The middle piece possesses numerous mitochondria (25 to 30 arranged spirally) which produce energy for the movement of the tail and that is why it is called a powerhouse of sperm. The tail is made up of a central axial filament surrounded by a small amount of cytoplasm and cell membrane ...
Arising from the upper portion of the uterus on each side are theFallopian tubes. These are channels that allow eggs from the ovaries to enter the uterus. The process of fertilizationof an egg by a sperm cell typically happens in the Fallopian tubes, and the fertilized egg moves into the u...
During sexual intercourse, the vulva serves as an entry point to the vagina, allowing sperm to collect before traveling through the cervix toward the uterus and fallopian tubes, where a sperm cell may potentially fertilize an egg cell. The vulva contains sensitive nerve endings that, when stimulat...
As you know, sperm cells look a bit like tadpoles with long tails, orflagella, which they whip in order to swim to their destination and fertilize an egg cell. The sperm tail is made of tubulin and is an example of a microtubule filament used for cell locomotion. Another well-known moti...
of swarm, close to its edge. In most cases, the large variety of cell lengths in a specific sample is due to proliferation and cell division, thus the mean cell length does not have a Gaussian distribution (the size is bounded in the range 1–2 times the length of a single cell). ...
[1]The nucleus of the sperm/ male sex cell fuses with the nucleus of the egg/ female sex cell.(c) In the diagram below, indicate with an "X" the part of the female reproductive system where the foetus develops.1力3季 相关知识点: ...
[1]The nucleus of the sperm/male sex cell fuses with the nucleus of the egg/female sex cell.(c) In the diagram below, indicate with an "X" the part of the female reproductive system where the foetus develops.11 相关知识点: 试题来源: 解析 A,D,C,BThe nucleus of the sperm/male sex...
31. The diagram below shows the stages in the development of a foetus.A一 B CD(a) Based on the diagram above, arrange the stages of the development of the foetus in the correct order.[1(b) During fertilization, what must happen to the male and female reproductive cells to ensure that...
This stage of reproducing where sperm meets an egg is known as fusion and results in a zygote. The zygote is the first stage in the diploid phase, it is a specialized type of cell that is a product of fusion between the sperm and egg. Once the zygote is formed, the cell undergoes ...
Microvilli act as an anchoring agent in white blood cells and in sperms during fertilization. Mitochondria Mitochondria are double membrane-bound cell organelles responsible for the supply and storage of energy for the cell. The oxidation of various substrates in the cell to release energy in the ...