Photosynthesis Light reaction, Calvin cycle, Electron Transport 3D Animation

Published by Darron Toy on



in order for plants to grow they need inputs of carbon dioxide water and energy the chemical process by which plants use these resources to manufacture glucose the building blocks of plants is called photosynthesis in the process oxygen gas is produced as a by-product the energy for photosynthesis originates in the Sun and arrives at the earth as sunlight this light has both a wave and a particle nature the particles or photons are the smallest units of light photons oscillate along a path which is measured as wavelengths the light emitted from the Sun contains photons in a wide spectrum of wavelengths called the electromagnetic spectrum photosynthetic organisms use only a small portion of the electromagnetic spectrum called visible light photosynthetic organisms contain pigments that facilitate the capture of wavelengths of light in the visible light range the color of the pigment comes from the wavelengths of light reflected plants appear green because they reflect yellow and green wavelengths of light red and blue wavelengths of light are absorbed by these pigments and provide the energy that is used for photosynthesis within eukaryotic photosynthetic organisms also known as photo autotrophs the chemical reactions of photosynthesis occur within plant cells in specialized structures known as chloroplasts photosynthesis consists of two sets of reactions the light dependent reactions and the calvin cycle within the chloroplast are small discs like structures called thylakoids which are surrounded by a fluid-filled space called the stroma the reactions that synthesize glucose the Calvin cycle occur in the stroma the light-dependent reactions occur in the thylakoid it is here that conversion of light energy to chemical energy is initiated in most photosynthetic organisms thylakoids contain pairs of photosystems called photosystem 1 and photosystem 2 that work in tandem to produce the energy that will later be used in the stroma to manufacture sugars the photosystems of the thylakoid consists of a network of accessory pigment molecules and chlorophyll the molecules that absorb the photons of light within the pigment molecules the absorbed light energy excites electrons to a higher state photosystems will channel the excitation energy gathered by the pigment molecules to a reaction center chlorophyll molecule which will then pass the electrons to a series of proteins located on the thylakoid membrane photons of light strike photosystems one and two simultaneously we will examine what happens with the photons striking photosystem ii first the energized electrons are passed from the reaction center of photosystem ii to an electron transport chain the electrons lost by photosystem ii are replaced by a process called photolysis which involves the oxidation of a water molecule producing free electrons and oxygen gas while this oxygen gas is a byproduct of photosynthesis it is an important input to the cellular respiration pathways as electrons pass through the electron transport chain the energy from the electron is used to pump hydrogen ions from the stroma to the thylakoid creating a concentration gradient this gradient powers a protein called ATP synthase which phosphorylates adp to form ATP the low energy electrons leaving photosystem 2 are shuttled to photosystem one within photosystem one low energy electrons are re-energized and are passed through an electron transport chain where they are used to reduce the electron carrier nadp+ to nadph you when the chloroplast is receiving a steady supply of photons NADPH and ATP molecules are rapidly being provided to the metabolic pathways in the stroma therefore the ATP and NADPH formed during the light dependent reactions are used in the stroma to fuel the Calvin cycle reactions the calvin cycle consists of a series of reactions that reduce carbon dioxide to produce the carbohydrate glyceraldehyde 3-phosphate the cycle consists of three steps the first of which is carbon fixation in this step carbon dioxide is attached to rib ulos one five bisphosphate resulting in a six carbon molecule that splits into two three carbon molecules the second step is a sequence of reactions using electrons from NADPH and some of the ATP to reduce carbon dioxide in the final step rib ulos 1-5 bisphosphate is regenerated for every three turns of the cycle five molecules of glyceraldehyde 3-phosphate are used to reform three molecules of rib ulos 1-5 bisphosphate the remaining glyceraldehyde 3-phosphate is then used to make glucose fatty acids or glycerol it takes two molecules of glyceraldehyde 3-phosphate to make one molecule of glucose phosphate thus the Calvin cycle has to run six times to produce one molecule of glucose these molecules can remove their phosphate and add fructose to form sucrose the molecule plants used to transport carbohydrates throughout their system glucose phosphate is also the starting molecule for the synthesis of starch and cellulose plants produce sugars to use as storage molecules and structural components for their own benefit by utilizing the energy of the Sun along with inputs of water and carbon dioxide plants act as glucose factories photosynthetic organisms are the primary producers of glucose on the planet they also produce oxygen gas as a by-product and thus serve as the foundation of life providing food and oxygen for the complex food webs on both land and in the oceans

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43 Comments

Jewel Alkitbi · May 14, 2019 at 4:16 pm

In case someone want to print it ……. or (anything) (🤷‍♂️❤)

