Photosynthesis Objectives and Concepts

Photosynthesis is an ______ process that uses light energy and water to produce glucose

Photosynthesis mainly occurs in the ______

The pores in a plant's cuticle through which water vapor and gases are exchanged are called ______

The mesophyll in many eudicot leaves has two distinct layers: ______ and spongy

The process of photosynthesis takes place in ______ cells of the leaf

The main reactants of photosynthesis are carbon dioxide (CO2) and ______

Spongy mesophyll, located inward from the lower epidermis, consists of irregularly shaped cells that have fewer ______.

Chloroplast Organelle where photosynthesis takes place. ______ Outer Membrane Inner Membrane Thylakoid stacks are connected.

Thylakoid Granum Thylakoid Thylakoid Membrane Granum Grana makes up the ______ inner membrane.

Thylakoid Space Question: Why are plants green. Chlorophyll Molecules Located in the thylakoid membranes Chlorophyll have Mg+ in the center Chlorophyll pigments harvest energy (photons) by absorbing certain wavelengths (blue-420 nm and red-660 nm are most important) Plants are green because the green wavelength is reflected, not absorbed. ______ of Light by Chlorophyll Chlorophyll absorbs blue-violet & red light best ______ violet blue green yellow wavelength orange red

Fall Colors In addition to the chlorophyll pigments, there are other pigments present During the fall, the green chlorophyll pigments are greatly reduced revealing the other pigments Carotenoids are pigments that are either red, orange, or ______

Oxidation Reaction The loss of electrons from a substance or the gain of ______.

Reduction Reaction The gain of electrons to a substance or the loss of ______.

Energy for Life on Earth Sunlight is the ULTIMATE energy for all life on Earth Plants store energy in the chemical bonds of ______.

Structure of ATP ATP stands for adenosine ______.

Removing a Phosphate from ATP Breaking the LAST PHOSPHATE bond from ATP, will -- Release ENERGY for cells to use Form ______ Produce a FREE PHOSPHATE GROUP High Energy Phosphate Bond FREE PHOSPHATE can be re-attached to ADP reforming ATP Process called Phosphorylation