Egg Makes Sure That Sperm Don't Get Too Old

In: Science

Submitted By dejesusjinnie
Words 345
Pages 2
Egg Makes Sure That Sperm Don't Get Too Old

The article primary’s claim is that the result is an important step towards future stem cell therapy (science daily).

I. Observe and Generalize:
• I would like to learn more on how men are fertile throughout life. I would like to find out the how this is a contrast to women?

II. Hypothesis:
• The subject and/or hypothesis of this claim, is that the fertilizing sperm can get help from the egg to rejuvenate (science daily).

III. Experiment (science daily)process:
• The risk of chromosomal abnormalities in the fetus is highly correlated to the age of the mother, but is nearly independent of the age of the father.
• Each time a cell divides, the genetic material becomes shorter.
• The ends of the chromosomes, known as "telomeres", are important for the genetic stability of the cell and they act as a DNA clock that measures the age of the cell.
• The cell stops dividing and dies when the telomeres become too short.
• The discovery that the egg cell can extend the telomeres of a fertilizing sperm cell is important in the development of stem cell therapy.
• Stem cell therapy involves replacing the cell nucleus in unfertilized egg with a nucleus from a somatic cell that has come from a patient who needs a stem cell transplantation.
• When the cell has divided a few times, it is possible to harvest stem cells that are then allowed to mature to the cell type that the recipient needs.

IV. Interpretation of the Data:
• I feel that the data does support and it defends the hypothesis.

V. Conclusion (science daily):
• Sahlgrenska Academy from University of Gothenburg in Sweden made the discovery that the egg cells have the ability to rejuvenate other cells, and this is an important result for future stem cell research.
• The source used were appropriate and a verifiable reference.
• I would have liked…...

Similar Documents

The Sperm and the Egg

...The Sperm and the Egg: A Story of How Charlie and Penelope Met and Fell in Love PSY/265 March 10, 2013 The Sperm and the Egg Many people have had to sit through the birds and the bees’ explanation of where babies come from. Parents use this because it is a way of explanation without feeling as uncomfortable as one would be if they had to look their child in the eye and describe exactly what happens. This explanation would probably be easier for a parent than going through the difficult task of clarification of the scientific process even though it will be much more useful later on in life. Because every parent has to explain the process no matter the method, it would probably be more effective if the use of visual aids that show each of the steps in how the process works. However, it should be age appropriate and at the parents discretion. Both girls and boys need this information (sexual reproductive system) explained to them in any case because if left in the dark, not only would the girl be at a disadvantage when she starts menstruating, but they could end up being a parent too young in their lives. These things can be a major shock if unprepared. To explain how the scientific version works, one would have to first look at and explain the male and female body parts used; the vagina and penis. The vagina consists of the cervix, uterus, and two ovaries which are connected to the fallopian tubes. All of these complex structures are what makes the woman’s reproductive......

Words: 1226 - Pages: 5

The Sperm and the Egg

...This is a story about Sam the Sperm, and Sally the Egg. This is an exciting day for Sam and Sally because they are going to be fertilized today. Fertilization is the moment Sam and Sally fuse together and a new individual begins to form. Sally has been waiting for this day for 28 years, since her egg was produced when she was in the fetal ovaries, along with five million others, but today she is the chosen one! Sam feels like he has won the lotto because he is the only one out of 500 million mobile sperm discharged today, in one ejaculation that will get to fertilize! Sam’s life begins in the seminiferous tubules, inside the testes, where he has been maturing about two months. Before the great ejaculation, he moves to the epididymis waiting for the great force that pushes him through the urethra. In the urethra, he is mixed with a secretion from the prostate gland containing substances that facilitate his long journey to the female ovum, better known as Sally. First, Sam the Sperm and the prostate secretion are discharged with immense force by the way of contractions of the pelvic muscles, and then they are followed by a sugar-containing fluid from the seminal vesicles (glands emptying into the vas deferens). From there he exits the penis into the vagina where his journey of fertilization begins. Sally has had a much longer life than Sam has because she was formed while still in the fetus of a human being. Her chances of becoming fertilized are about one in 500......

