5A- photosynthesis Flashcards
(14 cards)
photosynthesis equation
6CO2 + 12H2O + light energy → C6H12O6 + 6H20+6O2
mesophyll cell
a plant cell type
found in leaves that contain large
amounts of chloroplasts
chloroplast
a membrane-bound
organelle only found in plant and photoautotroph cells that is the site of photosynthesis
chlorophyll
a chemical found in the thylakoids of chloroplasts. It is responsible for absorbing light energy in photosynthesis
stoma (pl. stomata)
a small pore on the leaf’s surface that opens and closes to regulate gas exchange,
-open to allow carbon dioxide to diffuse into the leaf
xylem
vascular tissue in plants responsible for transporting water and minerals from the roots to the leave
LIGHT DEPENDENT STAGE
the first stage of photosynthesis,
- light energy splits water molecules into oxygen and hydrogen inside the grana/thylakoid membranes.
LIGHT DEPENDENT INputs
12 water (H2O) molecules
12 NADP+
18 ADP + Pi
LIGHT DEPENDENT OUTputs
- 6 oxygen (O2) molecules
- 12 NADPH
- 18 ATP.
what does NADPH AND ATP do?
NADPH transfers hydrogen ions while ATP transfers energy.
LIGHT INDEPENDENT STAGE
the second stage of photosynthesis where carbon dioxide is used to form glucose in the stroma of a chloroplast.
-Also known as the Calvin cycle, the dark stage, or the light-independent reactions
- energised by the ATP and NADPH coenzymes produced in the light-dependent reactions
OCCURS IN: stroma
LIGHT INDEPENDENT INputs
- 6 carbon dioxide (CO2) molecules
- 12 NADPH
- 18 ATP
LIGHT INDEPENDENT OUTputs
- glucose (C6H12O6)
- 12 NADP+
- 18 ADP + Pi
- 6 water (H2O) molecules
light independent brief explain
- CO2 collected from the stomata in leaves enters a cyclic reaction.
- The carbon, from CO2, undergoes reactions powered by ATP and NADPH to produce a
series of carbon-based molecules. - Eventually, a specific carbon molecule is reached that goes on to contribute to the
formation of glucose, with water also being produced in this stage.
