Chapter 10 Flashcards
the process that converts solar energy into chemical energy
photosynthesis
CO(2)+ H(2)O»»
C(6)H(12)O(6) + O(2)
obtain their organic material from other organisms
heterotrophs
CO(2) enters and O(2) exits the leaf through microscopic pores called…
stomata
The chlorophyll is in the membranes of…
thylakoids
thylakoids may be stacked in columns called
grana
chloroplasts also contain …, a dense interior fluid
stroma
What are the 2 stages of Photosynthesis
Light reactions and Calvin Cycle
What is the purpose of Light Reactions?
to make ATP and NADPH
What powers the Light Reactions?
Sunlight, water used, releasing O(2) as waste
Where is the Light Reactions located?
Thylakoids
How is light captured?
photosynthetic pigments
wavelengths that are not absorbed are…
reflected or transmitted
Why do leaves appear green?
because chlorophyll reflects and transmits green light
a graph plotting a pigment’s light absorption versus wavelength
absorption spectrum
profiles the relative effectiveness of different wavelengths of radiation in driving a process
action spectrum
What goes in to Light Reactions?
H2O and Light
What comes out from Light Reactions?
ATP and NADPH
What is the purpose of The Calvin Cycle in photosynthesis?
to make sugars
what happens in the calvin cycle?
using energy from ATP and NADPH, atoms from CO(2) are made into sugars
where is the calvin cycle located?
stroma
What are the 3 phases of the Calvin Cycle?
- carbon fixation
- reduction
- regeneration of the CO(2) acceptor
excess sugars are stored as ….. in plants
starch
