Shared Flashcard Set

Details

Science Plants Section1 notes
notes
13
Science
7th Grade
01/24/2012

Additional Science Flashcards

 


 

Cards

Term
Unlike animal cells, plant cells have what which provide structure and protection?
Definition
cell walls
Term
What do most plant cells contain?
Definition
the green pigment chloropyll
Term
process where plants use chlorophyll to make food
Definition
photosynthesis
Term
What is found in a cell structure called a chloroplast?
Definition
chlorophyll
Term
Most of the space inside many plant cells is taken up by a large, membrane bound structure called what? (it regulates water content)
Definition
central vacuole
Term
Why do scientist think plants probabaly evolved from green algae in the sea?
Definition
1. Plants & green algae have the same types of chlorophyll and charotenoids
2. Fossils of early plants are simialar to the ancient green algae
Term
What happened when plants evolved to land?
Definition
they had to adapt to new conditions
Term
What was more avaliable on land?
Definition
sunlight and carbon dioxide
Term
Whatis cuticle?
Definition
waxy, protective layer secreted onto the surface of the plants to live in drier conditions
Term
What is cellulose?
Definition
a chemical compound that provides structure and support awhich allows plants to stand upright on land
Term
What are vascular plants?
Definition
use tubelike structures that carry water and nutrients throughout the plant
Term
What lacks tubelik structures and uses other ways to move water and nutrients?
Definition
non vascular plants
Term
How are plant cells different from animal cells?
Definition
they contain cell walls, chlorophyll, and chloroplasts. They perform photosynthesis.
Supporting users have an ad free experience!