Photosynthesis - Mt. San Antonio College 1/Lecture...Photosynthesis Process that transforms simple...
Transcript of Photosynthesis - Mt. San Antonio College 1/Lecture...Photosynthesis Process that transforms simple...
![Page 1: Photosynthesis - Mt. San Antonio College 1/Lecture...Photosynthesis Process that transforms simple molecules (CO 2) into more complex molecules (carbs) using H 2O, minerals & sunlight](https://reader035.fdocuments.in/reader035/viewer/2022070203/60ef8b7cc1fd3a16d935c817/html5/thumbnails/1.jpg)
Photosynthesis
![Page 2: Photosynthesis - Mt. San Antonio College 1/Lecture...Photosynthesis Process that transforms simple molecules (CO 2) into more complex molecules (carbs) using H 2O, minerals & sunlight](https://reader035.fdocuments.in/reader035/viewer/2022070203/60ef8b7cc1fd3a16d935c817/html5/thumbnails/2.jpg)
Autotrophs vs. Heterotrophs Autotrophs “self-feeders” – make own food from inorganic nutrients
![Page 3: Photosynthesis - Mt. San Antonio College 1/Lecture...Photosynthesis Process that transforms simple molecules (CO 2) into more complex molecules (carbs) using H 2O, minerals & sunlight](https://reader035.fdocuments.in/reader035/viewer/2022070203/60ef8b7cc1fd3a16d935c817/html5/thumbnails/3.jpg)
Autotrophs vs. Heterotrophs
Heterotrophs “other-feeders” – cannot make food from inorganic nutrients
![Page 4: Photosynthesis - Mt. San Antonio College 1/Lecture...Photosynthesis Process that transforms simple molecules (CO 2) into more complex molecules (carbs) using H 2O, minerals & sunlight](https://reader035.fdocuments.in/reader035/viewer/2022070203/60ef8b7cc1fd3a16d935c817/html5/thumbnails/4.jpg)
How Cells Gain Energy From Food
![Page 5: Photosynthesis - Mt. San Antonio College 1/Lecture...Photosynthesis Process that transforms simple molecules (CO 2) into more complex molecules (carbs) using H 2O, minerals & sunlight](https://reader035.fdocuments.in/reader035/viewer/2022070203/60ef8b7cc1fd3a16d935c817/html5/thumbnails/5.jpg)
Animal & Plant Cells
![Page 6: Photosynthesis - Mt. San Antonio College 1/Lecture...Photosynthesis Process that transforms simple molecules (CO 2) into more complex molecules (carbs) using H 2O, minerals & sunlight](https://reader035.fdocuments.in/reader035/viewer/2022070203/60ef8b7cc1fd3a16d935c817/html5/thumbnails/6.jpg)
The Importance of PhotosynthesisOnly three plants stand between humanity and starvation.
![Page 7: Photosynthesis - Mt. San Antonio College 1/Lecture...Photosynthesis Process that transforms simple molecules (CO 2) into more complex molecules (carbs) using H 2O, minerals & sunlight](https://reader035.fdocuments.in/reader035/viewer/2022070203/60ef8b7cc1fd3a16d935c817/html5/thumbnails/7.jpg)
Photosynthesis
Process that transforms simple molecules (CO2) into more complex molecules (carbs) using H2O, minerals & sunlight
Watch Amoeba Sisters Photosynthesis and the Teeny Tiny Pigment Pancakes
![Page 8: Photosynthesis - Mt. San Antonio College 1/Lecture...Photosynthesis Process that transforms simple molecules (CO 2) into more complex molecules (carbs) using H 2O, minerals & sunlight](https://reader035.fdocuments.in/reader035/viewer/2022070203/60ef8b7cc1fd3a16d935c817/html5/thumbnails/8.jpg)
Photosynthesis
CO2 and H2O are the end products of what process?
Where did the hydrogens (electrons) in water go?
How is energy being transformed?
What is the fate of glucose?
![Page 9: Photosynthesis - Mt. San Antonio College 1/Lecture...Photosynthesis Process that transforms simple molecules (CO 2) into more complex molecules (carbs) using H 2O, minerals & sunlight](https://reader035.fdocuments.in/reader035/viewer/2022070203/60ef8b7cc1fd3a16d935c817/html5/thumbnails/9.jpg)
What do plants need in order to photosynthesize?
![Page 10: Photosynthesis - Mt. San Antonio College 1/Lecture...Photosynthesis Process that transforms simple molecules (CO 2) into more complex molecules (carbs) using H 2O, minerals & sunlight](https://reader035.fdocuments.in/reader035/viewer/2022070203/60ef8b7cc1fd3a16d935c817/html5/thumbnails/10.jpg)
Photosynthesis is driven by visible light
![Page 11: Photosynthesis - Mt. San Antonio College 1/Lecture...Photosynthesis Process that transforms simple molecules (CO 2) into more complex molecules (carbs) using H 2O, minerals & sunlight](https://reader035.fdocuments.in/reader035/viewer/2022070203/60ef8b7cc1fd3a16d935c817/html5/thumbnails/11.jpg)
What colors are absorbed?
