Virtual Period: Chromosomes and mitosis

1) The difference between the body cells is that the one which contains one chromosome cell is a daghter cell, which has already gone through the cell division process, while the cell which contains one chromosome before cell division, duplicates its DNA in order to allow bopth of the daughter cells  have the same amount of chromosomes. 

2) On the one hand, body cells,go through a process called mitosis. Mitosis is the process of cell division where the parent cell divides to create identical daughter cells which have the equal number of chromosomes as the parent does. A body cell contains a complete number of chromosomes and is called a diploid cell. Gametes on the other hand go through a process called meiosis. Meiosis is the process of cell division wherein the parent cell divides its chromosomes into two sets and gives rise to germ cells. A gamete contains only half the number of chromosomes of its parent cell, and it is called a haploid cell.

4) Mitosis takes place when we cut ourselves, where new skin cells are made to help heal the wound and close the scar.

 

★ Male: I will show you the drawings at school because I am having problems with my phone.

Virtual period: Male reproductive system

1)

2)

Testes: Where spermatogenesis (the creation of sperm) takes place. Process has to happen at a temperature lower than body temperature, which they do by being located in the scrotum. It Creates testosterone.

Scrotum: Regulates the temperature of the testis by retracting upward towards the body or descending depending on the temperature, using the cremaster muscle and the dartos muscle

Epididymis: Set of tubes where sperm is stored and gains more mitochondria.

Vas deferens: Drains the epididymis of sperm and transports it to the urethra.

Urethra: In women, the urinary tube serves only as a passage for urine from bladder to the region near clitoris and vagina, while in men; it is involved in dual functions that are the transfer of urine out of the body through penile opening as well as the ejaculation of seminal fluid. The process of urination is controlled by both voluntary and involuntary actions where the exter

Seminal Vesicles: Contributes fluid to sperm.

Penis: The penis serves as the male organ used to deliver semen to the female during intercourse and also houses the urethra, which is used to transport semen and urine.

Bulbourethral glands:   Produce a clear fluid that lubricates the urethra for semen transport and to reduce any acidity in the urethra that is harmful to sperm.

Prostate gland:  The prostate gland produces fluids that make up semen. These fluids also supply nutrients to the sperm.

 

4)  Semen:  Sperm-containing fluid called semen

Sperm exist to unite one half of the man’s DNA with one half of the woman’s. Since it only has a half set of DNA, sperm cells are referred to as haploid, meaning half. These DNA halves combine when the sperm fertilizes a female ova (egg). This creates a complete set of DNA in the fertilized egg, which grows into a human fetus.

It contains sperm cells, which are capable of fertilizing the female eggs. Semen also contains other liquids, known as seminal plasma, which help to keep the sperm cells viable

5)  The head contains genetic information and an enzyme to help penetrate the egg cell membrane. The middle section is packed with mitochondria for energy. The tail moves the sperm to the egg.

(I cant take a picture because I am having trouble with my phone. I will take the drawing to school)

The Hollow of the Three Hills

I would like to connect this short story with a thought of mine, something that I thought of as a little girl and know strongly believe.
To start with, I think it is important to clear something up. I dont know if I belong to a set religion, I believe in the general idea that the bible predicts, the love of god and that we are all brothers and sisters and we should love eachother with the same intensity that he did, but I dont believe in the texts in the bible nor the prayers, whenever I need to talk to god, I just do.
As a child, I have always wondered what the situation would be like after we died: if we disappear, we come back in a different body or we just stay in a better place. One day, I was watching a tv show called floricienta, where one of the main characters died, and later could watch all his loved ones from heaven.
My grandfather passed.away recently, and I`ve heard many times from people trying to make things better, that he is in a better place and sees and protects us from up there. This led me to start believing that people that go to heaven or whatever place they go to, can really see us in everything we do, they are always with us
When I read the hollow of the three hills I could see this idea clearly, although the lady is actually alive when she visits her family, but the atmosphere can create a deadly image of the place she was in, that gets close to her death. This short story and my grandfather’s passing made this image of people protecting and watching us from another dimension very clear.

