Send the link below via email or IMCopy
Present to your audienceStart remote presentation
- Invited audience members will follow you as you navigate and present
- People invited to a presentation do not need a Prezi account
- This link expires 10 minutes after you close the presentation
- A maximum of 30 users can follow your presentation
- Learn more about this feature in our knowledge base article
Do you really want to delete this prezi?
Neither you, nor the coeditors you shared it with will be able to recover it again.
Make your likes visible on Facebook?
Connect your Facebook account to Prezi and let your likes appear on your timeline.
You can change this under Settings & Account at any time.
How do different colored lights affect photosynthesis?
Transcript of How do different colored lights affect photosynthesis?
lights affect photosynthesis?
• The colors humans can see depends on the reflection or absorption of visible light by pigments. When certain wavelengths are reflected, color is produced.
• In chloroplasts, the main pigment present is chlorophyll a.
• There are other pigments present in chloroplasts known as accessory pigments, such as chlorophyll b and carotenoids.
• These different pigments absorb different wavelengths due to structural differences.
Light is a form of energy.
Photons are particles of light energy that travel in a wave-like motion.
Different forms of light have different wavelengths.
The electromagnetic spectrum depicts the different forms of light, as well as the wavelengths of these forms.
The part of the spectrum that humans can see is known as visible light.
Visible light participates in photosynthesis.
1) Pigment absorbs light
2) An electron becomes excited
3) The electron rapidly returns to ground state
What Is Happening?
• In the light reactions of photosynthesis, photosystems embedded in the thylakoid membrane contain pigments that absorb photons.
Connection to Photosynthesis
1) Pigments absorb photons and transfer the energy to special chlorophyll molecules within the reaction center of a photosystem
2) An electron of the chlorophyll molecules becomes excited and a primary electron acceptor receives the electron
3) The electron travels down the electron transport chain
Rate of Photosynthesis Under Different Wavelengths
The rate of photosynthesis is affected by the different wavelengths of light a plant is exposed to because different pigments in chloroplasts absorb different wavelengths for use in photosynthesis.
Nicole Rossi and Emily Wang
AP Biology 3* & 7*