Levi Bourland Mrs.black Biology 10-6 10/6/16 Egg Lab Background info: hypertonic solution was used in the lab, hypertonic is the liquid substance that is going out of the egg. When a red blood cell has more water than what's outside then the water will come out and will become smaller. Hypotonic is when the water on the outside of the cell has more water than the inside, the water will go in the inside to make it run smoothly. Isotonic is when the inside and outside of the cell is each, they will stay the same. Question: which type of substance will rehydrate the dehydrated egg the best? Hypothesis: the Lemmon juice will rehydrate the cell the best. Justification: the lemon will hydrate the cell by the sugar that it will reform
a little of its shell. The sugar of the Lemmon is sticky so it will make the egg stay. Discussion : when the vinegar was added to the egg, the shell disappeared. Rubbing alcohol made the cell decrease in mass. When a variety of liquids were added to the egg, the egg either increased or decreased in mass. After the corn syrup was added to the egg, the egg decreased in mass. Fruit punch, Gatorade, lemon juice, soda, and salt water all made the cell increase in mass. The liquid that made the cell increase in mass the most was fruit punch, it did this because it had a greater concentrated gradient. The best hydrated from greatest to least is fruit punch, salt water, lemon juice, Gatorade, soda, and lastly rubbing alcohol. The liquid that was most hypertonic was the rubbing alcohol because it deflated the egg the most. An error that could have secured was that the groups could have used different amounts of liquid. Also there could have been a lack of precise measurement.
The purpose of this project was to understand the forces, momentum, and energy a contraption would experience during an impact from a pendulum at 5, 10, 15, 20, and 25mph. The project was required to hold and protect 2 raw large Grade A eggs from each pendulum impact respectively.
5. Place a tiny pinch of egg cysts onto a large sheet of white paper.
Step 3: Q5. The salt that was placed on the egg turned into ‘sweat’ like beads on the egg. Q6. There is a higher water concentration inside the egg, causing the water to travel through the egg to the salt. The salt creates osmotic pressure on the water molecules in the egg.
1. In response to light, phytochrome undergoes a change in shape that leads to the activation of
The purpose of this lab was to show us what will happen when we soak the egg in the tap water overnight. When we soaked the egg in the tap water overnight, the egg appeared to be swollen. The egg also gained mass because the egg has less water concentration.
During the first day, we weighted the egg and put the vinegar in the cup. Then, we let the vinegar sit on the egg for 24 hours. The next day ,day 2, we spilt out the vinegar ,and added distilled water. We also weighted the mass of the egg ,and described the appearance of the egg on the data chart.
In the article “Egg Heads”, the writer Kathryn takes the time to address the controversial topic of in-vitro fertilization. In the begin she assumes that the readers are somewhat knowledgeable about IVF; however, she implies that the audience are only informed about the sweet side of the mater. She assumes that no one has really taken the time to explore the darker bitter side of the matter. Throughout this article Lopez explains how egg donation and in-vitro fertilization is getting out of hand. Her goal in writing this article to persuade readers to take a stance against egg donations through the education of the donor process and education on the dangers that takes place within a woman’s health, family, and societal views. Kathryn achieves this goal mainly through the successful use of pathos and logos.
Pigeon’s Egg Head (The Light) Going and returning from Washington was painted by George Catlin in 1837-39. It is a 29 x 24 inch oil painting on canvas, which is a medium size picture that anyone can mount on their modest wall. The two men facing in opposite directions from each other are the most visible figures from a distance. But if one is to look carefully close to the artwork, he or she will notice small details which are positioned to help the viewer communicate with the subject of the painting and the fact that the subject is one instead of two persons. The colors are not very bright, nor are they very dark. They are just right in between. This painting portrays the extraordinary changes an Assiniboine warrior underwent by comparing
One of the most common sensations in all humans is that of stress. This may be induced by everything from more serious life-or-death situations, to more mundane concern over deadlines or relationships. The body has a somewhat graded response to these events depending on their severity, but its response, regardless of severity, is rooted in the same neuroendocrine response of the hypothalamic-pituitary-adrenal axis (HPA Axis). This response is characterized by the feedback interactions and influencing of three of the bodies endocrine glands: the hypothalamus, the pituitary gland, and the adrenal glands (1). In response to stress, the hypothalamus releases corticotropin-releasing factor (CRF), which travels through the hypophyseal portal system
the gain or loss of water when samples of the tissue are placed in a
The aim of the experiment is to better understand the process and stages of mitosis. Prepare specimens of onion root in order to visualize all stages of mitosis, and estimate the relative length of each stage of mitosis.
Before the egg was submerged, it appeared as a typical egg with an average weight and size. When placed into the vinegar, no immediate changes or effects were noticeable. Later, after 24 hours the egg had changed significantly. The colour of the egg was much more yellow, and had noticeably increased in size. Almost the entire shell dissolved into the vinegar. One part of the egg, which had not been sunken into the vinegar, still had an area of shell still attached. The texture of the egg was very rubbery.
Meiosis, or reductional division, is the process during which exchange of genetic material between the homolog chromosomes (crossing-over and recombination) takes place and such a division of the genetical material occurs the four daughercells.
This experiment is conducted to test whether or not temperature can affect the fluidity of a cell membrane. By changing the temperatures to 0ºC, 20ºC, 50ºC, 70ºC and 100ºC, this should show that temperatures that are too low can cause it to solidify and temperatures that are too high can cause it to become more fluid or even break up. Cells are the main unit of organization in biology. All cells are contained by a cell membrane that keeps the pieces inside.
fluid for you. You can check the count on a hemacytometer if you want, but no one does