Egg envelopes, Biology

Assignment Help:

Egg Envelopes

Like any other cell, all the eggs are covered by the cell membrane or plasmalemma It is with two layers of about 50 A? (unit membrane) separated by a gap of 60 A?. In addition to plasmalemma, the eggs of practically all animals are surrounded by special egg envelopes (or egg membranes).

Based on their origin, types of egg envelopes are

  • Primary or
  • Secondary ones.

Related Discussions:- Egg envelopes

Illustrate about the complex partial seizures, State about the Complex part...

State about the Complex partial seizures Complex partial seizures, another type of focal seizure, originate most commonly in the temporal lobe. Complex partial seizures are cha

Proteins of animal origin - shell fish, Proteins of Animal Origin - Shell F...

Proteins of Animal Origin - Shell Fish Shell Fish: Information on shellfish is fragmentary and incomplete. In shell fish, the shell comprises of a large portion of live weight

Molecular biology, how biochemical evidence proof DNA as a genetic material...

how biochemical evidence proof DNA as a genetic material?

How are the change in the ageing lens occurred in metabolism, How are the c...

How are the change in the ageing lens occurred in the metabolism? Changes in the Ageing Lens 1) Physical changes: Lens weight increases, light transmission decreases, li

What is carbon cycle explain briefly, What is Carbon Cycle explain briefly?...

What is Carbon Cycle explain briefly? Life on earth is mainly carbon-based. Most of the material substances that make up living organisms consist of organic compounds of carbon

Explain carbon and oxygen aspect of using phase rule, Explain carbon and ox...

Explain carbon and oxygen aspect of using phase rule? Consider a system containing solid carbon (graphite) and a gaseous mixture of O 2 , CO, and CO 2 . There are four species

Nursing care and treatment for cleft palate, Nursing Care and Treatment  ...

Nursing Care and Treatment   The only treatment is surgical repair and child may be operated before 18 months as per the choice of surgeon so  that speech pattern of child may

Determine energy requirements for athletes, Determine Energy Requirements f...

Determine Energy Requirements for Athletes? You are familiar with the fact that body needs' energy to maintain body temperature, to meet metabolic demands, maintain electrolyte

Nutrition, list and explain the modes of nutrition

list and explain the modes of nutrition

Use of aldehydes as chemical sterilant, Q. Use of Aldehydes as chemical ste...

Q. Use of Aldehydes as chemical sterilant? Formaldehyde: widely employed for the fumigation of operation theatres. Glutaraldehyde: commercial preparations are active at

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd