Bio 211

Saunders

Photosynthesis Homework

Name: Clint Wagner

DIRECTIONS: Use Chapter 10 to help answer the questions and fill in the table below. Bring to class completed at the beginning of lecture.

1. Briefly describe the big picture of what photosynthesis is all about. In your description, write out the chemical formula for photosynthesis and explain how each compound in the formula is related to the big picture.

Photosynthesis is the process in which plants turn carbon dioxide, sunlight, and water into energy and oxygen. The chemical formula is CO2 + H2O + Light energy ----> (CH2O) + O2.

2. Describe the specific purpose of the Light Capturing Reaction and the Calvin Cycle.

The purpose of the Calvin Cycle is to turn CO2 into sugar. The purpose of the Light Capturing Reaction is to turn photon's captured by chlorophyll into ATP and NADPH.

3. Fill in the descriptions of the table below.

MoleculeReaction Involved?Purpose

Photon

Light converted to chemical energy, electron. Light Dependent Reaction.To synthesize ATP and NADPH.

H2O

Electron's removed from water. Light Dependent Reaction.Produce NADPH and Oxygen.

CO2

Calvin Cycle. Produce glucose.

ATP

Light Dependent and Calvin Cycle. Produced in Light Dependent Reaction used to reduce CO2 in Calvin to carbohydrate.

NADPH

Light Dependent and Calvin Cycle.Produced in Light Depended Reaction used to reduce CO2 carbohydrate.