Biology Chapter 4.2 Photosynthesis. KEY CONCEPT The overall process of photosynthesis produces...
-
Upload
alexander-stanley -
Category
Documents
-
view
222 -
download
0
description
Transcript of Biology Chapter 4.2 Photosynthesis. KEY CONCEPT The overall process of photosynthesis produces...
![Page 1: Biology Chapter 4.2 Photosynthesis. KEY CONCEPT The overall process of photosynthesis produces sugars that store chemical energy.](https://reader036.fdocuments.net/reader036/viewer/2022062317/5a4d1b867f8b9ab0599bca56/html5/thumbnails/1.jpg)
Biology Chapter 4.2
Photosynthesis
![Page 2: Biology Chapter 4.2 Photosynthesis. KEY CONCEPT The overall process of photosynthesis produces sugars that store chemical energy.](https://reader036.fdocuments.net/reader036/viewer/2022062317/5a4d1b867f8b9ab0599bca56/html5/thumbnails/2.jpg)
KEY CONCEPTThe overall process of photosynthesis produces sugars that store chemical energy.
![Page 3: Biology Chapter 4.2 Photosynthesis. KEY CONCEPT The overall process of photosynthesis produces sugars that store chemical energy.](https://reader036.fdocuments.net/reader036/viewer/2022062317/5a4d1b867f8b9ab0599bca56/html5/thumbnails/3.jpg)
Photosynthetic organisms are producers.• Producers make their own
source of chemical energy.• Plants use photosynthesis and
are producers.• Photosynthesis captures energy
from sunlight to make sugars.
![Page 4: Biology Chapter 4.2 Photosynthesis. KEY CONCEPT The overall process of photosynthesis produces sugars that store chemical energy.](https://reader036.fdocuments.net/reader036/viewer/2022062317/5a4d1b867f8b9ab0599bca56/html5/thumbnails/4.jpg)
• Chlorophyll is a molecule that absorbs light energy.
chloroplast
leaf cell
leaf
• In plants, chlorophyll is found in organelles called chloroplasts.
![Page 5: Biology Chapter 4.2 Photosynthesis. KEY CONCEPT The overall process of photosynthesis produces sugars that store chemical energy.](https://reader036.fdocuments.net/reader036/viewer/2022062317/5a4d1b867f8b9ab0599bca56/html5/thumbnails/5.jpg)
Photosynthesis in plants occurs in chloroplasts.
• Photosynthesis takes place in two parts of chloroplasts.– grana (thylakoids)– stroma
chloroplast
stroma
grana (thylakoids)
![Page 6: Biology Chapter 4.2 Photosynthesis. KEY CONCEPT The overall process of photosynthesis produces sugars that store chemical energy.](https://reader036.fdocuments.net/reader036/viewer/2022062317/5a4d1b867f8b9ab0599bca56/html5/thumbnails/6.jpg)
• The light-dependent reactions capture energy from sunlight.– take place in thylakoids– water and sunlight are needed– chlorophyll absorbs energy– energy is transferred along thylakoid membrane then to light-independent
reactions– oxygen is released
![Page 7: Biology Chapter 4.2 Photosynthesis. KEY CONCEPT The overall process of photosynthesis produces sugars that store chemical energy.](https://reader036.fdocuments.net/reader036/viewer/2022062317/5a4d1b867f8b9ab0599bca56/html5/thumbnails/7.jpg)
• The light-independent reactions make sugars.– take place in stroma– needs carbon dioxide from atmosphere– use energy to build a sugar in a cycle of chemical reactions
![Page 8: Biology Chapter 4.2 Photosynthesis. KEY CONCEPT The overall process of photosynthesis produces sugars that store chemical energy.](https://reader036.fdocuments.net/reader036/viewer/2022062317/5a4d1b867f8b9ab0599bca56/html5/thumbnails/8.jpg)
• The equation for the overall process is:6CO2 + 6H2O C6H12O6 + 6O2
C6H12O6
granum (stack of thylakoids)
thylakoid
sunlight
1 six-carbon sugar
6H2O
6CO2
6O2
chloroplast1
2
43
energy
stroma (fluid outside the thylakoids)
![Page 9: Biology Chapter 4.2 Photosynthesis. KEY CONCEPT The overall process of photosynthesis produces sugars that store chemical energy.](https://reader036.fdocuments.net/reader036/viewer/2022062317/5a4d1b867f8b9ab0599bca56/html5/thumbnails/9.jpg)
Photosynthesis (19 min)
• http://player.discoveryeducation.com/index.cfm?guidAssetId=6156A4EE-3DBC-4C44-9677-1413C6AC85C5&blnFromSearch=1&productcode=US
![Page 10: Biology Chapter 4.2 Photosynthesis. KEY CONCEPT The overall process of photosynthesis produces sugars that store chemical energy.](https://reader036.fdocuments.net/reader036/viewer/2022062317/5a4d1b867f8b9ab0599bca56/html5/thumbnails/10.jpg)
Dark Reactions of Photosynthesis
• http://player.discoveryeducation.com/index.cfm?guidAssetId=750578E5-E9F6-40A2-90EA-E97F5D0CBE80&blnFromSearch=1&productcode=US