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Effect of lipid solubility on permeability of plasma membrane

1. Stop the timer promptly as soon as the ‘X’ print on the paper is clearly visible as can be seen in control experiment to ensure the time recorded is more accurate. 2. Measure all the 5 solutions properly using measuring cylinder, so that all the solution used are relatively of the same amount. Ensure the eyes’ of observer are perpendicular to the scale of measuring cylinder to minimize pa...

The Muscular System And The Different Fibre Types

Athletes who compete in these tend to have more type 2b fibres than any other type of fibres, which means they have a high anaerobic capacity, meaning the lack of oxygen is a problem to these particular fibres. However when competing some athletes pull up with hamstring injuries due to the lack of oxygen going to the muscles. This occurs in the type 1 twitch fibres, which have a low anaerobic capa...

The Biomedical Model

Counseling is another field that often uses a more holistic approach to healing. Proponents of this framework note that, in the biomedical model, a patient looks to an expert for a specific diagnosis and treatment. Many counselors often try not to label patients with a specific condition, and instead help them recognize their strengths and build on their positive traits. The relationship is far mo...

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DNA Sequencing

To proceed with the procedure sue will need to go to the hospital to get treated right away and take antibiotics to cure her disease but antibiotics doesn’t always work with some peoples immune systems. Sue and anyone else she contacted with or know with meningitis symptoms should go to the hospital right away or they can be dead in 24hrs or so. Symptoms of meningitis: fever, vomiting, headache ...

The Sixth Sense: Intuition

The misconception of the sixth sense are mostly simple. Most of the views on the sixth sense have been only enhancements and/or abilities. The fact that animals are so much different than us make it difficult to compare them to us. We live in completely different world so the sense that we have are different, the abilities we obtain are different, and the instinct we develop is different. Look dee...

Metabolism and Thyroid Hormone

Which two patients have hormone levels characteristic of Cushing’s syndrome? Patients 2 and 5 both have high levels of cortisol and low ACTH. 3 Patient 2 is being treated for rheumatoid arthritis with prednisone. How does this information change the diagnosis? The diagnosis would change to iatrogenic or physician induced Cushings syndrome. 4 Which patient would most likely be diagnosed with Addi...

Final Exam: Acids and Enzymatic Reaction

EScience Labs LLC. (2013). Custome Lab Manual: UMUC BIOL 102/103. 12 Chalet-London, MD: eScience Labs LLC: More Than An Experiment, An Experience. Retrieved July 24, 2014. BBC. (2012, June 12). BBC - GCSE Bitesize: Temperature, pH and enzymes. Retrieved July 24, 2014, from http://www.bbc.co.uk/schools/gcsebitesize/science/add_aqa/proteins/proteinsrev3.shtml RCN. (2014, April 18). Enzymes. Retrieve...

Neurophysiology of Nerve Impulses

A nerve is a bundle of axons, and some nerves are less sensitive to lidocaine. If a nerve, rather than an axon, had been used in the lidocaine experiment, the responses recorded at R1 and R2 would be the sum of all the action potentials (called a compound action potential). Would the response at R2 after lidocaine application necessarily be zero? Why or why not? With a compound action potential, t...

Body Atlas

Eight week, with legs and arms growing longer and fingers beginning to develop, also develops an upper lip and nose, and the nipples and eyes are visible. Ninth and tenth week, Bones begin to form in your baby's arms, which now bend at the elbows. The baby's toes also start developing, and his eyelids and ears continue to be formed. At the 10th week, your baby's head gets rounder, the neck begins...

Plate Tectonics Theory

Volcanic activity that does not occur along any plate boundary can be the result of many a fault lines and hot spots beneath the crust. Alfred Wegener’s theory allowed us to gain insight into the potential creation of our tectonic plates and their boundaries. The evidence provided by wegener’s theory and the record of paleo-magnetism upon the ocean floor supported the idea that the tectonic pl...

Allelopathy Lab Report

Other variables that could have possibly affected germination of the seeds, was but are not limited to, the amount of sunlight that was given to the seeds, and or if the liquid was evenly distributed. Although, the group measured out the exact amount of liquid needed for the seedlings, I can only wonder if some of the proteins or nourishments were left in the solid blending in the cheesecloths? In...

Control of Breathing - An Overview

Both systems involve reflexes by stretch receptors which control the rate of breathing and heart rate. Both the control of heart rate and control of ventilation work antagonistically. Stimulation of the heart by the sympathetic system increases the heart rate, but stimulation by the parasympathetic system decreases the rate. The two centres located in the pons involved in the control of ventilatio...

Experiment to Investigate Osmosis in Potatoes

To improve the accuracy of the results I would include more concentrations to find the point of plasmolysis as in my experiment, I did not get to the point of plasmolysis in my experiment, so if I was to extend this experiment, I would investigte a wider rage of concentrations to investigate furthur and increase accuracy. I would also increase the repetitions to 5 per molarity and increase the mo...

Gram Staining

If I performed a gram stain on a sample from a pure culture of bacteria and observed a field of red and purple cocci, and the adjacent cells were not all the same color, I was conclude that the culture was old. If I viewed a gram-stained field of red rods and purple cocci through the microscope, I would conclude that is a mixed culture. A physician might perform a gram stain on a sample before pre...

