Haley Minsker


What is photosynthesis?

process in which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.

Formula: 6CO2 + 6H2O Sunlight energy ------> C6H12O6 + 6O2.

Why we need photosynthesis.

Photosynthesis provides us with most of the oxygen we need to breathe. In return, we exhale to provide carbon dioxide for plants. We rely on plants as a source of food for ourselves and the animals we eat!

Light Dependent Cycles

This is the 1st stage of photosynthesis. Plants capture and store energy from the sun, light energy is then converted to chemical energy, in the form of ATD & NADPH. Light dependent reactions take place on the thylakoid membrandes.

Light Independent Cycles

This is the Calvin Cycle. Chemical reactions convert carbon dioxide and other compounds into glucose! This occurs in the stroma. There are three phases, carbon fixation, reduction reactions, and ribulose. The process only occurs when light is available. Plants realease sucrose into the phloem from their starch reserves.

Why is Photosynthesis required for life?

Its allows plants to "breathe" in carbon dioxide and let out oxygen. Without photosynthesis we wouldn't be able to breathe! The plant produces nutrient for food and energy that we need. Basically, without photosynthesis we would all die!


Structure of the Chloroplast

Just about all chloroplasts have their entire chloroplast genome combined into a single large ring, typically 120,000–170,000 base pairs long. They can have a contour length of around 30–60 micrometers, and have a mass of just about 80–130 million Dalton. While usually thought of as a circular molecule, there is some evidence that chloroplast DNA molecules more often take on a linear shape!



An organelle found in plant and algae cells where photosynthesis occurs.

Inner Membrane

Located under the smooth outer membrane.

Outer Membrane

The smooth outer covering of the chloroplast.


Flattened membrane sac inside the chloroplast, used to convert light energy into chemical energy.


Stack of thylakoids in a chloroplast.


The fluid of the chloroplast surrounding the thylakoid membrane.


Tissue that connects the grana to each other.


Green pigment in plants that absorbs light energy used to carry out photosynthesis


A unit of luminous flux that is the same to the amount of light given out through a solid angle of 1 steradian by a point source of 1 candela intensity radiating uniformly in all directions

Why should Chloroplast get a raise and better benifits?

Without its functions we would all die. So if we want to live they should get a raise and better benefits, they have a huge responsibility to keep us alive and they're doing a very good job at it so they deserve a raise and better benefits for keeping us alive! GO CHLOROPLASTS!

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