Energy and Cellular Respiration Part 1
-
Upload
mdonohuehghs -
Category
Documents
-
view
217 -
download
0
Transcript of Energy and Cellular Respiration Part 1
![Page 1: Energy and Cellular Respiration Part 1](https://reader030.fdocuments.in/reader030/viewer/2022021323/577d39111a28ab3a6b99046d/html5/thumbnails/1.jpg)
8/14/2019 Energy and Cellular Respiration Part 1
http://slidepdf.com/reader/full/energy-and-cellular-respiration-part-1 1/20
Energy and Cellular
RespirationChapter 7
![Page 2: Energy and Cellular Respiration Part 1](https://reader030.fdocuments.in/reader030/viewer/2022021323/577d39111a28ab3a6b99046d/html5/thumbnails/2.jpg)
8/14/2019 Energy and Cellular Respiration Part 1
http://slidepdf.com/reader/full/energy-and-cellular-respiration-part-1 2/20
Cellular Respiration vs.
Photosynthesis• Formulas
![Page 3: Energy and Cellular Respiration Part 1](https://reader030.fdocuments.in/reader030/viewer/2022021323/577d39111a28ab3a6b99046d/html5/thumbnails/3.jpg)
8/14/2019 Energy and Cellular Respiration Part 1
http://slidepdf.com/reader/full/energy-and-cellular-respiration-part-1 3/20
Cellular Respiration vs.
Photosynthesis• Organelles
• Mitochondria• Eukaryotic cells
•Structure is key
− Two membranes
− Space between membranes
− Matrix makes up inner membrane
– Lots of enzymes foundhere for chemical
reactions− Complex folding=many sites
for reactions to take place – Maximizes ATP
production
• Chloroplast•
More about this one later…
![Page 4: Energy and Cellular Respiration Part 1](https://reader030.fdocuments.in/reader030/viewer/2022021323/577d39111a28ab3a6b99046d/html5/thumbnails/4.jpg)
8/14/2019 Energy and Cellular Respiration Part 1
http://slidepdf.com/reader/full/energy-and-cellular-respiration-part-1 4/20
Energy• Heat (thermal)
• Light (solar)
• Electrical
• What carries energy?
• Electrons (little energy packets)
• Negatively charged particle
• Involved in making bonds between
atoms
• Electromagnetic spectrum
![Page 5: Energy and Cellular Respiration Part 1](https://reader030.fdocuments.in/reader030/viewer/2022021323/577d39111a28ab3a6b99046d/html5/thumbnails/5.jpg)
8/14/2019 Energy and Cellular Respiration Part 1
http://slidepdf.com/reader/full/energy-and-cellular-respiration-part-1 5/20
![Page 6: Energy and Cellular Respiration Part 1](https://reader030.fdocuments.in/reader030/viewer/2022021323/577d39111a28ab3a6b99046d/html5/thumbnails/6.jpg)
8/14/2019 Energy and Cellular Respiration Part 1
http://slidepdf.com/reader/full/energy-and-cellular-respiration-part-1 6/20
How is Energy
Transferred?• Think food chain!
• First Law of
Thermodynamicsaka the Law of
Conservation of
Energy
• E cannot be created
or destroyed, only
transferred
(converted)
![Page 7: Energy and Cellular Respiration Part 1](https://reader030.fdocuments.in/reader030/viewer/2022021323/577d39111a28ab3a6b99046d/html5/thumbnails/7.jpg)
8/14/2019 Energy and Cellular Respiration Part 1
http://slidepdf.com/reader/full/energy-and-cellular-respiration-part-1 7/20
Kinetic vs. Potential
• Energy of motion
• Anything moving
or in motion• Ex.
• Climbing stairs
• Leg muscles
working
•Stored energy due to an objects
position or arrangement
•As you climb up, you are getting
higher, more gravitational pull,
increase potential E
![Page 8: Energy and Cellular Respiration Part 1](https://reader030.fdocuments.in/reader030/viewer/2022021323/577d39111a28ab3a6b99046d/html5/thumbnails/8.jpg)
8/14/2019 Energy and Cellular Respiration Part 1
http://slidepdf.com/reader/full/energy-and-cellular-respiration-part-1 8/20
Two Types of Kinetic
Energy• Directed kinetic
energy
• Ex. Your body asit moves down
slide
• Random kinetic
energy of molecular
motion
• Thermal energy
• Ex. When your body
collides with water. Air
and water molecules
are forced to move andcollide at random,
transferring energy
![Page 9: Energy and Cellular Respiration Part 1](https://reader030.fdocuments.in/reader030/viewer/2022021323/577d39111a28ab3a6b99046d/html5/thumbnails/9.jpg)
8/14/2019 Energy and Cellular Respiration Part 1
http://slidepdf.com/reader/full/energy-and-cellular-respiration-part-1 9/20
• Thermal Energy
•Created from Random molecular motion
• “Heat” is thermal energy that is
transferred from warmer object to
cooler object
![Page 10: Energy and Cellular Respiration Part 1](https://reader030.fdocuments.in/reader030/viewer/2022021323/577d39111a28ab3a6b99046d/html5/thumbnails/10.jpg)
8/14/2019 Energy and Cellular Respiration Part 1
http://slidepdf.com/reader/full/energy-and-cellular-respiration-part-1 10/20
So exactly what
happens as you go down
the slide?• As you climb up the
slideKinetic E
• When you reach top of
slidepotential E
• As you slide
downdirected kinetic E
• When you hit water and
stopRandom kinetic E
of molecular motion
![Page 11: Energy and Cellular Respiration Part 1](https://reader030.fdocuments.in/reader030/viewer/2022021323/577d39111a28ab3a6b99046d/html5/thumbnails/11.jpg)
8/14/2019 Energy and Cellular Respiration Part 1
http://slidepdf.com/reader/full/energy-and-cellular-respiration-part-1 11/20
• You cannot
retrieve thermal
energy, so youmust get new
source of energy
to climb back up
the slide• What do you do?