Words: 770 - Pages: 4

Sperm and Egg Assignment

...The Sperm and the Egg Well, to better understand how babies are born, you have to understand how the entire process works between the sperm and the egg. The reproductive system of the male has two essential functions and those are production of sperm and the delivery of the sperm to the reproductive tract of the female. The sperm production takes place in the testes (male’s testicles). Basically, each testicle has to produce and start spermatogenesis. Spermatogenesis has several different processes that start at the primary spermatocyte and go to secondary spermatocyte, into spermatids then finally into plain sperm with a mid-piece tail. Testosterone is needed for the making of sperm. The responsibility of the female in a successful reproduction is definitely higher than that of the male. The female must produce eggs, be able to receive sperm from the male, provide the right environment to host the fertilization and implantation and have the ability to nourish the developing baby before and after birth. Egg formation takes place in the ovaries. For a woman to become pregnant, the sperm must enter the vagina within 5 days before or on the exact day of ovulation. Ovulation takes place about two weeks after the beginning of menstruation. Sexual activity dilates the arterioles that supply blood to the penis. The vagina is penetrated when blood accumulates in three different sinuses in the penis, and it becomes enlarged because of pressure. Ejaculation occurs...

Words: 781 - Pages: 4

The Sperm and Egg

...The Sperm and the Egg Chelsie Robinson University of Phoenix The Sperm and the Egg This story is about Drogo the sperm and Dany the egg and their journey to fertilization. Drogo along with 500 million other warriors race to get to the beautiful Dany to get the chance to fertilize her. Drogo’s life begins in the seminiferous tubules also called the testes. The testes are the male gonads and secret sex hormones and produce mature germ cells (Rathus, Nevid, & Fichner-Rathus, 2011). He has been training and maturing for about two months in the testes. He then moves to the epididymis to wait for the journey to begin. The epididymis is a tube that sits on the back of each testicle and stores sperm (Rathus, Nevid, & Fichner-Rathus, 2011). He then passes through the urethra. While in the urethra he is partnered with a secretion from the prostate gland which helps him make the journey to Dany a little easier. The prostate gland lies under the bladder and secrets prostatic fluid, which gives semen its characteristics (Rathus, Nevid, & Fichner-Rathus, 2011). Drogo and the secretion are released with force by the contractions of the pelvic muscles. They are followed by a substance from the seminal vesicles, which is rich in fructose which helps nourish Drogo on his journey. Drogo then exits the penis and enters the vagina where fertilization starts. Drogo is ejaculated into the vaginal cavity, along with his fellow warriors, when the penis is inside of the vagina......

Words: 791 - Pages: 4

Sperm and Egg

...THE SPERM AND THE EGG The Sperm and The Egg PSY/ 265 March 20, 2014 I am Egg. I have taken the long, dark journey into the infundibulum. This is the outermost part of the woman’s fallopian tube. Sperm, my soul mate, has been waiting for me to make this trip for an eternity. The sperm is the germ cell of a male. We can now finally meet. I have been waiting for this instant for so long now. I am very much looking forward to meeting him. I am one of some 400,000 eggs that have developed in this woman’s ovaries since puberty. Some 400 of us have survived to this point in her life and have ripened into ova. I finally get to be the one ova that is released during this month’s ovulation. The other ova have their growth suppressed by me for this special event. My home has always been the ovary. I am now moving into a new spot in town, the fallopian tube. Here I will await my friend Sperm’s arrival. It has taken me some time to get from the ovary to this point. Now, only two weeks remain before the woman’s next menstruation. I am so small that this 4 inch tube has taken me a long time to traverse. The cilia that line the tube helped to push me along down the tube’s length. The cilia are miniscule hair-like structures that make this possible. They were able to move me along at a rate of an inch each day. Today is my first full day in the fallopian tube. I trust that Sperm will be......

