Light & Color
This type of molecule absorbs light. Chlorophyll is one example.
What is a pigment?
The yellow in a hickory leaf in fall comes from these pigments, which were there all along.
What are carotenoids?
The light reactions take place in these membranes inside the chloroplast.
What are the thylakoid membranes?
The Calvin cycle takes place in this fluid space of the chloroplast.
What is the stroma?
Animals that must eat other organisms for food are called this.
What are heterotrophs?
A leaf looks green because chlorophyll does this to green light.
What is reflect it?
A red maple makes this new pigment in fall from leftover sugar.
What are anthocyanins?
Splitting this molecule gives off oxygen gas, H⁺ ions and electrons.
What is water?
This enzyme attaches CO₂ to a five-carbon starter molecule.
What is RuBisCO?
A stack of thylakoids that looks like a stack of pancakes.
What is a granum?
Chlorophyll absorbs these two colors of light best.
What are violet-blue and red?
The browns in many oak leaves come from these waste compounds.
What are tannins?
This is a team of pigments that funnels light energy to a reaction center.
What is a photosystem?
The three phases of the Calvin cycle are fix, reduce and this.
What is regenerate?
These tiny leaf pores let CO₂ in and water vapor out.
What are stomata?
Carrots get their orange color from this group of pigments, which also hide in green leaves all summer.
What are carotenoids?
Cells at the base of the leaf stalk form a layer that cuts the leaf loose. This is the name of the leaf drop process.
What is abscission?
H⁺ ions flowing out through this protein power the making of ATP.
What is ATP synthase?
This three-carbon sugar is the product of the Calvin cycle.
What is G3P?
In 6 CO₂ + 6 H₂O + light → C₆H₁₂O₆ + ___, this fills the blank.
What is 6 O₂ (oxygen)?
A greenhouse that switches to only green LED lights will see poor plant growth because of this.
What is: green light is reflected, not absorbed, so little light energy is used?
Water loss, less light and snow and ice damage are three reasons a deciduous tree does this in winter.
What is drop its leaves?
Besides O₂, the light reactions make these two energy carriers.
What are ATP and NADPH?
Making one G3P uses this many ATP and this many NADPH.
What are 9 ATP and 6 NADPH?
If ATP is the battery, NADPH is this.
What is the delivery truck that carries high-energy electrons?