To be successful today… 1) Pull out ATP Coloring Sheet BYOD Color of the day is Phones are put away in backpacks

Essential Question: How does ATP transfer energy for use by the cell and why can’t the cell use glucose for energy?

Recall… HETEROTRPHS cannot make their own food http://www.newtonswindow.com/problem-solving.htm AUTOTROPHS can make their own food Ex: Green plants, a few kinds of bacteria HETEROTRPHS cannot make their own food Ex: Animals, fungi, most bacteria http://www.seorf.ohiou.edu/~tstork/compass.rose/photosynthesis/chloro_sun_bathing.gif http://www.epa.gov/region5/superfund/ecology/images/fishcartoon.gif

EVERYTHING is connected! SUNLIGHT is the ultimate source of energy for everything on the planet! http://staff.tuhsd.k12.az.us/gfoster/standard/bcycles.htm http://www.angelfire.com/ga4/wavincatlyn/homepage/lking.html

Energy Can change forms: Ability to do work Cannot be created or destroyed Can change forms: - EX: Light energy can be changed into chemical energy

List all the types/forms of energy you can think of ...

Energy is stored in chemical BONDS!!

When you break a chemical bond energy is released.

Energy that cells use is called http://www.newtonswindow.com/problem-solving.htm Energy that cells use is called ATP Image by: Riedell

ATP is a special nucleotide made up of: 3 PHOSPHATE GROUPS ATP = __________________________ Adenosine triphosphate

Energy Stored in Bonds of ATP

Looks just like ATP, except it only has 2 phosphates ATP can change into ADP 2 PHOSPHATE GROUPS ADP = __________________________ Adenosine diphosphate Looks just like ATP, except it only has 2 phosphates

And makes ATP!! To STORE energy, cells add a phosphate on to ADP ATP It’s like recharging the battery !

To release energy, the cell breaks off a phosphate… And makes ADP! This energy is used to power cellular activities

ATP-ADP Cycle Video

WHAT DO CELLS NEED ATP FOR ? ACTIVE TRANSPORT http://www.newtonswindow.com/problem-solving.htm http://www.lionden.com/cell_animations.htm http://academic.brooklyn.cuny.edu/biology/bio4fv/page/cell-movement.html :

WHAT DO CELLS NEED ATP FOR ? Movement, Cell Division Meiosis: http://www.tokyo-med.ac.jp/genet/anm/ Cilia: http://www.sk.lung.ca/content.cfm?edit_realword=hwbreathe http://legacy.owensboro.kctcs.edu/gcaplan/anat/notes/API%20Notes%20H%20Skeletal%20Thoraciac%20Cage.htm http://upload.wikimedia.org/wikipedia/commons/1/1c/Kinesin_walking.gif

WHAT DO CELLS NEED ATP FOR ? Creating new biomolecules Replication: http://www.beyondbooks.com/lif71/4c.asp Transcription:http://www.wappingersschools.org/RCK/staff/teacherhp/johnson/visualvocab/mRNA.gif Translation:

WHAT DO CELLS NEED ATP FOR ? GROWTH and REPAIR http://www.mcwdn.org/Plants/Seeds.html http://www.bcps.org/offices/lis/models/life/images/grow.JPG

ATP is useful BUT . . . http://www.estrellamountain.edu/faculty/farabee/biobk/BioBookCHEM2.html Even though GLUCOSE stores more energy in its bonds than ATP, cells CANNOT use glucose for energy. Glucose must first be converted to ATP

ATP is useful BUT . . . http://www.estrellamountain.edu/faculty/farabee/biobk/BioBookCHEM2.html ATP is good for TRANSFERRING ENERGY, but NOT for storing energy LONG TERM. Cells only keep a small amount ATP around to last a few seconds and recharge it by burning glucose.

Cornell Summary