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PLANTS GRADE 4 MR G
PLANTS GRADE 4 MR G mles
| Term | Definition |
|---|---|
| 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! |
| * | |
| * |
Created by:
Mr Giss
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