What color is reflected?
Why are plants green?
![Page 12: Photosynthesis - Mt. San Antonio College 1/Lecture...Photosynthesis Process that transforms simple molecules (CO 2) into more complex molecules (carbs) using H 2O, minerals & sunlight](https://reader035.fdocuments.in/reader035/viewer/2022070203/60ef8b7cc1fd3a16d935c817/html5/thumbnails/12.jpg)
![Page 13: Photosynthesis - Mt. San Antonio College 1/Lecture...Photosynthesis Process that transforms simple molecules (CO 2) into more complex molecules (carbs) using H 2O, minerals & sunlight](https://reader035.fdocuments.in/reader035/viewer/2022070203/60ef8b7cc1fd3a16d935c817/html5/thumbnails/13.jpg)
Chloroplasts – where photosynthesis occurs
Contain pigments that absorb light
![Page 14: Photosynthesis - Mt. San Antonio College 1/Lecture...Photosynthesis Process that transforms simple molecules (CO 2) into more complex molecules (carbs) using H 2O, minerals & sunlight](https://reader035.fdocuments.in/reader035/viewer/2022070203/60ef8b7cc1fd3a16d935c817/html5/thumbnails/14.jpg)
Chloroplasts – where photosynthesis occurs
Thylakoids –inner network of membranes
Stroma – liquid material inside chloroplast
![Page 15: Photosynthesis - Mt. San Antonio College 1/Lecture...Photosynthesis Process that transforms simple molecules (CO 2) into more complex molecules (carbs) using H 2O, minerals & sunlight](https://reader035.fdocuments.in/reader035/viewer/2022070203/60ef8b7cc1fd3a16d935c817/html5/thumbnails/15.jpg)
What part of a plant contains the most chloroplasts?
Leaves!
![Page 16: Photosynthesis - Mt. San Antonio College 1/Lecture...Photosynthesis Process that transforms simple molecules (CO 2) into more complex molecules (carbs) using H 2O, minerals & sunlight](https://reader035.fdocuments.in/reader035/viewer/2022070203/60ef8b7cc1fd3a16d935c817/html5/thumbnails/16.jpg)
LeafStomata – pores on leaf that let CO2 in & oxygen and water vapor out
Where are stomata located? On the top or underside of the leaf? Why?
![Page 17: Photosynthesis - Mt. San Antonio College 1/Lecture...Photosynthesis Process that transforms simple molecules (CO 2) into more complex molecules (carbs) using H 2O, minerals & sunlight](https://reader035.fdocuments.in/reader035/viewer/2022070203/60ef8b7cc1fd3a16d935c817/html5/thumbnails/17.jpg)
2 Stages of Photosynthesis
![Page 18: Photosynthesis - Mt. San Antonio College 1/Lecture...Photosynthesis Process that transforms simple molecules (CO 2) into more complex molecules (carbs) using H 2O, minerals & sunlight](https://reader035.fdocuments.in/reader035/viewer/2022070203/60ef8b7cc1fd3a16d935c817/html5/thumbnails/18.jpg)
Light Reactions
Where does this step occur in a chloroplast?
INPUTS?
OUTPUTS?
![Page 19: Photosynthesis - Mt. San Antonio College 1/Lecture...Photosynthesis Process that transforms simple molecules (CO 2) into more complex molecules (carbs) using H 2O, minerals & sunlight](https://reader035.fdocuments.in/reader035/viewer/2022070203/60ef8b7cc1fd3a16d935c817/html5/thumbnails/19.jpg)
H2O + light energy O2 + NADPH + ATP
Solar energy to chemical energy!
![Page 20: Photosynthesis - Mt. San Antonio College 1/Lecture...Photosynthesis Process that transforms simple molecules (CO 2) into more complex molecules (carbs) using H 2O, minerals & sunlight](https://reader035.fdocuments.in/reader035/viewer/2022070203/60ef8b7cc1fd3a16d935c817/html5/thumbnails/20.jpg)
Calvin Cycle
Where does this step occur in a chloroplast?
INPUTS?
OUTPUTS?
Does this step need light?
![Page 21: Photosynthesis - Mt. San Antonio College 1/Lecture...Photosynthesis Process that transforms simple molecules (CO 2) into more complex molecules (carbs) using H 2O, minerals & sunlight](https://reader035.fdocuments.in/reader035/viewer/2022070203/60ef8b7cc1fd3a16d935c817/html5/thumbnails/21.jpg)
NADPH + ATP + CO2 glucose
What happens to glucose now?
