PHOTOSYNTHESIS
VOCAB
REVIEW
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Molecules that interact in a
chemical reaction that are written
on the left side of a chemical
equation
reactants
Protein molecule that speeds up
chemical reactions in living
things
enzyme
An organism that CAN’T make its
own food and must get its energy
from consuming other organisms
heterotroph
Set of chemical reactions in which
the product of one reaction goes
on to be the reactant in the next
reaction
Biochemical pathway
Reactions of photosynthesis that
use light energy to produce ATP
and NADPH
Light-dependent reactions
Large enzyme in the thylakoid
membrane that uses energy from H+
ions to join ADP and a phosphate
group to make ATP
ATP synthase
Light absorbing molecule like
chlorophyll that captures energy
from the sun Pigment
Membrane sacs which stack to
make grana
thylakoids
An organism like a green plant that
can make its own food
AUTOTROPH
Molecule made of deoxyribose,
adenine, and 3 phosphates used
by living things to store and
release energy ATP
Pigments that are yellow or orange
not green
carotenoids
Clusters of light collecting
proteins found in the thylakoid
photosystems
membrane
Space surrounding the thylakoids
inside a chloroplast
stroma
Process by which plants and some
other organisms use sunlight to
convert water and carbon dioxide
(CO2) into oxygen (O2) and high
energy carbohydrates
PHOTOSYNTHESIS
Stack of thylakoid membranes
GRANUM (pl. GRANA)
The change in shape of a protein
at extremes of temperature or pH
denaturing
6 carbon sugar molecule that is
the product of photosynthesis and
the main fuel burned by cells
glucose
Reactions of photosynthesis in which
energy from ATP and NADPH is used
to build high energy sugar molecules
Calvin cycle
Negatively charge particle found
circling the nucleus of an atom
electron
Positively charged particle found
in the nucleus of an atom
proton
Cell organelle containing thylakoid
stacks where photosynthesis
happens
chloroplast
Portion of the radiation spectrum
used by plants for
photosynthesis
VISIBLE LIGHT
Particle without an electric charge
found in the nucleus of a atom
neutron
Atoms that have gained or lost
electrons so they have an electric
charge
IONS
Movement of molecules from higher
concentration to lower concentration
until equilibrium is reached diffusion
Molecules that are produced
during a chemical reaction that
are written on the right side of a
chemical equation
products
High energy electron carrier which
receives electrons and H+ ions
when water splits during the light
dependent reaction
NADP+
Difference in concentration in one
place compared to another
Concentration gradient
Group of membrane proteins that
transfers electrons between
Photosystem II and I during the
light-dependent reaction of
photosynthesis
ELECTRON TRANSPORT CHAIN
Complex carbohydrate (like
glycogen, starch, or cellulose)
made by joining MANY sugars
together
polysaccharide
Cell organelle containing thylakoid
stacks where photosynthesis
happens chloroplast