Pressure Flow Model Animation

Рет қаралды 44,064

3 жыл бұрын

#biologyanimation The pressure-flow hypothesis explains why phloem sap
flows from source to sink, and experiments build a strong
case for pressure flow as the mechanism of translocation
in angiosperms.
1. Loading of sugar into the sieve tube at the source reduces water potential inside the sieve-tube elements. This causes the tube to take up water by osmosis.
2 This uptake of water generates a positive pressure that forces the sap to flow along the tube.
3 The pressure is relieved by the unloading of sugar and the consequent loss of water at the sink.
4 In leaf-to-root translocation, xylem recycles water from sink to source.

Пікірлер: 61

@sumitrajsingh8125 2 жыл бұрын

That was very simple and crisp . Thank you miss 😊

@kashmirified 2 жыл бұрын

Loved the way u explained it 😊

@arpanarao360 2 жыл бұрын

Thanku so much. You simplified the topic.

@tayam6508 4 ай бұрын

Very clear and helpful. Thank you!

@stranger-xu6lh Жыл бұрын

wow thank you very much 🙇🏻‍♀️🙇🏻‍♀️ it helps me a lot❤️

@piyush4420 2 жыл бұрын

Ty for this amazing visualit

@nOtyOuRsHaNii Жыл бұрын

Thanks for solving my problem.....🥰🥰💯🙏.......

@thegreatlio1850 Жыл бұрын

Now a days i am your fan yar and yet i like your voice too its so sweet love you.from pak.

@angelmansi1415 3 жыл бұрын

Really it's a to the point video, anyone can understand it easily, simple explanation of ncert 👍❤

@RethinkBiology 2 жыл бұрын

Glad it helped, please support us by inviting your biology loving friends to subscribe our channel. Thanks 😊

@ramya9071 Жыл бұрын

Thank you and make more such videos thank you

@sumanbhagatbhurawaschokiHR Жыл бұрын

Gjb explain

@Hammad.461 3 ай бұрын

Simple and easy explanation 🫀

@sherrykhan2000 2 жыл бұрын

Ty...

@swaminadhanv3840 2 жыл бұрын

Fantastic one, thank you!!

@RethinkBiology 2 жыл бұрын

Thank you 😊

@RethinkBiology 2 жыл бұрын

Glad it helped, please support us by inviting your biology loving friends to subscribe our channel. Thanks 😊

@swaminadhanv3840 2 жыл бұрын

@@RethinkBiology Sure...!

@GAUTAMSINGH-dz5yt 3 жыл бұрын

Thank you ma'am very useful video

@RethinkBiology 2 жыл бұрын

Thanks a lot, please support us by inviting your biology loving friends to subscribe our channel.

@sridiconstructions8704 Жыл бұрын

Thank you so much mam

@zabiha_ Жыл бұрын

Awesome and superb ma'am .. zabiha zahid student of class 9 AkHSs chapali upper chitral Pakistan

@user-qy3rs7dg1x 5 ай бұрын

شكرآ

@saykar0393 3 жыл бұрын

Wow!

@RethinkBiology 3 жыл бұрын

Thank you😊

@idk-gh5zj 11 ай бұрын

Really helpful ✨

@RethinkBiology 10 ай бұрын

Thank you for your positive comment and feedback! I'm thrilled to hear that you found the video helpful and informative. I appreciate your support and encouragement. 😊

@sowmyashree221 Жыл бұрын

Good😇

@pramod01234 2 жыл бұрын

@badig1521 2 жыл бұрын

👍👍👍

@NavyaReddyJulakanti 5 ай бұрын

Thank you mam

@RethinkBiology 4 ай бұрын

Most welcome 😊

@ibrarahmed-0598 2 жыл бұрын

Goosebumps after this

@RethinkBiology 2 жыл бұрын

Thank you 😊

@gowthamn251 Жыл бұрын

👌👌👊👊

@perumallachaitra-qu9my 7 ай бұрын

❤

@faisalkalair3257 4 ай бұрын

Thanks ❤❤❤ mam

@RethinkBiology 4 ай бұрын

Most welcome 😊

@aneeqabibi Жыл бұрын

sir g A.O.A sir g 1 single standerd RNA me nitrogenous bases kis trah bonding banatee hi apas me ??

@RethinkBiology Жыл бұрын

Each ribonucleotide base consists of a ribose sugar, a phosphate group, and a nitrogenous base. Adjacent ribose nucleotide bases are chemically attached to one another in a chain via chemical bonds called phosphodiester bonds. Unlike DNA, RNA is usually single-stranded. Additionally, RNA contains ribose sugars rather than deoxyribose sugars, which makes RNA more unstable and more prone to degradation. www.nature.com/scitable/definition/rna-45/#:~:text=Each%20ribonucleotide%20base%20consists%20of,RNA%20is%20usually%20single%2Dstranded.

@aneeqabibi Жыл бұрын

@@RethinkBiology sir g iss bat ke smj nh a rahee k jb RNA single strand hi to phr kesy nitrogenous bases apas me link hti hi??

@chitranshmishra Жыл бұрын

2:36 loading of phloem and 3:07 unloading of phloem

@mr.allrounders4786 Жыл бұрын

Sir why can't you make a video on plant total physiology

@RethinkBiology Жыл бұрын

Sure, we will try.

@aneeqabibi Жыл бұрын

movement of sucrose from mesophyl to sieve tube iss ki animation cha ay

@RethinkBiology Жыл бұрын

We will try 🙂

@binod4336 Жыл бұрын

Mam I did not understand how the phloem sap is coming from source to the sink after the transfer of water from xylem to phloem . Plz explain

@drawinggirl9303 11 ай бұрын

Aree in leaf(source) water is less because 90percent lost by transpiration...food is there So the xylem pushes water in upward direction near the source Water and food enters the phloem It helps in easy transport of food Food in unloaded at sink Water is gone to the xylem again

@binod4336 11 ай бұрын

@@drawinggirl9303 okay thank you 👍

@Materuata 11 ай бұрын

What is sap

@RethinkBiology 10 ай бұрын

Sap is the fluid transport system of plants. It consists of two types of sap: xylem sap and phloem sap. Xylem sap carries water and minerals from the roots to the leaves and other parts of the plant. Phloem sap carries sugars and other organic molecules from the leaves to the roots and other parts of the plant. Sap helps plants to grow, maintain their structure, and perform various metabolic processes.

@music_therapy26 3 жыл бұрын

Short and sweet

@RethinkBiology 2 жыл бұрын

Glad it helped, please support us by inviting your biology loving friends to subscribe our channel. Thanks 😊

@marcreihmartinez480 2 жыл бұрын

Reflectiob please

@RethinkBiology 2 жыл бұрын

What?

@yashtomar6225 Жыл бұрын

What actually is the hypothesis? I don't need round round explanation 🙄🙄

@RethinkBiology 10 ай бұрын

The pressure flow hypothesis is a theory that explains how food (sucrose) is transported through the phloem in plants. It states that food moves from a source (where it is produced or stored) to a sink (where it is used or stored) by a pressure gradient created by osmosis. The main steps of the hypothesis are: At the source, sucrose is actively transported into the phloem, creating a high concentration of solutes (low water potential). Water from the nearby xylem moves into the phloem by osmosis, increasing the hydrostatic pressure in the phloem. At the sink, sucrose is actively transported out of the phloem, creating a low concentration of solutes (high water potential). Water from the phloem moves back into the xylem by osmosis, decreasing the hydrostatic pressure in the phloem. The difference in pressure between the source and the sink drives the mass flow of sucrose and water through the phloem.