![Page 22: Photosynthesis - Mt. San Antonio College 1/Lecture...Photosynthesis Process that transforms simple molecules (CO 2) into more complex molecules (carbs) using H 2O, minerals & sunlight](https://reader035.fdocuments.in/reader035/viewer/2022070203/60ef8b7cc1fd3a16d935c817/html5/thumbnails/22.jpg)
Cellular resp.
Starch
Cellulose
Fate of Glucose?
![Page 23: Photosynthesis - Mt. San Antonio College 1/Lecture...Photosynthesis Process that transforms simple molecules (CO 2) into more complex molecules (carbs) using H 2O, minerals & sunlight](https://reader035.fdocuments.in/reader035/viewer/2022070203/60ef8b7cc1fd3a16d935c817/html5/thumbnails/23.jpg)
Photosynthesis produces our planet’s oxygen as well as 155 billion tons of biomass each year (about 25 tons for every person on earth)!
View this Bioflix animation on Photosynthesis
![Page 24: Photosynthesis - Mt. San Antonio College 1/Lecture...Photosynthesis Process that transforms simple molecules (CO 2) into more complex molecules (carbs) using H 2O, minerals & sunlight](https://reader035.fdocuments.in/reader035/viewer/2022070203/60ef8b7cc1fd3a16d935c817/html5/thumbnails/24.jpg)
Variations of Photosynthesis (C3, C4, and CAM) in Different Climates
Plants must open their stomata in order to take in _____________ for photosynthesis.
When plants do this, _____________ escapes.
If a plant lives in a hot, dry environment, it must conserve its water by_______________________.
So how will it take in carbon dioxide?
![Page 25: Photosynthesis - Mt. San Antonio College 1/Lecture...Photosynthesis Process that transforms simple molecules (CO 2) into more complex molecules (carbs) using H 2O, minerals & sunlight](https://reader035.fdocuments.in/reader035/viewer/2022070203/60ef8b7cc1fd3a16d935c817/html5/thumbnails/25.jpg)
Variations of Photosynthesis (C3, C4, and CAM) in Different Climates
Visit the website http://wc.pima.edu/~bfiero/tucsonecology/plants/plants_photosynthesis.htm
![Page 26: Photosynthesis - Mt. San Antonio College 1/Lecture...Photosynthesis Process that transforms simple molecules (CO 2) into more complex molecules (carbs) using H 2O, minerals & sunlight](https://reader035.fdocuments.in/reader035/viewer/2022070203/60ef8b7cc1fd3a16d935c817/html5/thumbnails/26.jpg)
Using Photosynthesis to Fight Climate Change?
http://instruction2.mtsac.edu/jkido/Biology%201/Lec%20Handouts%20&%20Articles/Exam%202/The%20Ocean's%20Invisible%20Forest.pdf
![Page 27: Photosynthesis - Mt. San Antonio College 1/Lecture...Photosynthesis Process that transforms simple molecules (CO 2) into more complex molecules (carbs) using H 2O, minerals & sunlight](https://reader035.fdocuments.in/reader035/viewer/2022070203/60ef8b7cc1fd3a16d935c817/html5/thumbnails/27.jpg)
Watch the video “Capturing Carbon”(After clicking on the “play” button, scroll forward to time stamp 27:53 in order to watch this video)
An 8th-grader's science project prompts her scientist dad to develop a new way to pull excess CO2 out of the atmosphere.
![Page 28: Photosynthesis - Mt. San Antonio College 1/Lecture...Photosynthesis Process that transforms simple molecules (CO 2) into more complex molecules (carbs) using H 2O, minerals & sunlight](https://reader035.fdocuments.in/reader035/viewer/2022070203/60ef8b7cc1fd3a16d935c817/html5/thumbnails/28.jpg)
Watch the video “Algae Fuel”
In the search for alternatives to gasoline, are algae the answer?
![Page 29: Photosynthesis - Mt. San Antonio College 1/Lecture...Photosynthesis Process that transforms simple molecules (CO 2) into more complex molecules (carbs) using H 2O, minerals & sunlight](https://reader035.fdocuments.in/reader035/viewer/2022070203/60ef8b7cc1fd3a16d935c817/html5/thumbnails/29.jpg)
How is Climate Change Affecting Life?
https://www.arborday.org/media/zones.cfm
![Page 30: Photosynthesis - Mt. San Antonio College 1/Lecture...Photosynthesis Process that transforms simple molecules (CO 2) into more complex molecules (carbs) using H 2O, minerals & sunlight](https://reader035.fdocuments.in/reader035/viewer/2022070203/60ef8b7cc1fd3a16d935c817/html5/thumbnails/30.jpg)
Read the online article “Spring Forward”
![Page 31: Photosynthesis - Mt. San Antonio College 1/Lecture...Photosynthesis Process that transforms simple molecules (CO 2) into more complex molecules (carbs) using H 2O, minerals & sunlight](https://reader035.fdocuments.in/reader035/viewer/2022070203/60ef8b7cc1fd3a16d935c817/html5/thumbnails/31.jpg)
The Big Picture: Energy flow in living things