3 Which of the following is a product of photosynthesis? WaterGlucoseCarbon DioxideSunlight
4 Oxygen and carbon dioxide Water and carbon dioxide In addition to sunlight, what are the other reactants for the process of photosynthesis?Water and oxygenWater and glucoseOxygen and carbon dioxideWater and carbon dioxide
5 Pigments of Photosynthesis Pigments are molecules that absorb specific wavelengths (energies) of light and reflect all others.Chlorophyll is the main pigment in charge of capturing the energy from sunlight.
6 Why do plants look green? THEY RELFECT GREEN LIGHT!!! Chlorophyll a absorbs …………….. light best.Chlorophyll b absorbs ……………. light best.Why do plants look green?THEY RELFECT GREEN LIGHT!!!
8 Chlorophyll is a pigment in the chloroplast that stores and releases energyabsorbs sunlightCarries high energy electronsMakes glucose
9 Chloroplasts do not contain which of the following structures? MitochondriaThylakoidsStromaChlorophyll
10 Predation Metabolism Cell Respiration Photosynthesis What is the process in which autotrophs trap the energy from the sun and store this energy in molecules such as glucose.PredationMetabolismCell RespirationPhotosynthesis
11 1.Write down 3 observations of the diagram below. 2. Share with a partner.3. Share with the class! Discuss!!H2O
12 Remember ATP?? Compound that cells use to store and release energy ATP Adenosine triphosphate3 phosphate groupsADPAdenosine diphosphate2 phosphate groupsCompound that cells use to store and release energy
14 Electron Carrier Molecule Electron Carrier MoleculesCompound that can accept a pair of high energy electrons and transfer them, along with most of their energy to another moleculeOne way the sunlight can be trapped in a chemical form and use it to build glucose for the plant cellExample:NADP+ = accepts and holds 2 high energy electrons along with a hydrogen ion (H+)When NADP+ accepts 2 electrons and a H+ it becomes NADPH
15 Photosynthesis: Step 1 – Light-Dependent Reaction INSunlightWaterADPNADP+OUTOxygenATPNADPHTakes place in Thylakoids.Chlorophyll absorbs light energy from the sun.Water is then split into hydrogen (H) and oxygen (O).The oxygen is released to the atmosphere.Produces NADPH and ATP for the Calvin Cycle (step 2)!H2O
16 Photosynthesis: Step 2 – Light-Independent Reaction OUTCarbon Dioxide ATPGlucoseNADP+NADPHADPTakes place in Stroma.Also called the Calvin Cycle or Dark Reactions.CO2 (carbon dioxide) combines with hydrogen (H) to form C6H12O6 (glucose).The NADPH made in the light-dependent reactions provides the Hydrogen for the glucoseThe ATP made in light-dependent reactions provides the energy for the Calvin Cycle to occur.
17 What affects the rate of photosynthesis? Amount of :- sunlight- CO2- H2O- temperatureAll the reactions of photosynthesis are controlled by enzymes. Temperatures above or below the optimum temperature will slow down the chemical reactions.
19 Energy from the sun is collected during the: Light-independent reactionsLight-dependent reactionsThylakoid reactionsKrebs Cycle
20 Glucose is created during this step of photosynthesis. Light-independent reactionLight-dependent reactionThylakoid reactionsKrebs Cycle
21 Concentration of oxygen Concentration of carbon dioxide Which of the following would not directly impact the growth of a plant?Spectrum of lightConcentration of oxygenConcentration of carbon dioxideAvailability of waterTemperature
22 NADPH Sugars Hydrogen Ions ATP Which of the following is NOT produced in the light-dependent reactions?NADPHSugarsHydrogen IonsATP