Words: 829 - Pages: 4

Not Too Sure Yet

...the pale, brown-haired girl with blue eyes too big for her face staring back at me, and give up. My only option is to restrain my wayward hair in a ponytail and hope that I look semi presentable. Kate is my roommate, and she has chosen today of all days to succumb to the flu. Therefore, she cannot attend the interview she’d arranged to do, with some megaindustrialist tycoon I’ve never heard of, for the student newspaper. So I have been volunteered. I have final exams to cram for, one essay to finish, and I’m supposed to be working this afternoon, but no – today I have to drive a hundred and sixty-five miles to downtown Seattle in order to meet the enigmatic CEO of Grey Enterprises Holdings Inc. As an exceptional entrepreneur and major benefactor of our University, his time is extraordinarily precious – much more precious than mine – but he has granted Kate an interview. A real coup, she tells me. Damn her extra-curricular activities. Kate is huddled on the couch in the living room.“Ana, I’m sorry. It took me nine months to get this interview. It will take another six to reschedule, and we’ll both have graduated by then. As the editor, I can’t blow this off. Please,” Kate begs me in her rasping, sore throat voice. How does she do it? Even ill she looks gamine and gorgeous, strawberry blonde hair in place and green eyes bright, although now red-rimmed and runny. I ignore my pang of unwelcome sympathy. “Of course I’ll go Kate. You should get back to bed. Would you like some......

Words: 150905 - Pages: 604

The Life of the Sperm and Egg

...– Dr. Zaleski In fertilization, the organs that make up the reproductive system in males plays the role of producing and discharging sperm within the female reproductive tract. The penis, scrotum, testes, sperm, epididymis, and accessory organs make up the reproductive organs in a male. In addition to being used for sexual intercourse and the pathway for semen, the penis is also where urine is passed through. The scrotum is a pouch located below the base of the penis, with two compartments. The compartments of the scrotum hold the testes. Each testicle is held in place by a spermatic cord. The spermatic cord is a structure that contains the vas deferens, blood vessels and nerves, and the cremaster muscle. This muscle controls the movement of testicle within the scrotum when there is a change in temperature and sexual stimulation (Rathus & Fichner-Rathus, 2011). The testes are responsible for the production of mature germ cells and the secretion of sex hormones. The epididymis is a tube that stores sperm and lies against the back wall of each testicle. The accessory glands of the male respiratory system include the seminal vesicles, the prostate and Cowper’s gland. Seminal vesicles are 2 inches in length and located behind the bladder. The seminal vesicles open into ejaculatory ducts and secrete fluids that combine with sperm to keep it nourished and active. Sperm must be active in order to contribute to the act of fertilization. ......

Words: 1052 - Pages: 5

Eggs Sperm and Hormones

...Sperm is produced in the seminiferous tubules of the testes and are stored in the epididymis. (t From the epididymis the sperm travel along the vas deferens. Sperm then continue along the vas deferens and pass by the seminal vesicle and prostate where fluids are added. Eventually this mixture reaches the urethra, passing by Cowper's gland where more fluids are added, to be ejaculated out of the penis as semen. The fluids come from the prostate gland, and the seminal vesicle. Its purpose is to act as a transported for the sperm. It provides the sperm a way to move throughout the vagina. The Ovarian cycle takes place in the ovaries. It is the normal cycle that includes development of an ovarian follicle, rupture of the follicle, discharge of the ovum, and formation and regression of a corpus luteum. The uterine cycle is the building up and breaking down of the uterine lining or menstruation. The ovarian cycle happens first about a week or so before uterine cycle. The ovarian cycle happens first and if the egg is not fertilized by a sperm, then a week or so later the ovarian cycle, or menstruation happens. LH causes secretion of testosterone and other androgens by the interstitial cells. FSH stimulates the production of sperm. Testosterone plays a key role in the development of male reproductive tissues like the testis and prostate. It also promotes secondary sexual characteristics like increased muscle, bone mass, and the growth of body hair. LH levels rise during......

Words: 577 - Pages: 3

Don't Get Me Started

...Don’t get me started………. this is about having a big family. Yes family Is wonderful but when you are being introduced to your 5th, 7th, 10th and even your 20th cousin. It kinda gets boring. I love my family even my very extended family but……. There is always that disappointed look when my dad’s uncle’s grandfather’s nephew look at me and says “don’t you remember me?” and I would lie through my teeth “yeah sure I remember you, you were that guy that visited me when I was younger but I have unfortunately forgotten your name.” he would be all pleased and state his name “My name is Rashid Abdul Mohammed Hungara Bungara. Now imagine this 20 more times. It quit frustrating as you can see. My family originated from the great land of India which in fact is the second most populated country in the world so I have an “extensive” family. Yes when I say family that unfortunately that means my sibling. Siblings. A living nightmare that walks and talks and unfortunately eats. Before I start telling you the horrors of what a sibling is, let me justify that I am a brother of 18 year old of a rather temperamental girl who has quiet a mischievous streak so my childhood wasn’t exactly comfortable but I still love my sister despite the abhorrent acts she has done. Despite that sibling rivalry only strengthens our bond we have for each other but that doesn’t mean I can’t complain of her mistakes. Trust me; she makes a lot of mistakes. I have only one sibling and that was enough to send me......

