The immune system consists of various protein molecules which are regenerated during cell growth and protein synthesis in SWS. REM sleep initiates brain repair. Infants have a greater proportion of REM sleep than adults, which suggests that REM sleep may be important to brain growth. Siegal suggests that the amount of REM sleep in any animal is proportional to the immaturity of the offspring at birth. For example platypus is immature at birth and has about 8 hours REM sleep, whereas dolphin which can swim from birth has almost no REM sleep, suggesting a
Investigation of Osmosis in Quails’ (Coturnix japonica) Egg Research Question What is the effect of different concentration of sodium hydroxide solution on de-shelled quails’ egg? The concentration of sodium chloride used is 0%, 5%, 10%, 15% and 20%. How does the different concentration of sodium hydroxide solution affect the change of mass of quail’s eggs when the eggs are immersed in each solution and left for more than 24 hours? Variables variables Method of Controlling Independent Concentration of Sodium chloride Solution The concentration of sodium hydroxide solution prepared and used for this experiment is 0%, 5%, 10%, 15% and 20%. Dependent The average change of mass of quails egg The initial mass of each quails’ eggs is weighed and the eggs is weighed again after 24 hours.
DATE: 9th AUGUST 2011 TITLE: INVESTIGATION OSMOSIS IN QUAILS’ (Coturnix japonica) EGG Research Question How does different concentration of sodium chloride solution which is 0%, 5%, 10%, 15% and 20%, affect the mass of de-shelled quail’s eggs after they are immersed in sodium chloride solution for 1 day(24 hours)? Variables Table 1: Independent and Dependent Variables Variables | Units | Range | Independent variable | Concentration of sodium chloride solution | mililitre(ml) | Concentration of 0%, 5%, 10%, 15% and 20%. | Dependent variable | Change in the mass of quail’s egg | gram(g) | Difference between initial and final mass of quail’s egg | Table 2: Controlled Variables and Its Possible Effects On The Experiment. Controlled variables | Units | Possible effects | Time taken of the quail’s eggs are being immersed | Hours | The long time taken of the quail’s egg are being immersed in the sodium chloride solution which is 24 hours is kept constant.This causes the change of mass of the quail’s egg resultant from the osmosis process. | Volume of sodium chloride solution used | Millilitre(ml) | The volume of sodium chloride solution is kept constant so that the water molecules in each solution are the same.
But almond milk has 20% of your daily calcium. Now we can see that soy milk is richer in vitamins that almond milk. Now is time to compare taste and texture. Almond milk even without the vanilla often tastes sweeter than soy milk and has a consistency similar to low fat
* In an average lifetime, a person produces 10,000 gallons of saliva. * The human brain is about 85% water. * The human skin weights 6 lbs. * Cholesterol is used to make sex hormones. * Interesting Facts is that When you fart in a pool, it creates a chemical reaction.
An increase of PH from 3.2 to 4.2 enabled the protection of ascorbic acid levels, without increasing the levels of other enzymes. In this experiment, the amount of vitamin C in orange juice before and after the addition of HCl or NaOH was compared. The research was conducted to determine ways to ensure that the quality of a stored orange juice remains as close as possible to that of an initial juice. The orange juice samples were exposed to different levels of PH over certain time periods and as a result, there was data that help suggest ways to improve/ change storage methods of orange to increase its shelf life and to
The life cycle of a intestinal hookworm infection is that eggs are passed in the stool , and under favorable conditions like moisture and warmth, larvae hatch in 1 to 2 days. The released rhabditiform larvae grow in the feces or the soil , and after 5 to 10 days they become filariform larvae that are infective . These infective larvae can survive 3 to 4 weeks in favorable environmental conditions. On contact with the human host, the larvae penetrate the skin and are carried through the blood vessels to the heart and then to the lungs. They penetrate into the pulmonary alveoli, ascend the bronchial tree to the pharynx, and are swallowed .
How long were you able to still distinguish the drop of food coloring as separate from the water (i.e, not completely mixed) in each glass? a. Warm water: For 2 minutes and 50 seconds b. Cold water: For 4 minutes Osmosis (this activity requires a time-span of 3 days): Read and follow carefully the instructions on pg 49, "Alternative Procedure" (middle of left-hand column). Make sure the egg is submersed in each
Pocholo Panhon Rachel Smith -5 9/29/1999 Enzyme lab conclusion The problem that had was solved by the experiment was whether the pressure of a body was affected by a large amount of H2O2 being absorbed into it. I thought that if the amount of H2O2 (mL) increases then the pressure created by the reaction also increases, because in real life when somebody has a lot of H2O2 absorbed into their bloodstream the blood will start to froth and bubble up and pressure is created from it. To test this hypothesis I used H2O2 solution, blended cow liver, a flask with a pressure sensor hooked up to a laptop, 2 test tube (one for H2O2, and one for the cow liver). For the experiment I put a certain amount of H2O2 in one test tube and 10 mL of cow liver in another, then quickly emptied both contents of the test tubes into the single flask and put on the pressure sensor to figure out how much pressure was created. I did this five times with an amount of H2O2 then changed it by 2 mL higher while keeping the amount of the cow liver the same and continued to do everything else the same.
Hypothesis : When the quails’ eggs are immersed into 0% (distilled water), 5%, and 15% concentration of sodium chloride solution, the final mass of the quails’ eggs will increase. But when the quails’ eggs are immersed into 30% and 45% concentration of sodium chloride solution, the final mass of the quails eggs will decrease. http://www.biologyjunction.com/osmosis_lab_report_sample_4_prea.htm ,visited on 30/8/2012