The Effect of Glucose Concentration

If I were to repeat my experiment I would've done it one more time in order to see whether my results are reliable or not, so the data will be used to compare with my previous data from a previous experiment. To see the difference between the results it will be the best to draw a graph illustrating them, in order to see whether the correlation of my results was negative or positive, it would be a...

Germs: Bacteria, Viruses, Fungi, and Protozoa

When an infected mosquito bites a human, some of its saliva, which contains spores of the parasite, is injected into the bloodstream. Once inside the body, Plasmodium infects liver cells and then red blood cells. Plasmodium grows rapidly within the infected cells and eventually causes these cells to burst at intervals of 48 or 72 hours. When millions of parasite-filled red blood cells burst, they ...

Aldol Reaction

This is a fairly good percent yield with the fact that the experiment was performed on a microscale level. Some product may have been left in the vial or in the vacuum filter. A little loss of product due to technique makes a great difference on the percent yield since it is microscale. I had a melting point of 70 degrees Celsius to 73 degrees Celsius. This is a little low compared to the expected...

Osmosis and celery lab experiment

We can place celery in three different water solutions to observe the effects of osmosis on the celery stalks. Salt will serve as our solute to mix with water to make the water either hypotonic, hypertonic or isotonic. The hypotonic solution will contain less salt so that the amount of water compared to salt will be greater than the amount of water inside the cells (compared to the salt and other ...

Chick Growth Enhancer

The observations in weight, growth, feathers and immune system was made weekly by the researchers. . A digital weighing scale was used to measure the weight while a tape measure was used to determine the growth. The chicks were observed as starters (4-10 days), growers (10-15 days), and finishers (15-21) days. The results obtained regarding performance of the broilers showed that Aloe Vera gel gro...

Nature of Echolocation Mechanism in Bats

Bats are gifted mammals that only use echolocation to detect the environment and their prey in the environment. It is difficult for us humans to understand the complex organization and working of the audio cortex, the emitting organs and neurons of bats. However, the scientists have been successful in understanding the organization of neurons around the cortical areas of the bats using echolocatio...

Comparison Cell Death of Necrosis and Apoptosis

To conclude, both necrosis and apoptosis are forms of cell death. Whilst one is an uncontrollable process, involving random and lethal harm to cells and surrounding tissues, one is somewhat 'programmed' and benefits the cells by removing those that have been affected by an injurious stimuli (such as an infection of lack of blood). Necrosis is a 'messy' process producing gross matter, whilst apopto...

Advantages of Anaerobic Respiration

ATP is a means of storing energy in the form of sugars at the cellular level. Plants cannot keep up the anaerobic respiration process for long, only a few days at most. The parts of the plants that were using this type of respiration eventually die. There are exceptions, such as germinating seeds planted underground and certain species of fungi. Anaerobic respiration is more rapid than aerobic res...

Effect of Nutrient Concentration on Duckweed Plants Growth

Nutrient concentration has a large impact on the population growth of duckweed. When phosphorus is limiting, the growth of Lemna minor is reduced significantly compared to that grown under ideal conditions. Our results agree with this idea because the population grown in a nutrient rich medium had a higher growth rate than the population grown in a nutrient-lacking medium. Lemna minor has the abil...

Cell Analogy of a Mall

Cell Membrane – The cell membrane protects the inside of the cell from outside containments, keeps the cell in contact and maintains its shape. This relates to mall security guards. They’re job is to protect the mall, make sure everything is intact and everybody is safe. Without the cell membrane, containments could enter, the security guards do the same. Without them, bad people or things cou...

Polar Bears

Hunting of polar bears as a food source by certain native people and trade in native handicrafts made from polar bears will also continue. However, importing polar bear products from Canada (where trophy hunting is legal) will be banned. Pollution from man-made kills polar bears also Use for humans past and present- pas was they were hunted for food and fur. Present still hunted but also hunted fo...

Cell Structure

One of the most common prokaryotic cells would be bacteria, they are the smallest cellular organism. It has no true nucleus but it does have a nucleiod region where its DNA is found. It has the flagella for movement on the outside along with the cilia. The cell membrane controls what goes in and out of the bacteria cell. The cell wall protects the bacterial cell and gives it its shape and structur...

Hycanith Macaw vs Bald Eagle

The Bald Eagle was first protected in the U.S. and Canada by the 1918 Migratory Bird Treaty, later extended to all of North America. The 1940 Bald Eagle Protection Act in the U.S., which protected the Bald Eagle and the Golden Eagle, prohibited commercial trapping and killing of the birds. The Bald Eagle was declared an endangered species further restricted commercial uses and increased penalties ...

Cell Organelle

Exceptional organisms have cells that do not include some organelles that might otherwise be considered universal to eukaryotes (such as mitochondria).[29] There are also occasional exceptions to the number of membranes surrounding organelles, listed in the tables below (e.g., some that are listed as double-membrane are sometimes found with single or triple membranes). In addition, the number of i...

Emily Martin: The Reproductive Cycle

It is important that the new curriculum use different language and metaphors to deter from the stereotypical view of the reproduction process. This may at least curb the sexual bias of this subject to future generations. This article reveals how scientific language can create misconceptions about the truth about the sperm and the egg. Martin cautions us about metaphors in science. While many of us...

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