Explain the penetration the male gamete to the egg cell
Explain the penetration the male gamete to the egg cell? How does the female gamete defend itself from the entry of more gametes after the entry of the first sperm cell?
Expert
The sperm cell that arrives at the egg cell activate the acrosome response, a procedure in which hydrolytic enzymes of the acrosome are freed on the exterior surface of the zona pellucid (the protective cover that surrounds the egg cell). A part of this cover is digested by the acrosomal enzymes permitting the sperm cell to attain the plasma membrane of the egg cell carrying out fecundation. At the point that the sperm cell establishes contact with the egg cell membrane a chemical change of this membrane happens. Enzymes secreted by exocytosis (cortical reaction) create the zona pellucida unable to bind to other sperm cells (zonal reaction) and other male gametes can’t enter the egg cell.
Name the human diseases caused by the platyhelminthes?
Why can a consumption of molecular oxygen point to the metabolic rate of the aerobic organisms?
Give a brief explanation of inductive or latent period?
In the market place mostly modern countries put banned on the trading of human organs. Which people are most likely to be capable to get the organs that they need and why?
Write down the primary structure of protein? And also write down the significance of the primary structure?
Define the term zymogens?
Perception is a process consisting of several sub-processes. We can take an input-throughput-output approach to understand the dynamics of the perceptual process. This approach emphasizes that there is input, which is processed and gives output. The stimuli in the environment - subjects, events,
Explain the formation of the female gametophyte within the angiosperms?
Emerging Business Venture: It is a business venture is a start-up enterprise which is formed with the expectation and plan that a financial profit will outcome. Most refer to a business venture as a small business, as it normally starts out with an id
Write down the average incubation period of the Chagas’ disease? And also write down some signs and symptoms of acute phase of the Chagas’ disease?
18,76,764
1961029 Asked
3,689
Active Tutors
1444264
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!