Alert icon
We're changing our privacy policy. This stuff matters.  Learn more  Dismiss

Photosynthesis and the light-dependent reaction

Loading...

Sign in or sign up now!
22,113
Loading...
Alert icon
Sign in or sign up now!
Alert icon

Uploaded by on Dec 9, 2007

Photosynthesis is the only process that converts light energy into chemical energy. The light dependent reaction, which is the concentration of this video, occurs in the chloroplasts of a leaf. This reaction is initiated by a photon of light, and goes through several steps such as: photolysis of water, excitement of the cytochrome, and pumping of protons from the stroma into the thylakoid space. In result of the previous steps, protons start to accumulate in the thylakoid space making its pH acidic. In fact when the ATP synthase senses the pH of 5, a small tube opens in the complex protein structure, and passive transport of protons from the thylakoid membrane out to the stroma occurs. These protons move through the ATP synthase at a high speed carrying with them an enormous amount of energy, it is this energy that is used to create molecules of ATP through the process of photophosphorylation.

Category:

Education

Tags:

License:

Standard YouTube License

  • likes, 2 dislikes

Link to this comment:

Share to:

Top Comments

  • thanks for the video. I still dont get this crap but thanks for trying:)

  • You need new music

see all

All Comments (22)

Sign In or Sign Up now to post a comment!
  • @chlayala try studying it in 7th grade...

  • ha ha ha, I love it!

  • Funny, I was just gonna ask if they used white mentos. LOL

  • yeah good job with the mentos indeed

  • why its okay

  • class project?

  • nice video! i like how you used the penny for plastoquinone and excellent job with the mentos

  • this was the most helpful video i have watched so far thanks!

Loading...
0 / 00Unsaved Playlist Return to active list
    1. Your queue is empty. Add videos to your queue using this button:
      or sign in to load a different list.
    Loading...Loading...Saving...
    • Clear all videos from this list
    • Learn more