In order for plants to grow, they need inputs of carbon dioxide, water, and energy. The chemical process by which plants used these resources to manufacture glucose, the building blocks of plants is called photosynthesis . In the process oxygen gas is produced as a byproduct. The energy of photosynthesis originates in the sun, and arrives at the earth as sun light. This light has both a wave and a partial nature. The partials or photons are the smallest units of light. Photons isolate along a path which is measured as wave’s length. The light emitted from the sun contains photons in a wide spectrum of wave length called the electromagnetic spectrum. Photosynthetic organisms use only small portion of the electromagnetic spectrum called visible light. Photosynthetic organisms contain pigments. The facilitates the capture of wave length of light of light in visible light range. The color of the pigments comes from the wavelength’s light reflected. Plant appear green because they reflect yellow and green wavelength of light. Red and blue wavelength of light are absorbed by these pigments and provide the energy that is used for photosynthesis. Within eukaryotic photosynthetic organisms, also known as phototrophs, the chemical reaction of photosynthesis occurs within plants cells in specialized structure known as chloroplast. Photosynthesis consist of two sets of reactions. The light-dependent reactions and the Calvin cycle (light-independent). Within a chloroplast are small disk-like structure called thylakoids, which are surrounded by fluid-filled space called stroma. The reaction that synthesize glucose, the Calvin cycle occur in the stroma. The light-dependent reactions occur in the thylakoid. It is here that conversion of light energy to chemical energy is initiated. In most photosynthetic organism’s thylakoid contain pairs of photosystems called photosystem1 and photosystem2 that work in tandem to produce the energy that will later be used in stroma to manufactures sugars. The photosystems of the thylakoid consist of a network of accessory pigment molecules, and chlorophyll. The molecules that absorb the photons of light. Within the pigment molecules the absorbed light energy excites electrons to a higher stage. Photosystems will channel the excitation energy gathered by the pigment’s molecules to a reactions center chlorophyll molecule which will then pass electrons to a series of proteins located on the thylakoid membrane. photons of light strike photosystem1 and photosystem2 simultaneously. We will examine what happens with the photons striking photosystem2 first. The energized electrons are passed from the reaction center of photosystem2 to an electron transport chain. The electron lost by photosystem2 are replaced by a process called photolysis which involves the oxidation of water molecule producing free electrons and oxygen gas. While this oxygen gas is byproduct of photosynthesis its an important input to the cellular respiration pathways. As electrons pass through the electros transport chain the energy from the electron is used to pump hydrogen ions from the stroma to the thylakoid creating a concentration gradient. This gradient power a protein called ATP synthase which phosphorylate an ADP to form ATP. The low energy electrons leaving photosystem2 are shuttled to photosystem1. within photosysterm1 low energy electrons are reenergized and are passed through electron transport chain where they are lose to produce electron carrier ADP+ to NADPH. When the chloroplast

Is reserving a steady supply of photons, NADPH and ATP molecules are rapidly been provided to metabolic pathways in the stroma. Therefore, the ATP and NADPH formed during the light dependent reaction are used in the stroma to fuel the Calvin cycle reaction. The Calvin cycle consist of a series of reaction that reduce carbon dioxide to produce the carbohydrate glyseraldehyde-3-phosphate. The cycle consists of three steps the first of which Is carbon fixation. In this step carbon dioxide is attached to ribulose 1,5 bisphosphate resulting in six carbon molecules that splits into 2 three carbon molecules. The second step is a sequence of reaction using electrons from NADPH and some of the ATP to reduce carbon dioxide. In the final step ribulose 1,5 bisphosphate is regenerated. For every three turns of the cycle, five molecules of glyceraldehyde-3 phosphate are used to re-form three molecules of ribulose 1,5 bisphosphate. The remaining glyceraldehyde-3 phosphate is then used to made glucose, fatty acids or glycerol. It makes two molecules of glyceraldehyde-3 phosphate to make one molecule of glucose phosphate. Thus, the Calvin cycle have to runs six times to produce one molecule of glucose. These molecules can remove their phosphate and add fructose to form sucrose, the molecule plant used to transport carbohydrate through out their system. Glucose phosphate is also the starting molecule for the synthesis of starch and cellulose. Plants produce sugars to use as storage molecules and structural components for their own benefit. By utilizing the energy of the sun along with inputs of water and carbon dioxide, plants act as glucose factories. Photosynthetic organisms are the primary producer of glucose on the planet. They also produce oxygen gas as a byproduct, and thus serve as the foundation of life, providing food , and oxygen for the complex food webs on both land and in the oceans.