The lady in the looking glass

Questions

  1. Notice how the mirror in the first paragraph is set up as the frame for a kind of a portrait.
  2. The unnamed narrator attempts to construct a portrait of the Isabella Tyson that consists of her outer self and her inner self. The portrait is reflected in the objects inside and outside the house as they reflect in the mirror.Describe the images reflected in the mirror.
  3. What kind of contrast is there between the objects inside the house and outside the house, as they are reflected in the mirror
  4. Describe how the narrator attempts to compose the portrait through the mood inside the room, through her own imagination, and through the presentation of Isabella in the mirror
  5. What are the known facts about Isabella’s outer self?
  6. What material objects inside and outside the house does the narrator use to imagine Isabella’s life?
  7. What are Isabella’s letters supposed to conceal, according to the narrator? What would one know if one could only read them?
  8. At the end of the story, according to the narrator, is it possible to know objectively one’s inner reality?
  9. In this story Woolf questions whether the inner self of an individual is finally knowable. What do you think is her conclusion? Provide support for your statement.
  10. What do you think is the role of the mirror in the story? How has the mirror been used as a metaphor in literature?
  11. Describe the characteristics of this story that resemble stream-of-consciousness narrative technique.

Find a picture of a room inside and a garden to illustrate the house in the story:

I chose this image because it has many objects inside, which can create, if they arent well organized, a disturbing image, chaos. A disturbing room for the eye can be portrayed with Isabella Tyson´s mind. The garden outside seems very peceful, as the one in “The Lady in the Looking Glass”.

 

Answers:

  1. The looking glass “framed” Isabella, wh. she looked at herself in the looking glass, all the superficial things that she carried fell off. She stood completely naked in front of the mirror, making the readers able to see what were her thoughts and feelings, she had none. The mirror framed her, uncover and found Isabella’s inner self.
  2. The images reflected in the mirror are images of death. While the lady was standing in front of the mirror you could see that, even though she seem calmed and normal on the outside , she was dead on the inside.
  3. While the inside of the house was very messy and lonely, the outside was full of life and bright. This contrast between the two places, inside and outside, reflect the lady’s state of mind, she was calmed on the outside but a mess on the inside.
  4. The objects inside the house are described as constantly moving; chaotic. While the objects outside the house are described as fragile. The mirror reflects this two states of mind.
  5. The facts known about Isabella’s outer self are that she had a lot of money. Also that she had travelled all around the world, and we can say this because she had gathered one thing from each country she was in. Also she was a spinster, and she seem to not have any family connections.
  6. We can suppose that Isabella Tyson is a very materialistic and rich woman. She is what she chooses to show; the physical part. Isabella is a spinster.
  7. The letters that Isabella wrote concealed her inside self, so her personality and her illusions. So if you read the letters you could see what she’s thinking and feeling.
  8. Yes, in the end of the story Isabella realizes that she is dead inside and she is naked of personality, so her reality is given away to the reader, and we realizes that she is lonely and lost.
  9. We can know one’s inner self but at the same time, it is empty so there is nothing to know. At the beginning we think that Isabella owns some letters that we later come to realise that they are nothing but bills.
  10. We believe the mirror is a reflection of the inner self, in the story, it has the role of discovering the real Isabella, and make her see how empty she is. The mirror is a metaphor of purification, self realization, in this case, what Isabella really is.
  11. The stream of consciousness is a technique that Virginia Woolf used when she wrote whatever that came through her mind. She used Isabella to convey her feelings, thoughts and ideas. At the end of the story, we realize that Isabella and Virginia Woolf is empty inside.

Virtual Period: Neurones and Synapse

1. When the dendrites recieve a signal they go to the axon hilock. If the signal is powerfull it will travel through the axon (that could be very long) to other cells. Some axsons are so large that they travel through all the spine and others are shorter. When the signal reaches the terminal(the final part of the neurone) it goes to other cells and can cause another signal to appear.

2. (I have problems in taking and uploading photos to my blog, I found some in the internet)

sensory:

motor:

relay:

Functions:

  • Sensory: They take information of what its happening inside and outside the body and take it to the CNS to be processed.
  • Relay: They connect one neurone to another in the CNS. They take information from one neurone and pass it to another neurone.
  • Motor: They get information from other neurons and convey them to the muscles,organs and glands.

3.    The video I chose is the following: https://www.youtube.com/watch?v=WhowH0kb7n0

 

4. Impulses are transmitted from one nerve to another by synapse. An electrical impulse travels along an axon, that triggers the nerve-ending of a neuron to release neurotransmitters, these chemicals diffuse across the synapse (the gap) and hold together with receptor molecules on the membrane of the next neuron. The receptor molecules on the second neuron hold together only to the specific chemicals released from the first neuron. The second neuron can now transmit the electrical impulse to another one.

Virtual Period: Sex Hormones and Puberty

2. Male hormone: Testosterone is the  responsible for the development of the secondary sexual characteristics. It is produced in the Testes.

Female hormone: Oestrogen and Progesterone are the hormones  responsible for the development of the secondary sexual characteristics. They are produced in the ovaries.