![Page 12: Energy and Cellular Respiration Part 1](https://reader030.fdocuments.in/reader030/viewer/2022021323/577d39111a28ab3a6b99046d/html5/thumbnails/12.jpg)
8/14/2019 Energy and Cellular Respiration Part 1
http://slidepdf.com/reader/full/energy-and-cellular-respiration-part-1 12/20
Eat food!• Food is
composed of organic
compounds
• Carbohydrates
• Fats
• Proteins
• All rich in E
• These organiccompounds contain a
form of potential
energy we call
• CHEMICAL ENERGY
![Page 13: Energy and Cellular Respiration Part 1](https://reader030.fdocuments.in/reader030/viewer/2022021323/577d39111a28ab3a6b99046d/html5/thumbnails/13.jpg)
8/14/2019 Energy and Cellular Respiration Part 1
http://slidepdf.com/reader/full/energy-and-cellular-respiration-part-1 13/20
Organic compounds
• Potential to do work is in the
arrangement of atoms in the
molecules
• Amount of potential energy
depends on the structure of themolecules
• When you break a bond, you
release E
•Energy now available for muscles to do work
• Structures of…
• Proteins
•Carbohydrates
• Fats
![Page 14: Energy and Cellular Respiration Part 1](https://reader030.fdocuments.in/reader030/viewer/2022021323/577d39111a28ab3a6b99046d/html5/thumbnails/14.jpg)
8/14/2019 Energy and Cellular Respiration Part 1
http://slidepdf.com/reader/full/energy-and-cellular-respiration-part-1 14/20
![Page 15: Energy and Cellular Respiration Part 1](https://reader030.fdocuments.in/reader030/viewer/2022021323/577d39111a28ab3a6b99046d/html5/thumbnails/15.jpg)
8/14/2019 Energy and Cellular Respiration Part 1
http://slidepdf.com/reader/full/energy-and-cellular-respiration-part-1 15/20
Cells and Cars use
Combustion• Cells • Cars
![Page 16: Energy and Cellular Respiration Part 1](https://reader030.fdocuments.in/reader030/viewer/2022021323/577d39111a28ab3a6b99046d/html5/thumbnails/16.jpg)
8/14/2019 Energy and Cellular Respiration Part 1
http://slidepdf.com/reader/full/energy-and-cellular-respiration-part-1 16/20
![Page 17: Energy and Cellular Respiration Part 1](https://reader030.fdocuments.in/reader030/viewer/2022021323/577d39111a28ab3a6b99046d/html5/thumbnails/17.jpg)
8/14/2019 Energy and Cellular Respiration Part 1
http://slidepdf.com/reader/full/energy-and-cellular-respiration-part-1 17/20
calorie• Amount of energy required to raise
the temperature of 1 g of water 1*C
• Very tiny
• Not practical to measure energy in
food
• Express in kilocalories (kcal), or
Calories, what is on the nutritionlabel
• KHDmdcm
![Page 18: Energy and Cellular Respiration Part 1](https://reader030.fdocuments.in/reader030/viewer/2022021323/577d39111a28ab3a6b99046d/html5/thumbnails/18.jpg)
8/14/2019 Energy and Cellular Respiration Part 1
http://slidepdf.com/reader/full/energy-and-cellular-respiration-part-1 18/20
Burning food…
• Changes chemical energy to
thermal energy (releases heat)
• Measure increase of water temperature and definition of
calorie to find out how much
chemical energy is in food
![Page 19: Energy and Cellular Respiration Part 1](https://reader030.fdocuments.in/reader030/viewer/2022021323/577d39111a28ab3a6b99046d/html5/thumbnails/19.jpg)
8/14/2019 Energy and Cellular Respiration Part 1
http://slidepdf.com/reader/full/energy-and-cellular-respiration-part-1 19/20
Practice problem
• If a peanut is burned and the
temperature of 1 kilogram of
water is raised by 8*C, howmany calories are in the
peanut?
• How many Calories?
![Page 20: Energy and Cellular Respiration Part 1](https://reader030.fdocuments.in/reader030/viewer/2022021323/577d39111a28ab3a6b99046d/html5/thumbnails/20.jpg)
8/14/2019 Energy and Cellular Respiration Part 1
http://slidepdf.com/reader/full/energy-and-cellular-respiration-part-1 20/20
Find the amount of calories and how much
the water temp of 1 g of water was raised…
1 2 3