photosynthetic process

Question 1

what is the mesophyll?

Answer 1

tissue in interoir of leaf where chlorplasts are found

Question 2

what are stomata?

Answer 2

pores which gases enter and exit by

Question 3

what is the stroma?

Answer 3

a dense fluidsurrounded by two membranes

Question 4

what are thylakloids?

Answer 4

sacs within the stroma

Question 5

what are thylakloid spaces?

Answer 5

areas in middle of thylakloids

Question 6

what are granums?

Answer 6

stacks of thylakloid membranes

Question 7

where is chlorophyll II located?

Answer 7

in thylakloid membranes

Question 8

what is the overall equation?

Answer 8

6co2 + 6h2o +light energy —> glucose and 6o2

Question 9

what are the two stages called?

Answer 9

light reactions and calvin cycle

Question 10

what are the stages of light reactions?

Answer 10

water is split providing h+ ions and o2 exits leaf.
light energy which is absorbed by pigments excites electrons and h from water moving them up to next energy level and to acceptor nadp+
light reactions use solar energy to reduce nadp to nadph
also generates atp using chemioosmosis to add phosphate to adp in phosphorylation process

Question 11

what are the stages of the calvin cycle?

Answer 11

stage 1 : carbon fixation
stage 2: reduction
stage 3: regeneration of co2 acceptor (rubp)

Question 12

explain stages of calvin cycle?

Answer 12

phase 1: incorporated co2 form air by fixing it to rubp
rubisco is the enzyme which catlyses this reaction
this forms two 3 phosphoglycerates
phase 2: each 3 phosphoglycerate recieves a phosphate from atp and a pair of electrons nadph giving g3p, a sugar. for everythree co2 = 6 g3p molecules
phase 3: sugar is an output and 3 atp used to recycle left over g3p back into rubp