PowerPoint Presentation

Friday Jan 9-Week 1TOPIC: Organisms obtaining Energy OBJ : 1-3DO NOW:

EXT: DUE DATE: DW: 8.2 BK PG/RDG Qs----------------------------------------------------------------------------------------------------------------

EXIT: Fill in your level of understanding AND Explain how the function of ATP in a cell is like that of a battery in a car.HANDOUTS to PICK-UP:-8.2 Book Pages-8.2 Reading Questions

SEMINAR 2:

BEFORE/AFTER SCHOOL:DW- None-Review Lab-Go over 8.1 Application notes-Start 8.2 Book Pages/Reading Questions/Vocab

What was the role of BTB in our Elodea lab?AGENDAABSENTScience of Life

QUIZ MONDAY!!!1

Todays ObjectivesPREREQUISITES:1- COMPARE/CONTRAST autotrophs and heterotrophs2- REVIEW the carbon cycle8.1 HOW ORGANISMS OBTAIN ENERGY1- SUMMARIZE the two laws of thermodynamics2- DESCRIBE/ EXPLAIN ATP & how it works in the cell 3- COMPARE how processes of cellular energy are related to each otherVocabularyThese should be done by test day! energy thermodynamics metabolism photosynthesis cellular respiration ATP (adenosine triphosphate)- ADP (adenosine diphosphate)-LAB: photosynthesis & respirationPRELAB: IDENTIFY VARIABLES/ CONTROLS:IV-INDEPENDENT VARIABLE:_________________________

DV-DEPENDENT VARIABLE:_________________________

CONTROL: _________________________CONSTANTS:

-____________________________

-____________________________

-____________________________ENVIRONMENT [ plant- dark/light]presence [amt] of CO2 / O2beaker C [ dark environment] & D [light envirnt]# drops of BTBamount of H2Otime [24 hrs]size of elodea [plant]LAB: photosynthesis & respirationCONCLUSION: (1-3 bulleted statements each) 1- EXPLAIN why bromothymol blue was used in this experiment.-identify presence of CO22-EXPLAIN why the bromothymol blue indicator changed color after blowing into the flask -bubbles contained CO2-CO2 is slightly acidic

3- IDENTIFY the purpose of placing the Elodea in Flask A & B.-possibility of observing photosynthesis (presence of O2)4-ANALYZE why differences were observed between the Elodea in the light and the Elodea in the dark.-photosynthesis reaction STARTS with LIGHT ENERGY-no light was present in the darkLAB: photosynthesis & respirationCONCLUSION: (1-3 bulleted statements each) 5-EXPLAIN the process of photosynthesis. -autotrophs CAPTURE light energy-CONVERT light energy to chemical energy-RELEASE O2 as a waste product-STORE chemical energy as glucose6-IDENTIFY how the results demonstrate the requirements necessary for this process to occur.-beaker A [plant/light]: BTB back to blue (more O2 present than CO2)-beaker B [plant/dark]: BTB still green- light energy not captured to start process of photosynthesis.7-PROPOSE possible future applications and adaptations.TRANSFORMATION OF ENERGYCOMPARE the laws about how energy flows. Give EX of each:1st LAW OF THERMODYNAMICS2ND LAW OF THERMODYNAMICSDEFINED

entropy-EXAMPLE-Law of Conservation of Energy-Energy never created or destroyed-Energy is transformed or convertedFood Run-Energy cannot be converted w/o the loss of usable energy-When lost-usually converted into thermal energyMeasure of disorder or unusable energyFood Chains usable energy decreasesTRANSFORMATION OF ENERGYINSERT the terms above to complete the passage:

The group that makes their own food is ______________________________. The organisms in this group are called ____________________. The group that must eat other organisms for food is _______________________.The organisms in this group are called ____________________. Some organisms get their energy from inorganic substances, such as hydrogen sulfide. These organisms are called _________________________.GROUP BAUTOTROPHSGROUP AHETEROTROPHSCHEMOAUTOTROPHSORGANISMS SOURCE OF ENERGYHETEROTROPHS-organisms ingest food to get energy-animalsAUTOTROPHS-organisms make their own food-plants/some bacteria