Words: 424 - Pages: 2

The Sperm and Egg

...The Sperm and the Egg Danyell Daniel Psy/265 October 9, 2015 Frank Brusinski The Sperm and the Egg Trace the movements of the sperm and the egg from their development to fertilization. While a man (John) and women (Nancy) comment the act of sexual affairs, the women has to be in a productive state and her body will discharge one egg for the sperm to residence. John will discharge anywhere from 100 million to 300 million sperms in one conference of intercourse, His sperm must first make their way thru the cervix into the uterus then on to the fallopian tube, the liquid portion of the semen not only provide the sperm but is also use as a nourishment for the journey into the and then swim thru the fallopian tube. As the sperm make it journey they will start to die off, not all sperm will make it to the egg there can only be one victor in this story. There will be a few thousand that will get close during the trip and as they get close the will start to change their patterns with alteration of their heads. The liquid portion of the semen also provides directions for the sperm so they will not wander too far off the path. Any sperm that has not successfully made it thru the cervix is not going to make the complete journey and will release out of the Nancy body after the sex act. For the sperm that make it thru the cervical canal it is greatly welcomed environment the sperm will find that there is an abundance of cervical mucus, the mucus will transport the sperm......

Words: 1367 - Pages: 6

Sperm and the Egg

...By: Lisa Smith This is a story about Jim the Sperm, and Lisa the Egg. This is a very exiting day for Jim and Lisa for they are going to get fertilized. Fertilization is when Jim and Lisa will fuse together and become a new individual. Lisa has been waiting for this day for 22 years since her egg was produced, when she was in the fetal ovaries, along with five million who are waiting to be chosen. For Lisa haven been the lucky one others she was chosen. Jim feels like he has won a million bucks for he was the only one out of 500 million mobile sperm to be discharged. Today in just one ejaculation that will be fertilized. Jim’s life begins in the somniferous tubes, inside the testes. Where he has been for 2 months maturing. Before the great ejaculation, he moves himself to the epididymis awaiting; the great push that pushes him through urethra. When Jim enters the urethra, he is mixed with a secretion from the prostrate gland. This contains substance that is called ciliate his long awaited journey to Lisa. First of all Jim the sperm and the prostate secretion are discharged with immense forced by the way of a contractions of the pelvic muscles and then they followed by a sugar-containing fluid from the seminal vesicles. From there he exits the penis into the vagina and he begins his journey to fertilization upon entering the vagina he has a journey himself. For Jim is a high swimmer and is on his way to the fallopian tubes where he will meet Lisa. On his journey Jim will......

Words: 421 - Pages: 2

The Sperm and the Egg

...To trace the process of the sperm successfully reaching the egg and the ability to start fertilization depends on several factors. One being the sperm must be capable of propelling through the vagina and cervix to reach the egg. Two, the conditions must be just right for the sperm to travel through the layers of cervical mucus that guard the entrance to the uterus. Three, the sperm must have the capability of converting to a form that can penetrate the cell membrane of the egg. Jumping back a few steps you can follow the path that the semen follows starting at ejaculation. This starts with the semen forming into a gel that protects it from the acidic environment of the vagina. The gel is liquefied by the prostate gland within 20 to 30 minutes by enzymes. This liquefaction is key to free the sperm for transportation to occur. The seminal plasma is then left in the vagina following ejaculation, and the sperm continues its journey. The protected sperm starts to travel through the layers of cervical mucus that guard the entrance to the uterus. This is easier for the sperm during ovulation because the barrier becomes thinner and changes its acidity levels. This in turns creates a friendlier environment for the sperm. The cervical mucus in turn also acts as a reservoir for extended sperm survival while traveling to the uterus. Once the sperm has entered the uterus through the cervical mucus the woman’s contractions, propel the sperm further upward into the fallopian tubes.......

