Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
25 Cards in this Set
- Front
- Back
|
Photosynthesis
|
The process by which a cell captures energy in sunlight amd uses it to make food
|
|
|
Autotroph
|
An organism that makes its own food
|
|
|
Heterotroph
|
An organism that cannot make its on food
|
|
|
Plants are:
|
Autotrophs
(They make food through photosythesis) |
|
|
Living things need
|
Energy for cells
|
|
|
During photosynthesis:
|
plants and some other organisms use energy from the sun to convert carbon dioxide and water into oxygen and sugars
|
|
|
Photosynthesis stages
|
2 stages!
|
|
|
Stage one
|
Capturing Energy from sunlight
|
|
|
Capturing Energy
|
Chloroplasts
|
|
|
Stage 2
|
Captured light energy is used to produce sugars and oxygen from water and carbon dioxide.
|
|
|
Carbon dioxide
|
Enters leaf through openings (called stomata)
|
|
|
Water
|
Enters plant through roots and moves up toward leaf
|
|
|
Sugars
|
are produced by plant cells for energy
|
|
|
Oxygen
|
exits through stomata on underside of leaf
|
|
|
Stomata
|
Small openings on underside of leaf
(2 stomata, 1 stoma) |
|
|
H20 and C02
|
move into chloroplasts
under go many complex chemical changes and reactions produce chemicals as products |
|
|
C6H12O6
|
Six carbon Sugar
one product from water and carbon dioxide |
|
|
6 Carbon sugar
|
used for more energy
|
|
|
Requires light
|
Stage One
|
|
|
Photosynthesis Equation
|
6 CO2 (carbon dioxide) + 6 H2O -> lightenergy -> C6H12O6 (sugar) + 6 O2 (oxygen)
|
|
|
Arrow
|
connect raw materials to products
|
|
|
Living things need Energy for
|
the cells to carry out heir proper functions
|
|
|
Green
|
comes from pigments
|
|
|
Pigments
|
colored chemical compounds that absorb light
|
|
|
Chlorophyll
|
The main photosynthetic pigment in chloroplasts
|