1-photo-autotrophsconvert light energy from the SUN to chemical energy

2-chemo-autotrophsmake food with chemicals

Black smoker- Atlantic ocean10TRANSFORMATION OF ENERGYSEQUENCE the flow of energy from the SUN to heterotrophs

-PLANTS/AUTOTROPHS [ capture energy from the SUN]

-CONVERT light energy to CHEMICAL ENERGY

-chemical energy STORED [glucosecarbohydrates]

-HETEROTROPHS obtain chemical energy by EATING autotrophs/heterotrophs]TRANSFORMATION OF ENERGYFriday: ___1__/__9___OBJECTIVE#_1-3____ TOPIC:

Organisms obtaining Energy

Daily Work Grade- None

DW GRADE: 2 1 0FRIDAYDO NOWQ: What was the role of BTB in our Elodea Lab?

A: BTB is a pH indicator. Since CO2 is slightly acidic, the BTB changed from blue to green. This was helpful in showing us whether or not CO2 was present. Therefore, we were able to conclude whether photosynthesis had occurred or not.METABOLISMIDENTIFY the type of metabolic pathway(s) described below. STAND UPSIT DOWNcatabolicanabolic-energy released / breaks down particles

catabolicanabolic-energy used/ builds larger molecules from smaller molecules

catabolicanabolic-provides continual flow of energy within an organism

catabolicanabolic-PHOTOSYNTHESIS

catabolicanabolic-RESPIRATIONMETABOLISM-CATABOLIC:

BREAK DOWN PARTICLES / RELEASE ENERGY -CELLULAR RESPIRATION-ANABOLIC:BUILD BIG MOLECULES USE ENERGY FROM CATABOLIC-PHOTOSYNTHESISBIG MOLECULES small moleculessmall molecules BIG MOLECULEScontinual flow ENERGY within organisms

METABOLIC PATHWAYSMETABOLISMCOMPARE/CONTRAST -PHOTOSYNTHESIS & RESPIRATION

RESPIRATION-catabolic-release energy-takes place mitochondria-2 stages-glycolisis / KrebsPHOTOSYNTHESIS-anabolic-light chemical-takes place in chloroplast-2 phases-light dept/Calvin cycle

PG 220 Fig 8.3METABOLISMMETABOLISMIDENTIFY how organisms use energy provided in P & CR

AUTOTROPHS HETEROTROPHS

make own food-photoautotroph-chemoautorophingest food for energy-herbivore-omnivore-carnivore-CO2-H2O-CO2-H2O-O2-C6H1206-O2-C6H1206METABOLISMATP

ADENOSINE TRIPHOSPHATEMost important bio-molecule that provides chemical energyATPBILL NYE ATPCOMPLETE WITH TABLE PARTNERIDENTIFY the importance of ATP-found in ALL organisms-most ABUNDANT energy form-VARIETY of REACTIONS PROVIDE an example of how organisms use ATP-muscles contracting [chemicalmechanical]-cell movement (flagella / cilia)-active transport

ATP: THE UNIT OF CELLULAR ENERGYATP: THE UNIT OF CELLULAR ENERGYDIAGRAM/LABEL the STRUCTURE of ATP-adenine base-ribose sugar-3 phosphate groups

ATP: THE UNIT OF CELLULAR ENERGYATP: THE UNIT OF CELLULAR ENERGYSUMMARIZE:VIDEO CLIP

ATP -provides quick energyADP -bond broken 2-3 phosphate-INTERCHANGE by + / - phosphate groups-ENERGY reactions in cell

ATP

ATP: THE UNIT OF CELLULAR ENERGY21ATPStoring and Releasing cellular energyATP ADPUSES OF ATP--Muscle movementCell movementcilia, flagellaActive transportin cells

22ADPPartially charged battery2 phosphates

ATPFully Charged Battery3 phosphates

VIDEO CLIPVIDEO CLIP- 15min how cells obtain energy

EXITFILL-IN: level of understanding of todays objective

EXIT: Explain how the function of ATP in a cell is like that of a battery in a car.