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

Explain in detail about working of heart, Explain in detail about working o...

Explain in detail about working of heart Heart has four chambers. Two upper chambers are called atria. Two muscular lower chambers are called ventricles. The right and left

Wetlands and estuaries, Wetlands and estuaries are transitional biomes. Lan...

Wetlands and estuaries are transitional biomes. Land that remains flooded either part of the year or permanently with fresh or salt water is known as wetland. The internationally a

Pre-operative teaching in cardiac surgical operation, Pre-operative Teachin...

Pre-operative Teaching Brief explanation-anatomy, physiology of the cardio-respiratory system.  The disease and the operation which is going to be done.  Operati

Photosynthesis rate varies according to the photic energy, Photosynthesis r...

Photosynthesis rate varies according to the photic energy intensity. Do the similar occur in aerobic respiration? What happens to the glucose balance as a result of these variation

Define the term - hemiplegia, Define the term - Hemiplegia The characte...

Define the term - Hemiplegia The characteristics of hemiplegia (again, hemi means "half") are loss of voluntary movements on one side of the body, changes in postural tone, and

What are the main sources of mercury pollution, Q. What are the environment...

Q. What are the environmental harms caused by mercury pollution? What are the main sources of mercury pollution? The Mercury is a metal that when present in the water of rivers

What is fluoride inhibitor, Fluoride Inhibitor Fluoride inhibits  enola...

Fluoride Inhibitor Fluoride inhibits  enolase enzyme involved in the conversion of 2-phosphoglerate  to phosphoenol pyruvate.

What is the constitution of the cartilaginous matrix, What is the constitut...

What is the constitution of the cartilaginous matrix? The cartilaginous matrix is made of collagen fibers, mostly collagen type II, and of proteoglycans, proteins associated to

U, uses of conductometry in biological experiments

uses of conductometry in biological experiments

What is the endocrine function of the placenta, Q. What is the endocrine fu...

Q. What is the endocrine function of the placenta? The placenta is not a permanent gland of the endocrine system other than this it also has endocrinal function. The placenta p

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