Light dependent 1. Photons PSII + H2O --> O2 + H+ 2. Photons PSI + H+ + ADP + NADP --> ATP + NADPH (O2 leaves through stomata, NADP takes H+ to dark reaction) (electrons from PSII PSI got excited and pushed into thylakoid membrane, it becomes ETC to make ATP) Light independent: i.e. dark reaction, i.e. Calvin cycle 1. 5C RuBP + CO2 --> 6C (not glucose) 2. 6C + ATP + NADPH --> two 3C 3. 3C +3C --> 6C glucose The rest 3C's bond and rearranged to become 5C RuBP (happens in the stroma) THANKS BEVERLY BIOLOGY. YOU ARE THE BEST
Wow. Thank you so much. So lovely and clear! I’ve watched so many videos about photosynthesis and couldn’t picture it! They were all over the place. God bless you! Thank you Beverly biology 💗
I'm curious to know why sunlight energy apparently isn't absorbed by PS1 (releasing electrons) at the same step as PSII is absorbing sunlight an releasing electrons? Is it in reality releasing electrons simultaneously with PSII? Do you know?
You're helping me pass my bio class!! My teacher never makes any sense, but I can't seem to understand this chapter. Whereas I understand other video's points, it's hard to understand when you have to worry about vocabulary, too. Thank you!!!!!!!
This was awesome but I have some questions. 1)In the light dependent reaction, does the Hydrogen or Oxygen replenish the lost electrons in Photosystem two 2)When the H goes into the ATP synthase where does the ADP come from
Where did protons, neutrons, and electrons come from at the start of time???? We'd need to bring in a theoretical physicist to help with that question.
The electrons have always been there. Remember, every atom of every molecule has protons neutrons and electrons. When the light hits it, it excites the electrons causing them to react which kickstarts the process. Electrons=electricity
I love your videos. I appreciate that you go through every step and take your time explaining them. I never understood the diagram people usually use to show photosynthesis but now I finally understand. Thanks very much. by the way what was the answer to the quiz at the end.
+Jessica Thank you for the compliment. As for the quiz at the end, I do not like to post the answers online because I want my students to solve the problem on their own instead of just looking at the answers I post.
Light dependent
1. Photons PSII + H2O --> O2 + H+
2. Photons PSI + H+ + ADP + NADP --> ATP + NADPH
(O2 leaves through stomata, NADP takes H+ to dark reaction)
(electrons from PSII PSI got excited and pushed into thylakoid membrane, it becomes ETC to make ATP)
Light independent: i.e. dark reaction, i.e. Calvin cycle
1. 5C RuBP + CO2 --> 6C (not glucose)
2. 6C + ATP + NADPH --> two 3C
3. 3C +3C --> 6C glucose
The rest 3C's bond and rearranged to become 5C RuBP
(happens in the stroma)
THANKS BEVERLY BIOLOGY. YOU ARE THE BEST
ddcp101010
the cycle has to turn 6 times to make 1 glucose btw
ddcp101010 Thank you for the kind words... best wishes to you
This is the best lecture and most concise, on photosynthesis I have found on youtube so far, thankyou for this.
The best and the most comprehensive biology lectures on youtube. Thanks a lot for sharing these wonderful lectures Beverly Biology.
Thank you for the kind words... happy to help.
Wow. Thank you so much. So lovely and clear! I’ve watched so many videos about photosynthesis and couldn’t picture it! They were all over the place. God bless you! Thank you Beverly biology 💗
Very descriptive! It is not too complex to understand, but at the same time, is not too simple either. GREAT JOB!!
I'm curious to know why sunlight energy apparently isn't absorbed by PS1 (releasing electrons) at the same step as PSII is absorbing sunlight an releasing electrons? Is it in reality releasing electrons simultaneously with PSII? Do you know?
You're helping me pass my bio class!! My teacher never makes any sense, but I can't seem to understand this chapter. Whereas I understand other video's points, it's hard to understand when you have to worry about vocabulary, too. Thank you!!!!!!!
