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Chapter 5 Science

Epidermis thin outer layer of cells
Xylem moves water & minerals to other parts of the plant
Phloem carries sugars made in the leaves throughout the plant
Stoma small holes that water & gases pass in & out of the plant through
Some plant have 1 large root called a taproot with many roots growing from it
Transpiration loss of water from leaf
Tropism plant behavior cause by growth toward or away from something in the environment
Photosynthesis process through which plants make glucose
Cellular respiration process by which cells break down glucose wit the release of energy
Cuticle waxy layer that may cover a leaf & slow water loss
Describe 2 functions of stems in a flowering plant. Stems provide support for the plant as it grows. the stems also have xylem & phloem which move water, minerals, and glucose through the plant.
Describe the carbon dioxide-oxygen cycle & explain how it benefits plants & animals. Use the terms photosynthesis & cellular respiration in your answer. Photosynthesis uses the sun, carbon dioxide, & water to make glucose and oxygen. cellular respiration uses oxygen to break down glucose. this provides energy for the plant. animals exhale carbon dioxide which provide the plant with what it needs to prod
Compare/contrast spores & seeds. Spores contain single cells that grow into new plant & a seed contains a multicellular embroyo that develops into a new plant.
3 examples of tropism. Gravitropism- plant responses to gravity; roots grown down & stems grow up Phototropism- responses to light; stems bend forward to the light & roots bend away from light Thigmotropism- responses to touch; plants grow toward the surface they touch
How does the environment influence the time at which a seed germinates? How this help it survive? Seeds need a certain temperature, water, & oxygen. If the environment isn't right seeds won't germinate & the embryo stays inside the seed
are taproots that store extra food made by the plant Carrots
Carrots are roots that store water
open and close a leaf's stoma Guard cells
During photosynthesis plants use energy from the sun, carbon dioxide from the air, & water to make glucose & oxygen
releases energy & is called the power house of the cell A mitochondrian
Some seed plants called angiosperms produce flowers
Most seeds develop into a fruit
the female cone closes up & seeds grow in it After fertilization
can result from chemicals the plant makes Plant behaviors
Created by: chenry13