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

Define sepsis - nutrition during stress, Define SEPSIS - Nutrition during S...

Define SEPSIS - Nutrition during Stress? Sepsis is defined as the presence of an infection due to an identifiable organism. Bacteria and their toxins lead to a strong inflammat

Sinus venarum, The interior of the right atrium has a rough anterior part, ...

The interior of the right atrium has a rough anterior part, the atrium proper and a smooth part called the sinus venarum. Also it has an appendage called the auricle. All the large

Historically how the origin of life on earth been explained, Historically h...

Historically how has the origin of life on earth been explained? The mainly recurrent explanation for the phenomenon of life on earth is the mythological. The People from vario

Divergence - mechanism of gastrulation, DIVERGENC E - In it blastom...

DIVERGENC E - In it blastomeres move in different directions i.e. inside the blastocoel the blastomeres move in different directions. The blastomeres which move inside i

Very low density lipoproteins, Triglyceride and cholesterol synthesized in ...

Triglyceride and cholesterol synthesized in the liver are secreted in very low density lipoprotein (VLDL) particles which serve to transport the lipids to the periphery. VLDL form

What are brief descriptions test hypothesis, What are brief descriptions of...

What are brief descriptions of how you could test hypothesis. or how would you know if your hypothesis is testable?

Water relations in terrestrial environment, Water Relations in Terrestrial ...

Water Relations in Terrestrial Environment Insects are the largest group of metazoans which have most successfully invaded the terrestrial environment. In addition, most arach

What is st elevation in leads without q-wave, Q. What is ST Elevation in Le...

Q. What is ST Elevation in Leads without Q-Wave? ST elevation in leads without Q-waves can occur in few very different situations, both of which are fairly uncommon. The first

Explain about the weight cycling - energy balance, Explain about the Weight...

Explain about the Weight cycling - energy balance? There are a number of obese people who keep losing and gaining weight a number of times in their lives. This is called the Yo

Response to cold - responses of plants to stress, Response to Cold - Respon...

Response to Cold - Responses of Plants to Stress Let us first see what happen to a plant when it is exposed to a cold climate with temperatures below 0°C. If the temperature i

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