Protection of female gametes from male gametes
Explain, how the male gametes go through the egg cell? How the female gametes guard itself from entry of more gametes after the first sperm cell?
Expert
Sperm cell which reaches the egg cell activates the acrosome reaction, a procedure where the hydrolytic enzymes of the acrosome are liberated on the external surface of zona pellucida (a protective layer that surrounds the egg cell). Portion of this layer is digested by acrosomal enzymes offering the sperm cell to arrive at the plasma membrane of the egg cell performing the fecundation.
At the moment, that sperm cell forms the contact with egg cell membrane a chemical alteration of this membrane takes place. Enzymes liberated by the exocytosis form the zona pellucida not capable to bind to other sperm cells and other male gametes are not able to enter the egg cell.
Write down the mechanisms of hemorrhage contention?
What are the major kinds of lipids?
Whether fecundation in amphibians is external or internal? Also explain whether amphibians are evolutionarily proximal to fishes or to reptiles?
Why we can say that each glucose molecule runs Krebs cycle twice?
Mass transportation across cell membrane: Mass transportation is the entrance or existence of substances in or from the cell engulfed by portions of membrane. The fusion of internal substance having membranous vesicles with the cell membrane is termed
Name the three main cell types which form the osseous tissue? Also explain their functions?
Briefly describe the functions of testosterone?
What is the cause and cure of Tetanus?
Determinates of organizational structure Some organizations have different characteristics and requirements, it would not be possible to identify an ideal structure
Self-Directed Work Teams: The self-directed work team (abbreviated as SDWT) is a group of people, usually employees in a company, who unite various skills and talents to work devoid of the customary managerial supervision toward a common purpose or go
18,76,764
1948544 Asked
3,689
Active Tutors
1430910
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!