PHOTOSYNTHESIS. A utotroph (Producers) Make their own food Photosynthesis Chemosynthesis - Plants - Some bacteria & protists. Heterotroph (Consumers) Energy obtained by eating. Photosynthesis. 6H 2 0 + 6CO 2 C 6 H 12 O 6 + 6O 2. How can plants do it?.
Make their own food
- Some bacteria & protists
Energy obtained by eating
6H20 + 6CO2 C6H12O6 + 6O2
Which wavelengths/ color(s) are reflected?
What is the relationship between reflection of light and the perception of color?Interpreting Diagrams
It is just hidden by other pigments.Not all plants have green leaves…
Method of separating pigments
The solvent moves past the spot that was applied
The pigments will differ in solubility and in the strength of their adsorption to the adsorbent
Some will be carried farther up the plate than others.How do we know?
ADP + P
Light- dependent reactions
Light is absorbed by chlorophyll in clusters called photosystems
A flow of e- starts
This provides energy to make ATP & NADPH
Water is split to replace e- and allow the flow to continue & O2 is released
ATP & NADPH go to the stroma to fuel the Calvin CycleLight-Dependent Reactions
NADP+ + 2e- NADP-
NADP- + H+ NADPH
1. CO2 enters the stroma photosystems
2. It combines with a
5-C sugar RuBP using the enzyme Rubisco to form a 3-C acid (carbon fixation)
Using energy from ATP & NADPH high energy sugars (G3P) are made for the plant
4. ADP & NADP+ go back to the thylakoid to be “recharged”Calvin Cycle
In order for the “cycle” to continue, RuBP must be regenerated. 3 “turns” of the Calvin Cycle are needed to generate one G3P molecule. In other words, 3 CO2 molecules are used to make 1 G3P and remake RuBP.
The two sets of photosynthetic reactions work together.
Food serves as a source of raw materials, or building blocks, for the cells in the body and also as a source of energy.
Oxygen + Glucose Carbon Dioxide + Water + ATP
(6O2 + C6H12O6 6CO2 + 6H2O + ATP)
- in cells, such as muscle cells, the pyruvic acid from
glycolysis is converted to lactic acid
- pyruvic acid + NADH → lactic acid + NAD+
**Fermentation regenerates NAD+ so that glycolysis can continue