Gustation - structure and function | Processing the Environment | MCAT

Gustation - structure and function | Processing the Environment | MCAT | Khan Academy

Рет қаралды 219,801

10 жыл бұрын

Created by Ronald Sahyouni.
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Пікірлер: 48

@soniagarcia6358 6 жыл бұрын

"and the bitter cells synapse at the bitter part of the cortex because, you know, its very mad at the world", lmbo, didn't anyone else catch this?!!!

@leif1075 3 жыл бұрын

I did. Word.

@leif1075 3 жыл бұрын

@@bonnitasikwa7349 what is? What r ubtalking about?

@AbiGamboa 9 жыл бұрын

foliate, circumvallate and fungiform are tongue papillae where taste buds are located, right? they are not the real taste buds. That is one of the misconceptions.

@mermaidtale1 7 жыл бұрын

yes

@WaseemKhan-ft2ly 7 жыл бұрын

Abigail Gamboa agree

@WilliamGoo98 5 жыл бұрын

@abigail Gamboa Yeap! Filiform papillae doesn't contain taste buds, but circumvallate and fungiform papillae do!

@motun5714 5 жыл бұрын

exactly! each papilla has hundreds of buds which have the receptors

@shauryapratapsingh5530 3 жыл бұрын

I had the same question.

@AlignYourHealthAZ 9 жыл бұрын

Thank you!

@kackieedgcumbe8477 10 жыл бұрын

thank you so much

@annarai74 9 жыл бұрын

thanks!

@fashionholicable 8 жыл бұрын

Besides opening the ion channels, Doesn't the Gprotein cause PLC to generate something ?

@ruby-pm8zw 3 жыл бұрын

gives a well general overview

@solmanoban2556 3 жыл бұрын

i love this guy. he's a bumbling mess he sounds like hes tutoring his crush! lol

@adamwaskiewicz7378 8 жыл бұрын

Ok so the narrator said that intramembranous g protein, after being dissociated, can do a couple of things. One of them is opening ion channels and he did not talk about the other one right?

@vinodhiniravishankar9173 6 жыл бұрын

the other one, he meant, was the firing of action potential. yeah, it could be stated as one thing. coz its just steps in the same process.

@hosseinrafipoor8784 10 жыл бұрын

thank you!

@tusharkush7 5 жыл бұрын

The video is clearly not made by an expert rather a person who just googled five minutes before making the video.Taste buds are different from taste papillae and taste receptor cells do not have axons rather they synapse with neurons having axons going to brain. This video according to me is merely jargons for a layman.

@blessedslave 5 жыл бұрын

Definitely not

@star_fruit5008 8 ай бұрын

what a god damned nerd you are

@adritadas8710 4 жыл бұрын

hello khanacademy, i have been a fan of your videos and had had much help while preparing for my boards and entrance examinations. now i am in a reputed medical college and a small part of the credit does go to you. but to see this much misinformation being propagated is very saddening. i would really request whoever doing this video to please read proper books before doing this because people often just watch your videos before an exam and they might be misguided.

@meriahcharles9279 6 жыл бұрын

But if the salt molecule only activates via ion channels how can it go on a sweet receptor and activate a g protein?

@calebm6818 3 жыл бұрын

It doesn't need to. By adding the ion channel, the Na+ from NaCl depolarizes the membrane and effectively stimulates the sweet cell. I think his point was to show that it is the cell and its wiring, and not the type of receptor, that determines flavor perception.

@chrislee176 3 жыл бұрын

Nice video, but I think he incorrectly refers to papillae as tastebuds. No?

@Chittiprapamcham 2 жыл бұрын

@avantikavaliyatharavath5261 Жыл бұрын

Nice😍🥰😘😘

@pdp9459 6 жыл бұрын

Axons from the taste cell???? Nooooo

@jenmaresh 3 жыл бұрын

Yes, I thought the taste cells synapse with the sensory afferent neuron?

@vinodhiniravishankar9173 6 жыл бұрын

what? will salt molecule even activate the sweet cells? it's not quite possible naturally, right? only sweet molecules activate the sweet cells.

@calebm6818 3 жыл бұрын

Yes, it isn't possible naturally. I think he meant that a salt molecule can activate the sweet cells IF you add in the ion channels that are activated by the salt molecules.

@ncebakazidlamini6861 8 жыл бұрын

what about the filiform tastebud

@al-yamantaha9732 6 жыл бұрын

Ncebakazi Dlamini filiform rarely has any tastebuds unlike circumvallates or foliates which can have around 3000 and 1500 tastebuds respectively.

@eswathi55 9 жыл бұрын

that's a clear information... can u just give us the references

@ballsofsteel497 5 жыл бұрын

so much misinformation D:

@Qeqezwisdom 4 жыл бұрын

what he's describing as taste buds are actually papillae. NOT taste buds.

@subhasishsaha8686 4 жыл бұрын

Sir please tell a little louder.

@Brickswol 3 ай бұрын

Goose-tatory.

@bojic112 3 жыл бұрын

The taste cells don’t have aksons

@LeoAugustom 8 жыл бұрын

GASP! he said "molecule of NaCl"

@teamtheguywhoalmosthitbela6683 7 жыл бұрын

LeoM So isnt NaCl a molecule?

@LeoAugustom 7 жыл бұрын

Nope, it's an ionic compound. Atoms in molecules are glued together by covalent bonds.

@clubadv 6 жыл бұрын

Breathe Leo, basic chemistry doesn't distinguish between electrostatic bonds and covalent ones....but they will qualify that to the non laymen someday in their journey.