 

3. You can look at my comparison table by clicking Here!

 

4. FSH ( Follicle Stimulating Hormone): A hormone secreted by the  pituitary gland (placed in the brain) which promotes the formation of ova or sperm.

LH (Luteinising Hormone): A hormone secreted by the pituitary gland that stimulates ovulation in females and the synthesis of androgen in males.

Oestrogen: They promote the development and maintenance of female characteristics of the body. Such hormones are also produced artificially for use in oral contraceptives or to treat menopausal and menstrual disorders.

Progesterone: A steroid hormone released by the corpus luteum that stimulates the uterus to prepare for pregnancy.

Oxytocin: A hormone released by the pituitary gland that causes increased contraction of the uterus during labour and stimulates the ejection of milk into the ducts of the breasts.

HCG: A hormone produced in the human placenta that maintains the corpus luteum during pregnancy.

Prolactin: Hormone that stimulates the breast to produce milk to breastfeed. Prolactin also inhibits ovulation.

Testosterone: A steroid hormone that stimulates development of male secondary sexual characteristics, produced mainly in the testes, but also in the ovaries and adrenal cortex.

 

5. a) 12 is the most common age at which boys undergo the changes of puberty.

b) No, It would be a cause of concern if she were about to turn 16 or 16 years old.

c) The features of puberty that show the greatest range in the times at which they  occur are the first menstrual period, the testes enlargement and the growth of pubic hair.

d) It is unusual, but other hormones will be secreted anyway.

e) On average, it is the girls  that first show the onset of puberty.

 

Poem “Rooms” and “Home is so sad”

“Rooms”

I remember rooms that have had their part

  In the steady slowing down of the heart.

The room in Paris, the room at Geneva,

The little damp room with the seaweed smell,

And that ceaseless maddening sound of the tide—

     Rooms where for good or for ill—things died.

But there is the room where we (two) lie dead,

Though every morning we seem to wake and might just as well seem to sleep again

     As we shall somewhere in the other quieter, dustier bed

     Out there in the sun—in the rain.

 

“Home is so sad”

Home is so sad. It stays as it was left, Shaped to the comfort of the last to go As if to win them back. Instead, bereft Of anyone to please, it withers so, Having no heart to put aside the theft And turn again to what it started as, A joyous shot at how things ought to be, Long fallen wide. You can see how it was: Look at the pictures and the cutlery. The music in the piano stool. That vase.

Activity 2

You can find my poster by clicking here!

Virtual period: Reflex arcs

a)

b) (I am having problems with my phone but i will upload the video as soon as i can borrow one to film the video, sorry!)

c)  stimuli= a lit candleclose to our hand

receptor= the skin in our hand

coordinator= Central Nervous System (spinal cord and neurones)

effector= arm muscles (cuadricep and tricep)

response= the arm bends immediately to avoid the candle

Ensayo sobre el lenguaje

El lenguaje es un recurso esencial para el dia a dia de todo el mundo. Constantemente estamos hablando, pensando y tomando decisiones, pero, hasta qué punto es el lenguaje algo tan bueno?… Para responder esta pregunta, primero debemos analizar si somos tan dueños de nuestros silencios y esclavos de nuestras palabras.

Como primera instancia, me parece importante mencionar que también somos responsables de nuestras palabras. Una vez que decimos algo, debemos afrontar las consecuencias. Nosotros elegimos que decir, asi sea para bien o para mal, por lo tanto, me parece de  suma importancia aclarar, que por más que se discuta que  somos esclavos de nuestras palabras porque son ellas quienes no hacen quedar mal aveces o lastimar a alguien o a uno mismo, debemos adueñarnos de la situación y arreglarlo inmediatamente.

Dicho lo anterior, si creo que hay una excepción, en la que si somos esclavos de la palabras. Esto sucede cuando decimos algo que luego no reparamos o tardamos en hacerlo. Creo que en este caso, las palabras si nos definen y nos convierten en sus esclavos.

Por último cabe mencionar la primera parte de la frase, que hace referencia al silencio de cada persona. Somos dueños de nuestros silencios porque decidimos que callar y que no, pero si uno se lo pone a pensar, es un tanto egoísta, ya que callamos lo que no queremos contar, lo que nos conviene, mientras muchas veces también hablamos los secretos de los demás, o los lastimamos.

En fin, podemos destacar que somos dueños de nuestros silencios y de nuestras palabras, pero aveces, en mencionado caso, estas nos convierten en sus esclavos. Cada palabra que sale de nuestras bocas, tiene consecuencias, por lo tanto debemos hacernos caro de ellas.