21
9/08/15
flow of matter and energy
EQ: What happens to energy
as it is passed from
producers to consumers?
Starter: What did you
have for dinner last
night or breakfast
today?
Flow of Matter and Energy
22
9/08/15
Application/Connection/:
Notes
Connection: Mini Food Web
Practice:
Answer the Following
Exit: What do the arrows in a
food web represent?
Agenda
1. Starter
2. Practice
3. Activity
4. Exit
Homework: Carbon and
Nitrogen Cycles Web
quest due TODAY:
Table of Contents
Date
Lecture/ Activity/ Lab
8/27 Syllabus /Notebook Guidelines
8/27
Periodic Table/ Formula
8/27
Tools/ Measurement
8/27
Lab Report/ Investigations
8/27
Restroom passes/Homework Log
8/28 Testing a hypothesis
8/29
Levels of Organization
9/02
Symbiotic Relationships
9/03
Abiotic and Biotic Factors
9/4-5 Ecosystems Research and Poster
9/8
Flow of Energy
Page
1-2
3-4
5-6
7-8
9-10
11-12
13-14
15-16
17-18
19-20
21-22
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
Energy Flow
Through an
Ecosystem
Food Chains, Food Webs,
Energy Pyramids
copyright cmassengale
6
•Flow of energy
begins with the SUN
and Photosynthesis
6CO2 + 6H2O + sunlight & chlorophyll
C6H12O6 + 6O2
copyright cmassengale
7
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
•
•
copyright cmassengale
8
Organisms that can
make glucose during
photosynthesis are
called PRODUCERS.
copyright cmassengale
9
Producers use
most of the
energy they make
for themselves.
copyright cmassengale
10
Producers use
cellular respiration
to supply the
energy they need
to live.
copyright cmassengale
11
6O2 + C6H12O6 --> 6H2O + 6CO2 + energy
CELLULAR
RESPIRATION is
the chemical
reaction that
releases the
energy in glucose.
copyright cmassengale
12
The energy that is not
used by producers can
be passed on to
organisms that cannot
make their own
energy.
copyright cmassengale
13
Organisms that
cannot make their
own energy are called
CONSUMERS.
copyright cmassengale
14
Consumers that eat producers
to get energy:
•Are first order (1 ) or
primary consumers
•Are herbivores (plantst
eaters)
copyright cmassengale
15
Most of the
energy the
primary consumer
gets from the
producer is used
by the consumer.
copyright cmassengale
16
Some of the
energy moves into
the atmosphere as
heat.
copyright cmassengale
17
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).
copyright cmassengale
18
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
copyright cmassengale
19
Most of the
energy the
secondary
consumer gets
from the primary
consumer is used
by the secondary
consumer.
copyright cmassengale
20
Some of the
energy is lost as
heat, but some
energy is stored
and can passed
on to another
consumer.
copyright cmassengale
21
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 scavenger
copyright cmassengale
22
Consumers that eat producers
& other consumers
Are called
omnivores
Omnivores
eat plants
and
animals
copyright cmassengale
23
Consumers that hunt &
kill other consumers are
called predators.
The animals that are
hunted & killed are
called prey.
copyright cmassengale
24
Consumers that eat
other dead consumers
are called scavengers
copyright cmassengale
25
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.
copyright cmassengale
26
The transfer of energy from
the sun to producer to primary
consumer then to higher order
consumers can be shown in a
FOOD CHAIN.
copyright cmassengale
27
Food Chains Show Available Energy
copyright cmassengale
28
More Food Chains
copyright cmassengale
29
Another way
of showing the
transfer of
energy in an
ecosystem is
the
ENERGY
PYRAMID
copyright cmassengale
30
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
•
•
•
copyright cmassengale
31
copyright cmassengale
32
Food Webs:
•Are
interconnected
food chains
They show the
feeding
relationships in
an ecosystem
•
copyright cmassengale
33
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
9/08/14
flow of matter and energy
Starter: What did you
have for dinner last
night or breakfast
today?
Flow of Matter and Energy
22
9/08/14
Application/Connection/:
Notes
Connection: Mini Food Web
Practice:
Answer the Following
Exit:What do the arrows in a
food web represent?