21 22 9/08/15 Flow of Matter and Energy 9/08/15 Starter: What did you have for dinner last night or...

21 229/08/15

Flow of Matter and Energy 9/08/15

Starter: What did you have for dinner last night or breakfast today?

Practice: Answer the Following

flow of matter and energy

Application/Connection/: Notes

Connection: Mini Food Web

Exit: What do the arrows in a food web represent?

EQ: What happens to energy as it is passed from producers to consumers?

Agenda 1. Starter

2. Practice 3. Activity

4. Exit Homework: Carbon

and Nitrogen Cycles Web quest

due TODAY:

Date Lecture/ Activity/ Lab Page8/27 Syllabus /Notebook Guidelines 1-28/27 Periodic Table/ Formula 3-48/27 Tools/ Measurement 5-68/27 Lab Report/ Investigations 7-88/27 Restroom passes/Homework Log 9-108/28 Testing a hypothesis 11-128/29 Levels of Organization 13-149/02 Symbiotic Relationships 15-169/03 Abiotic and Biotic Factors 17-189/4-5 Ecosystems Research and Poster 19-209/8 Flow of Energy 21-22

Table of Contents

Practice Answer the Following thinking about that you had for dinner or

breakfast

1. Why do we eat food?

2. Does the food we eat also need energy?

3. Where does the food we eat get its energy?

Application

Flow of Energy Notes

6

Energy Flow Through an Ecosystem

Food Chains, Food Webs, Energy Pyramids

copyright cmassengale

7

•Flow of energy begins with the SUN and Photosynthesis

6CO2 + 6H2O + sunlight & chlorophyll C6H12O6 + 6O2


8

Photosynthesis•Chemical reaction where green plants use water & carbon dioxide to store the sun’s energy in glucose

•ENERGY is stored in glucose

•Glucose is stored as starch in plants


9

Organisms that can make glucose

during photosynthesis

are called PRODUCERS.


10

Producers use most of the energy they

make for themselves.


11

Producers use cellular

respiration to supply the

energy they need to live.


12

CELLULAR RESPIRATION is

the chemical reaction that releases the

energy in glucose.

6O2 + C6H12O6 --> 6H2O + 6CO2 + energy


13

The energy that is not used by

producers can be passed on to

organisms that cannot make their

own energy.copyright cmassengale

14

Organisms that cannot make their

own energy are called

CONSUMERS.copyright cmassengale

15

Consumers that eat producers to get energy:

•Are first order (1st) or primary consumers

•Are herbivores (plant-eaters)


16

Most of the energy the

primary consumer gets

from the producer is used by the consumer.


17

Some of the energy moves

into the atmosphere as

heat.


18

Some energy in the primary consumer is

STORED & not lost to the atmosphere

or used by the consumer itself.

This energy is available for

another consumer (predator).


19

A Consumer that Eats Another Consumer for

Energy:•Is called a secondary or 2nd order consumer

•May be a carnivore or a omnivore

•May be a predator

•May be a scavenger


20

Most of the energy the secondary

consumer gets from the primary

consumer is used by the secondary consumer.


21

Some of the energy is lost as heat, but some energy is stored and can passed on

to another consumer.


22

A consumer that eats a consumer that already

ate a consumer:

•Is called a 3rd order or tertiary consumer

•May be a carnivore or a omnivore

•May be a predator

•May be a scavengercopyright cmassengale

23

Consumers that eat producers & other

consumers

Are called

omnivores

Omnivores eat plants

and animals


24

Consumers that hunt & kill other

consumers are called predators.

The animals that are hunted & killed are

called prey.


25

Consumers that eat other dead

consumers are called scavengers


26

Decomposers are organisms mostly bacteria or fungi like mold, mildew and mushrooms that feed on the tissues of dead organisms (producers or consumers) and return or recycle gases and nutrients to the environment.


27

The transfer of energy from the sun to producer to primary consumer then to higher order consumers can be shown in a FOOD

CHAIN.


28

Food Chains Show Available Energy


29

More Food Chains


30

Another way of showing the transfer of energy in

an ecosystem is

theENERGY

PYRAMIDcopyright cmassengale

31

Energy Pyramids Show •Amount of available energy decreases for higher consumers•Amount of available energy decreases down the food chain•It takes a large number of producers to support a small number of primary consumers•It takes a large number of primary consumers to support a small number of secondary consumers


32copyright cmassengale

33

Food Webs:

•Are interconnected food chains

•They show the feeding relationships in an ecosystem


Connection

Complete a mini food web (use at least 6 of the pictures) with the following organisms on the next slide showing which way the energy flows

copyright cmassengale 34

copyright cmassengale 35

21 229/08/14

Flow of Matter and Energy 9/08/14

Starter: What did you have for dinner last night or breakfast today?

Practice: Answer the Following

flow of matter and energy

Application/Connection/: Notes

Connection: Mini Food Web

Exit:What do the arrows in a food web represent?

21 22 9/08/15 Flow of Matter and Energy 9/08/15 Starter: What did you have for dinner last night or...

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