plants, some bacteria, some protists
3 groups that carry out photosynthesis
What do we call the bacteria that carry on photosynthesis?
Name one type of protozoa that is photosynthetic.
What are plastids?
light is not necessary for the reaction to occur
Why do we call it the light independent reaction?
Categorization of a leaf
it is filled by the electrons coming down the electron transport chain from photosystem II
How do we fill the "electron hole" that was left by the ejected electron?
Leaves contain ________, mainly chloroplasts.
Chlorophyll absorbs photons from the sun which bounce around inside the thylakoid membrane until they reach the ________ ______.
Pathway 1, systems
The light dependent reaction is further broken down into two _______
Photosystem I comes before photosystem II
Step 1, reaction center
Photons are absorbed by the "light harvesting complex" of photosystem II. Energy passes around the complex, from molecule to molecule until it reaches the ________ ______.
How many electrons does a enzyme split water molecules into?
must be filled
A cells missing electron holes ____ __ ______!
The electron "fall" down the electron transport chain sets up an _________ ________ (down the gradient) from a higher energy level to a lower energy level.
This provides the energy for making ATP in the cytochrome complex.
Also, the excited electron from photosystem I is sent to a 2nd electron transport system where it will ______ NADP+ NADPH (which will be used later)
An enzyme called _______ (most abundant enzyme on earth) ________ three molecules of carbon dioxide with three molecules of ribulose biphosphate (RuBP)
When the stomata are open and carbon dioxide is going into the leaf, something else occurs at the same time. What is it?
How can plants take in carbon dioxide and still retain the water in their leaves?
they use the excess oxygen to help "fix" the carbon dioxide
Why are oxygen levels higher in C4 plants?
net product of photosynthesis. Plants use two molecules of G3P to make one molecule of glucose.
5 molecules of G3P stay in the system; one of them leaves the system and is the
six turns to produce 2 G3P molecules which makes one molecule of glucose
Since the Calvin cycle takes in only one Carbon Dioxide molecule per turn of the cycle it takes
Regeneration of RuBP
three carbon sugar
C3 comes from the fact that the first product produced in the cycle by using rubisco and carbon dioxide is 3-PGA, a ______ ______ _____
Tiny pores in the leaves that open and close to allow carbon dioxide in are called _______
The result of the G4 pathway is a 4 carbon compound called ____________ instead of G3P
the process green plants, algae, and certain bacteria use to transform light energy to chemical energy stored in the bonds of sugar they make from carbon dioxide and water
make their own food an thus sustain themselves without consuming organic molecules derived from any other organism
organisms that produce their own food supply
all organisms that produce organic molecules from inorganic molecules using the energy of light
a light absorbing pigment in the chloroplasts that play a central role in converting solar energy into chemical energy
the green tissue in the interior of the leaf
tiny pores in a leaf
a thick fluid that fills an inner compartment of in the chloroplast
a system of inner connected membrane sacs
the steps that absorb solar energy an convert it to solar energy stored in ATP and NADPH
the second stage of photosynthesis
the incorporation of carbon from CO2 into organic compounds
the full range of electromagnetic wavelengths from the very short gamma rays to the very long-wavelength radio waves
the distance between the crests of two adjacent waves
a fixed quantity of light energy
consists of a number of light-harvesting complexes surrounding a reaction center complex
reaction center complex
contains a pair of chlorophyll a molecules and a molecule called the primary electron acceptor, which is capable of accepting electrons and becoming reduced
the chemiosomotic production of ATP in photosynthesis
plants in which the first organic compound produced is the three-carbon compound 3-PGA
a process in which, because of closed stomata, rubisco adds O2 instead of CO2 to RuBP
plants that precede the Calvin cycle by first fixing CO2 into a four-carbon compound
plants that are adapted to very dry climates