Alessandro Morales Munoz · May 14, 2019 at 4:16 pm

anyone wanna suck toes with me?

Stegosaurus Studios · May 14, 2019 at 4:16 pm

why is it that the creator of the video loved every comment?

Emrlem258 Alvarado · May 14, 2019 at 4:16 pm

you mum is gay

Alessandro Morales Munoz · May 14, 2019 at 4:16 pm

UR ALL A PIECE OF DOODOO

Alessandro Morales Munoz · May 14, 2019 at 4:16 pm

am i the only preschooler here?

Robin Singh · May 14, 2019 at 4:16 pm

HELLO NEET ASPIRANTS

right in front of my salad · May 14, 2019 at 4:16 pm

This video was so helpful that I logged in just for give it a thumbs up

Bazeelah khan · May 14, 2019 at 4:16 pm

This is worth a thumbs up guys!

Ankit Mahapatra · May 14, 2019 at 4:16 pm

Really awesome

Kinjal Mistry · May 14, 2019 at 4:16 pm

Thanks for the video❤

Meena Meenu · May 14, 2019 at 4:16 pm

Super mam please lesson 16 par bhi video dalna

Lucifer S · May 14, 2019 at 4:16 pm

Thank you so much.. U don't know how much you helped me with this video

Dũng Ngô Tấn · May 14, 2019 at 4:16 pm

Thank you for your great video. It helps a lots!

Ahmed Sufiyan · May 14, 2019 at 4:16 pm

You saved me to spend 3 hour thank you superwomen

Leo Clement · May 14, 2019 at 4:16 pm

There are something wrong at 3:53 it should be from thylakoid to stroma (idk whether I correct or not)

Virajsinh Rathod · May 14, 2019 at 4:16 pm

Nice animation. we can understand it easily

Radhe Shaym · May 14, 2019 at 4:16 pm

Ni

Dark Night · May 14, 2019 at 4:16 pm

Doubt :ADP is reduced to form ATP. So how can H+ provide electrons for reduction?

ವಿಶಾಲ ಕುಮಾರ · May 14, 2019 at 4:16 pm

Nice explanation

Kyla King · May 14, 2019 at 4:16 pm

THANK YOU

makka saikumar · May 14, 2019 at 4:16 pm

👏

Moretel1 · May 14, 2019 at 4:16 pm

wont heart this coment 😀

Kanca Tani Magelang · May 14, 2019 at 4:16 pm

I'm farmer from and just want to know about proses of fotosintesis

Gouri shankar · May 14, 2019 at 4:16 pm

Loved it😍😍

Elena WD · May 14, 2019 at 4:16 pm

Bless this video, it was amazing. I thought I would never live long enough to understand photosynthesis/calvin cycle but here I am and it's thanks to you.

Jagannath Swain · May 14, 2019 at 4:16 pm

NYC ONE REALLY

Indiatma ayudatami · May 14, 2019 at 4:16 pm

whattis aplication ?

Rahim Khan · May 14, 2019 at 4:16 pm

thnxs mam

Roudah Alfalasi · May 14, 2019 at 4:16 pm

very nice!

harshit kamani · May 14, 2019 at 4:16 pm

thank you for this video cleared all basic concepts

بنت التغلبي · May 14, 2019 at 4:16 pm

I am from Iraq 😍
The way that you speak is make the subject clearly and easy
Thank you very much 💚

shaik mahaboob subhani · May 14, 2019 at 4:16 pm

Very nice it is the perfectly explained video on youtube

UNknown_CuRiOuS · May 14, 2019 at 4:16 pm

SubahanAllah

Joseph Baumgardner · May 14, 2019 at 4:16 pm

She really knows her plants

Woof woof Dawg! · May 14, 2019 at 4:16 pm

Lol i live in the philippines
Our teacher in grade 5 showed us this presentation
And me watching it
Just a single word i cant even understand the things she said

Muhd Nur Hilmi Bin Hermanto · May 14, 2019 at 4:16 pm

Very clear explanation 🥰🥰🥰

FASCINATING SCIENCE · May 14, 2019 at 4:16 pm

Great damnit greatt

Maxim Sarian · May 14, 2019 at 4:16 pm

holy balls

Rahat Sheikh · May 14, 2019 at 4:16 pm

This is my fav video of photosynthesis.
Awesome guys..
U beautifully summarised this topic

Disha Tomar · May 14, 2019 at 4:16 pm

https://youtu.be/v4Vs7upSxgQ checkout this link on photosynthesis

Basit Bhat · May 14, 2019 at 4:16 pm

plz mam upload the vidoe of transpotation

Basit Bhat · May 14, 2019 at 4:16 pm

good vidoe

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