osmosis + diffusion + photosynthesis Flashcards
diffusion
is the movement of small particles across the cell membrane until homeostasis is reached.
Facilitated diffusion
requires the help of carrier and channel proteins
These particles move from an area of high concentration to an area of low concentration.
The direction of diffusion is said to be
be ‘down’ or ‘with’ the concentration gradient.
(v smere koncentračného spádu)
Osmosis
is the movement of water through a selectively permeable membrane (like the cell membrane)
Water moves
across the cell membrane from an area of low concentration (of osmotically active substances) to an area of high concentration. (of osm. active sub.)
Semi-permeable membrane is
permeable to water, but not to sugar
where do the light-dependant reactions occur?
thylakoid membrane
where does the calvin cycle occur
stroma
write the correct equation for photosynthesis
6CO2 + 12H2O + Sunlight -> C6H12O6 +6H2O + 6O2
where the reactants for photosynthesis?
light, water and carbon dioxide
the fluid like substance found inside the chloroplast is called
stroma
stack of thylakoids is
granum
during light reactions, water molecules break apart into
two protons (H+( and oxygen atoms are expelled as O2 gas through the stomata
photosystem II is responsible for
ATP production
photosystem I produces another important energy carrier, which is
NADP + into NADPH
RuBP is very important molecule in the Calvin Cycle, bcs it is the
acceptor of CO2
what molecules return to the light reactions from the Calvin Cycle?
NADPH
ADP