Words: 857 - Pages: 4

The Sperm and the Egg

...Assignment: The Sperm and the Egg Nathaniel Morris PSY/265 3/18/2012 Nicole Pansey Week 1 Assignment: The Sperm and the Egg Many of us have heard about the birds and the bees. Most parents find this story to better illustrate how conception happens. When a young child asks their parent “Where do babies come from”, a parent may find it hard to look in their young child’s eyes, and describe exactly what happens. The actual scientific process may be harder to explain, but will be more useful for the child when they get older. It would probably be more effective with a variety of visual aids, and preparation in order to present this to an adolescent. Deciding at what age to tell your child the scientific version should depend on the parent. The “birds and bees story” may be more appropriate for a younger child, and the scientific version can be more explained when they are a little more mature. A girl should know about the sexual reproductive system when she starts menstruating. If she is not taught properly, she may not understand what is going on with her body, and may wind up pregnant at an early age. In order to explain the scientific version, first, you would have to start out by explaining the immediate male and female body parts that are involved; the penis and vagina. The inner part of the vagina consists of two ovaries, the cervix, and the uterus that are all connected to the uterus by the fallopian tubes. These are all structures that make up the......

Words: 1207 - Pages: 5

The Sperm and the Egg

...Running head: THE SPERM AND THE EGG Assignment: The Sperm and the Egg 1 YOUR NAME PSY/265 DATE NAME OF PROFESSOR The Sperm and the Egg It has certainly been a wild adventure on my way to the infundibulum, which serves as the outer component of a female’s fallopian tube (Nevid, Rathus & Fichner-Rathus, 2005). My name is ‘Egg’. In fact, all of my siblings share the same exact name! I am anxiously awaiting my friends to arrive. They are all named ‘Sperm’ and are considered to be male germ cells. It has been quite a long time since I last saw them. I have been preparing for their arrival for quite some time and cannot wait to see them! It was a daunting task to be here in the first place. The ovary in which I live near had roughly 400,000 other eggs; however, when she was younger, she experienced puberty; as a result, only 1% of us made it to transformed into ripened ova. I am finally able to be the ova responsible for suppressing the development of additional ova in order to be discharged during the ovulation period (Nevid, Rathus, et al., 2005). As soon as I made my journey away from the ovary, I travelled all of the way to the fallopian tube. I am now still in the fallopian tube waiting for my friends to come over. It took a great amount of effort for me to journey through the fallopian tube; as such, ovulation occurs roughly every two weeks prior to menstruation. The tube I travelled through is only four inches in length; however, in order for me to......

Words: 958 - Pages: 4

How to Make Scramble Egg

...How to Make Scrambled Eggs Ingredients * 2 eggs per person * Salt and pepper (optional) * Butter * Cheddar cheese (optional) * Milk (optional) Prepare the eggs. Break two eggs per person into a bowl or jug. Add one tablespoon of milk, water, or sour cream per egg if you prefer a more tender moist dish; adding liquid to the eggs means the dish is less likely to turn out tough or rubbery. Mix well until the color and texture are uniform throughout. Add salt and pepper to season, if desired. Select the right sized pan for the number of eggs you will scramble. Two eggs will require a very small pan, while a dozen eggs requires a much larger one. Heat a pat of butter (2 teaspoons), bacon grease or oil in a frying pan. Move the pan by its handle, so that the melted fat glides around the surface and coats the entire pan. Flick some tap water onto the skillet from your fingertips to test the heat. When small droplets sizzle and evaporate, the pan is just hot enough to pour in the egg mixture. Continue to whisk as you pour the egg mixture into the pan. Set the burner on low. Watch that as the eggs start to cook, the mixture solidifies. As soon as this starts happening, move the mixture around the pan with a spatula to scrape the cooked eggs from the bottom to the top of the mixture and expose the still-wet portions to the heat. This keeps the eggs from developing a leathery brown skin on the bottom. Look to see if your eggs are almost cooked; when they are,...

Words: 383 - Pages: 2