Describe photosynthesis in terms of how it transforms energy. Autotrophs use energy from their environment to fuel the assembly of carbohydrates. Then, they combine and recombine these molecules to produce living tissue, such as cellulose. Light Energy Chemical Energy ?

Explain why light alone is not enough to make a glucose molecule. Light is not made from atoms Autotrophs use energy from their environment to fuel the assembly of carbohydrates. Then, they combine and recombine these molecules to produce living tissue, such as cellulose.

Explain how autotrophs obtain the carbon atoms needed to make glucose. CO2 gas Autotrophs use energy from their environment to fuel the assembly of carbohydrates. Then, they combine and recombine these molecules to produce living tissue, such as cellulose.

Explain how autotrophs obtain the hydrogen and oxygen atoms needed to make glucose. Autotrophs use energy from their environment to fuel the assembly of carbohydrates. Then, they combine and recombine these molecules to produce living tissue, such as cellulose.

Explain how CO2 gas gets inside an autotroph. Leaf stomata Autotrophs use energy from their environment to fuel the assembly of carbohydrates. Then, they combine and recombine these molecules to produce living tissue, such as cellulose.

Explain how H2O gets inside an autotroph. Roots Autotrophs use energy from their environment to fuel the assembly of carbohydrates. Then, they combine and recombine these molecules to produce living tissue, such as cellulose.

In addition to glucose, what else does photosynthesis produce? O2 gas Byproduct Autotrophs use energy from their environment to fuel the assembly of carbohydrates. Then, they combine and recombine these molecules to produce living tissue, such as cellulose.

Explain how the O2 byproduct gets out of an autotroph. Leaf stomata Autotrophs use energy from their environment to fuel the assembly of carbohydrates. Then, they combine and recombine these molecules to produce living tissue, such as cellulose.

How many CO2 molecules does an autotroph need to make 1 molecule of glucose? 6 + +

+ + Explain why 6 molecules of CO2 are needed to make glucose. Glucose = C6H12O6 + +

How many H2O molecules does an autotroph need to make 1 molecule of glucose? 6 + +

+ + Explain why 6 molecules of H2O are needed to make glucose. Glucose = C6H12O6 + +

+ + Explain why photosynthesis produces 6 molecules of O2. Too much oxygen is taken in Extra oxygen is released as a byproduct + +

Explain why this is called the photosynthesis “equation.” # of atoms on reactant side = # of atoms on product side Atoms change, but are not destroyed Energy absorbed Autotrophs use energy from their environment to fuel the assembly of carbohydrates. Then, they combine and recombine these molecules to produce living tissue, such as cellulose.

Identify the location of photosynthesis in a eukaryotic cell. Chloroplast

Identify structure A in the diagram below. Chloroplast

Identify structure B in the diagram below. Thylakoid

Identify structure C in the diagram below. Granum (stack of thylakoids) D A E C B

Identify the molecules labeled D in the diagram below. Chlorophyll

Identify E in the diagram below. Stroma (clear liquid)

What are chlorophyll molecules able to do? Absorb light energy

What is light? Energy traveling in wave form

Why are there different colors of light? Different wavelengths

White light from the Sun is actually a mixture of all the of light. wavelengths

Chlorophyll absorbs nearly 100% of and light. purple blue

Predict what would happen if you tried to grow a plant under pure blue light. Chlorophyll absorbs blue light very well The plant would grow

Chlorophyll absorbs about 80% of light. red

Predict what would happen if you tried to grow a plant under pure red light. Chlorophyll absorbs red light well The plant would grow

Chlorophyll only absorbs about 10% of light. yellow

Predict what would happen if you tried to grow a plant under pure yellow light. Chlorophyll only absorbs a 10% of yellow light The plant would only grow a little bit

Chlorophyll absorbs 0% of light. Instead, it green light. green reflects

Predict what would happen if you tried to grow a plant under pure green light. Chlorophyll does NOT absorb green light The plant would not grow The plant could die

Chlorophyll reflects green light Explain why all autotrophs are green. Autotrophs contain chlorophyll Chlorophyll reflects green light