Acrosome Reaction in Sea Urchin

During fertilization, a sperm must first fuse with the plasma membrane and then penetrate the female egg cell in order to fertilize it. Fusing to the egg cell usually causes little problem, whereas penetrating through the egg's hard shell or extracellular matrix can present more of a problem to the sperm. Therefore, sperm cells go through a process known as the acrosome reaction which is the reaction that occurs in the acrosome of the sperm as it approaches the egg. The acrosome is a cap-like structure over the anterior half of the sperm's head.
In some echinoderms, including starfish and sea urchins, a major portion of the exposed acrosomal content contains a protein that temporarily holds the sperm on the egg's surface
Bindin is an insoluble protein coating the sperm acrosome process and mediating the adhesion of sperm to sea urchin eggs.

[@hussainbiology]

at 1:46 I said "it triggers the fusion of acrosomal membrane with sperm cell".
Actually it is "it triggers the fusion of acrosomal membrane with egg cell"

[@indiancitizen4334]

In the Ninth edition of Gilbert it mentions the fusion of acrosomal membrane with sperm cell but thank you sir for your further clarification on this. And thank you sir for your awesome contribution to learners.

[@bidhisingh9982]

Real diamond of India..... Our Hussain bro. The greatest Indian biologist

[@hussainbiology]

thanks Bidhi for appreciation...U always make me feel like a star.... Thanks again and keep sharing

[@sketchy1113]

Noting down this whole vdo....super informative n clear

[@kritikaneeraj5450]

Very well and easy explanation.

[@khailiaymane9865]

Thanks, it's very interesting!!! Amazing explications

[@hussainbiology]

thanks for appreciation...

[@adeelmiraj5683]

Amazing brother... so clear diagrams...and was easy too...thank you

[@hussainbiology]

thanks for appreciation..Glad to know that it helps ✌️

[@nifatjan7458]

Great explanation....much helpful thank you sir....

[@hussainbiology]

thanks Nifat for appreciation....Glad to know that it helps.....Keep sharing and supporting

[@milaersoz3250]

Thanks for the information you provided. You're perfect as you've always been!!!

[@hussainbiology]

thanks for appreciation..
Glad to know that it helps ✌️

[@zainabriasatworld5387]

Bestly explained

[@ajmerjaiswal3941]

Keep Making videos like this.
Excellent content.

[@hussainbiology]

thanks Ajmer for appreciation....Glad to know that it helps

[@ajmerjaiswal3941]

@@hussainbiology welcome

[@debaswapnaray3295]

It's really wonderful channel...

[@chanumiglani7525]

very interesting video, really helpful.... thanks a ton :-)

[@hussainbiology]

thanks for appreciation..Glad to know that it helps ✌️

[@archanamishra8334]

Sir I have lots of confusion in my mind regarding this topic nd video it is a very Droppings topic plzz suggest me any idea to understand these topic

[@Prondo200]

Thank you so much!!

[@mdshahnawazzafar9562]

So,you're a kashmiri legend👍

[@animikhthakur9671]

Sir please can you provide us with a video on the topic GENE MAPPING please. I'll be highly thankful

[@hussainbiology]

Your request is my work and stands at top in my priority list ,
but the next two videos are already in progress which will occupy the dates upto 15th June.
Then surely i will consider making that video
thanks

[@sketchy1113]

During acrosomal reaction there occur...fusion of acrosomal membrane and egg plasma membrane?

[@ankanmaiti5962]

Sulphate containg polysaccharides are present on egg jelly not on egg surface. Other wise it's ok

[@DD-tr3bf]

Sir at 1.46 you said "it triggers the fusion of acrosomal membrane with sperm cell".
Don't you think it should be "it triggers the fusion of acrosomal membrane with egg cell"
Please correct me if I am wrong.

[@hussainbiology]

You are right i made a mistake here, thanks for ur valuable feedback....

[@DD-tr3bf]

Sir can you please make a video on cell fate determination of sea urchin.
Or atleast some notes on the same,here in the comment section.
I'm very much puzzled with the book's language. Thanking you in appreciation

[@DD-tr3bf]

And if possible do make a video on arabidopsis embryogenesis & shoot apical meristem. I'm having a tough time trying to learn these topics but these are important for CSIR NET exam.

[@arijitbose888]

Thanks ❤

[@healthylife2119]

Helpful.

[@hussainbiology]

thanks for appreciation...Glad to know that it helps...

[@Mr.Aman992]

Cortical reaction diagram kaise

[@dr.usamaasif]

good bhai

[@hussainbiology]

thanks for appreciation. Glad to know that it helps

[@unaisanajah1165]

👍👍👍

[@prabhjotkaurkaur9372]

Thanks u sir bt please translation v kr diya kro. Otherwise bhut Acha tha aapka lecture

[@IASTABISHNOWSHAD]

Uhh will found such types of vedio very less

[@johnsonb1350]

To Fast 😥

[@hussainbiology]

Play at 0.75 x speed... Apologies

[@Ruuh_27]

Hindi m batao