Shared Flashcard Set

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Plants
4/17/09
23
Science
7th Grade
04/16/2009

Additional Science Flashcards

 


 

Cards

Term
chlorophyll
Definition
the green pigment that is needed in photosynthesis
Term
chloroplast
Definition
the cell organelles that holds the chlorophyll
Term
cell wall
Definition
maintains the shape and supports the cell
Term
central vacuole
Definition
takes up most of the space in a plant and stores food, water, and more
Term
roots
Definition

part of a plant body that typically lies below the surface of the oil

 

Jobs:

1. entrance point for water

2. anchor/supports plant

Term
stems
Definition

located above the ground

 

jobs:

1. supports the branches leaves and flowers

2. transports materials between the roots and leaves

Term
parts of the stem
Definition

1. Vascualt Bundle

2. phloem

3. Xylem

Term
Xylem
Definition
vessels transport water from the roots throughout the plant
Term
Phloem
Definition
tubes that move food throughout a plant
Term
photosynthesis
Definition
plants convert sunlight energy into chemical energy (sugar)
Term
Leaves
Definition
the part of the plant where photosynthesis occurs
Term
Epidermis
Definition

located on the upper and lower surfaces of the leaf

 

 

it covers and protects the leaf

Term
Waxy Cuticle
Definition
its a waxy protective layer secreted by the cells on the surface of the plant to help save its water
Term
Stomata
Definition
allows carbon dioxide and oxygen to enter and exit the leaf
Term

 

Gaurd Cells

Definition
open and close the stomata
Term
Palisade Layer
Definition

located below the upper epidermis

 

 

Term
Spongy Layer
Definition
makes air space for the exchange of carbon dioxide and oxygen
Term
Cellulose
Definition
cell walls that contain a chemical made out of sugar that form tangeled fibers in plant cell walls to provide structure and support
Term
Respiration
Definition
a chemical reaction that breaks down food molecules and releases stored energy
Term
Petals
Definition
surround the reproductive organs
Term
Stamen
Definition

male reproductive organ

 

 

produces pollen

Term
Pistil
Definition

female reproductive organ

 

 

 

receive pollen

Term
Pollination
Definition
when the stamen produces pollin and the pollin enters the pistil
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