of ferns, mosses, and a few other plants - contains both male and female parts - contrast to seed producing plants
sperm male reproductive cell
ovule female reproductive cell - develops into a seed
dormant alive, but not growing
deciduous plants that have no leaves in the winter
phototropism an adaptation of plants, bending towards the sun
sepal specialized leaves at the base of a flower - they protected the flower as it was developing
petal the generally colorful part of a flower
pollen found on the stamen, contains the male reproductive cell, sperm
embryo the part of the seed that will develop into a new plant
seed a dormant structure, often surrounded by fruit, that can develop into a plant - seeds thousands of years old can still sprout!
chlorophyll, The chemical that allows photosynthesis to take place
sexual reproduction pollen producing plants need a male and female flower to reproduce- some plants have male and female flowers on one plant - others need a neighbor
asexual reproduction plants that reproduce with spores and therefore do not need a male and female flower
*germinate when conditions are right, a seed begins to grow
*dormant alive, but not growing - seeds are dormant until they germinate- many plants are dormant in the winter
*seed leaves the first leaves that emerge from a seed
*root tip the end of a root
*vascular plants have a well developed transport system
*nonvascular without a well developed transport system - therefore can not grow as tall
*germination when a seed or spore begins to grow after being dormant- seeds that are thousands of years old have been germinated!
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Created by: Mr Giss
 

 



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