Embed Size (px)
DESCRIPTION
Citation preview
Click on a lesson name to select.
Biology I: Energy, Metabolism, and ATP
Click on a lesson name to select.
Agenda – Mon. Oct. 10, 2011
Warm-Up (5 min):
Lesson (15 min):
Wrap-Up (10 min):
Finish Projects/Missing Quizzes (20 min):
Click on a lesson name to select.
Today’s Objectives
I will define: energy, thermodynamics,
metabolism, photosynthesis, cellular
respiration, and adenosine triphosphate (ATP).
I will articulate the first and second laws of
thermodynamics.
I will classify two types of metabolism.
Click on a lesson name to select.
Warm-Up
1. Does available energy decrease or increase
as you go up an energy pyramid?
1. Make a simple food chain using only words.
1. Label your organisms as producer, primary
consumer, secondary consumer, tertiary
consumer, or decomposer.
Energy is the ability to do work.
How Do Organisms Obtain Energy?
Cellular Energy
Thermodynamics is the study of the flow and transformation of energy in the universe.
Chapter 8
Laws of Thermodynamics
First law—energy cannot be created nor destroyed.Derived from the law of conservation of energy.
How Do Organisms Obtain Energy?
Cellular Energy
Second law—energy cannot be converted without the loss of usable energy.Example: When consumers convert chemical
energy into kinetic energy, some energy is loss as heat to the environment but NOT destroyed.
Chapter 8
Metabolism – all of the chemical reactions in a cell
How Do Organisms Obtain Energy?
Cellular Energy
Photosynthesis—light energy from the Sun is converted to chemical energy for use by the cell
Cellular respiration—organic molecules are broken down to release energy for use by the cell
Chapter 8
ATP: The Unit of Cellular Energy
How Do Organisms Obtain Energy?
Cellular EnergyChapter 8
ATP: The Unit of Cellular Energy
ATP releases energy when the bond between the second and third phosphate groups is broken, forming a molecule called adenosine diphosphate (ADP) and a free phosphate group.
How Do Organisms Obtain Energy?
Cellular EnergyChapter 8
Click on a lesson name to select.
Wrap-Up
A. Energy cannot be converted or destroyed.
B. Energy can be converted and destroyed.
C. Energy can be converted but not destroyed.
D. Energy can be destroyed but not converted.
Which statement describes the law of conservation of energy?
Cellular Energy
Wrap-Up (Oct. 10)
Chapter 8
Which law of thermodynamics explains why the ladybug receives the least amount of usable energy?
Cellular Energy
Wrap-Up (Oct. 10)
Chapter 8
A. the first law of thermodynamics
B. the second law of thermodynamics
Cellular Energy
Wrap-Up (Oct. 10)
Chapter 8
True or False
All of the energy from the food you eat comes from the sun.
Cellular Energy
Wrap-Up (Oct. 10)
Chapter 8
A. It captures light energy from the sun.
B. It is produced in anabolic pathways.
C. It stores and releases chemical energy.
Why is adenosine triphosphate (ATP) such an important biological molecule?
Cellular Energy
Wrap-Up (Oct. 10)
D. It converts mechanical energy to thermalenergy.
Chapter 8
Look at the following figure. Which molecule is released when ATP becomes ADP?
Cellular Energy
A. phosphate group
B. water molecule
C. ribose sugar
D. energy cells
Wrap-Up (Oct. 10)
Chapter 8
Click on a lesson name to select.
Agenda – Thurs. Oct. 13, 2011
Warm-Up (5 min):
Finish up all Missing Assignments!!
No new material will be covered until after
fall break!!
Those who don’t have missing work MAY
WORK ON A PLUS ASSIGNMENTS ONLY.
Click on a lesson name to select.
Today’s Objectives
I will define: energy, thermodynamics,
metabolism, photosynthesis, cellular
respiration, and adenosine triphosphate (ATP).
I will articulate the first and second laws of
thermodynamics.
I will classify two types of metabolism.
Click on a lesson name to select.
Warm-Up
1. Which law of thermodynamics is related to
the energy pyramid?
1. How is ATP used to create energy?
1. The ability to do work is ____________.