+TalieRau3 I happy to know that so many others are finding these videos to be helpful. Thanks for the kind words. Best wishes to you.
SAME
Savannah Overbeck my teacher is my best friends mom but she is so boring about this i just blank out every two seconds so yeah this helps a lot
ugh hes not :-;
Great video! Couldn't understand all the other ones! This one broke it down so well 👍🏻
+Kuba Magdon Thank you for the compliment and for watching... best wishes to you
YOU'RE GREAT MAN... YOUR EXPLANATIONS ARE SO GOOD TO UNDERSTAND AT ONCE.. KEEP IT UP DUDE
Thank you. You make a lot more sense than my bio teacher.
Happy I could help... thanks for watching
you're very clear in your explanation.
your speech just perfect not too fast or too slow
thank you
+Randy Nguyen Thank you for the kind words. Best wishes to you.
YOU EXPLAINED IT SO WELL THANK YOU SO MUCH!!!!
you saved my gpa literally, I wish you were my bio prof
High school teachers > college professors. thank you sir!
Fabulous explanation, full of complete information .....😁😂😁✔
You are the best!!!!
i finally found a video that made me understand photosynthesis! Very helpfull! i hope i got the steps in the end in the right order
Persistence pays off.. thanks for watching
The best video i ve seen i m ready for the test .thank you very very much .
+linda l Glad you liked it... this topic is never easy. Keep up the good work.
This is an AMAZING video and it is VERY informative!
Thank you brother💪🏻
Amazing
This was awesome but I have some questions.
1)In the light dependent reaction, does the Hydrogen or Oxygen replenish the lost electrons in Photosystem two
2)When the H goes into the ATP synthase where does the ADP come from
You 're just so good 😊
Thanks so much .
The splitting of water happens inside or outside of the thylakoid? thank youuuuu :)
It helpt me but its very imposibull thank god i learn it♥️💬🌐
Same
Hi hello
Great 👍🏻
Awesome video :) making everything clear!
By the way, are there any video about mitosis in the plants?
Thank you so much. This was really helpful
Great video. Can you please tell me the textbook from which it is sourced?
2008 California McDougal Littel: Biology (picture of a baby crocodile on the cover)
😊 thank you so much, it helped me a lot
omg, very good video
Thank you so much!
Thanks for watching... best wishes to you
thank you
This video helped so much, thank you! But just one question, don't the PGAs turn into G3P first before becoming glucose or regenerating into RuBP?
This PowerPoint does not show every single biochemical step. This is geared towards my honors class of 9th grade students.
Beverly Biology ok just wondering BC in my bio class the teacher never talked about pga but only g3p
This is a great video! What letters does (B) fall between in the quiz btw?
Joder, me han obligado a ver este vídeo por un trabajo de inglés y.... 21 malditos minutos!!!
Hi, just wondering where the electrons came from in the first place. Thanks!
Where did protons, neutrons, and electrons come from at the start of time????
We'd need to bring in a theoretical physicist to help with that question.
Beverly Biology Oh.. ok then
The electrons have always been there. Remember, every atom of every molecule has protons neutrons and electrons. When the light hits it, it excites the electrons causing them to react which kickstarts the process. Electrons=electricity
I love your videos. I appreciate that you go through every step and take your time explaining them. I never understood the diagram people usually use to show photosynthesis but now I finally understand. Thanks very much. by the way what was the answer to the quiz at the end.
+Jessica Thank you for the compliment. As for the quiz at the end, I do not like to post the answers online because I want my students to solve the problem on their own instead of just looking at the answers I post.
thanks for the reply and I completely understand lol.
really well
I thought PGA was turned into G3P and then into RuBP
Please can You give us the correct answer ? I put E, D, A, G B, C F
I did the same.
this is 9th grade level? dang! times have changed!
I know huh??? I remember learning cells and plants/animals in my high school biology days.
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