Carbon Cycle

1. Photosynthesis takes sunlight, _______ and _________ to make glucose and oxygen.

2. Cellular respiration takes glucose and oxygen to make ________ , water, and ________ .

3. Why do living things need both photosynthesis and cellular respiration to get energy? Write in complete sentences!

Don’t talk during the Catalyst!

4.3 Objectives

By the end of today, all SWBAT…

Identify what flows and cycles in the environment.

Illustrate how photosynthesis and cellular respiration participate in the carbon cycle

Agenda

Catalyst Energy and Matter Energy Flows Matter Cycles Quick Writes Musical chairs Exit question

Energy and Matter

Key Point #1: In the environment, energy flows but the matter cycles. Therefore, you always need more energy for the sun.

Carbon dioxide & water and glucose and oxygen are always being recycled.

Man, Mr. J, This Flowchart Rocks

Photosynthesis

Cellular Respiration

Glucose + Oxygen

Water + Carbon Dioxide

Energy (ATP)

How does energy move??

What has the energy all the energy?

Photosynthesis:

6CO2 + 6H2O + sun C6H12O6 + 6O2

Solar energy (sun)

Chemical

energy (glucos

e)

How does energy move??

What has the energy all the energy?

Cellular respiration:

C6H12O6 + 6O2 6CO2 + 6H2O + ATP

Chemical

energy (glucos

e)

Chemical

energy (ATP)

Energy Flows

Key Point #2: Solar energy chemical energy in glucose chemical energy in ATP Photosynthesis converts solar energy into the

chemical energy in glucose (it’s in the bonds). Cellular respiration converts the chemical

energy into the chemical energy in ATP (now the cell can use it).

Man, Mr. J, This Flowchart Rocks

Photosynthesis

Cellular Respiration

Glucose + Oxygen

Water + Carbon Dioxide

Energy (ATP)

Matter Cycles

Key Point #3: Carbon goes from the environment to living things and back to the environment. The carbon cycle is important since most living things are made of carbon.

We never get new carbon, it’s always being recycled.

PhotosynthesisCellular RespirationDecompositionCombustion

Four steps of the carbon cycle

Carbon Cycle

A

AProcess: Cellular respirationDefinition: plants and animals break down organic carbon to CO2

Illustration Description: Arrow points from plants/animals to environment

Cellular Respiration

CO2

CO2

CO2

CO2

Carbon Cycle

B

BProcess: PhotosynthesisDefinition: plants convert CO2 into glucose (sugar)

Illustration Description: Arrow points from environment to plants

Photosynthesis

+ CO2

Carbon Cycle

C

CProcess: DecompositionDefinition: carbon stored as fossil fuels after things die

Illustration Description: dead animals to underground

Decomposition

CC

C

C

CC

C

Carbon Cycle

D

DProcess: CombustionDefinition: burning fossil fuels releases CO2

Illustration Description: from factory to atmosphere

Combustion

CO2!!!!

What dat mean??? YOU HAVE 20 SECONDS TO QUICKLY

WRITE DOWN WHAT THE WORD MEANS! Cellular Respiration? Decompostion? Combustion? Photosynthesis?

Practice: What step of the cycle?

Involves plants removing CO2 from the atmosphere?

Involves plants and animals releasing CO2 into the atmosphere?

Involves a human activity releasing CO2 into the atmosphere?

Adds and releases CO2 into the atmosphere at the same time?

QUICK WRITE: 1 min

How does energy flow through the environment?

How does matter cycle through the environment?

Musical Chairs

Start the Homework

Exit Questions

Write in complete sentences!

Don’t talk during the Exit Question!

Fix this sentence:Energy cycles through the environment since we never receive new energy.