The enzyme amylase will catalyze the hydrolysis of starch to maltose when the pHis near 7.0. But when the HCl is added to the solution the amylase will bedenatured which results in the enzyme being deactivated. The iodine serves as anindicator for the presence of starch. Iodine (I2) will reach Read more…
As chemistry students, we usually talk about pH when using universal indicator in the lab to determine the pH of certain substances but in reality we are exposed to pH on a daily bases.Before we understand how pH affects our lives, it is vital to understand the meaning of this Read more…
Elizabeth: Good, I am glad I found you here. It seems you are finally getting comfortable with our ways.Sara: Yes, well I have slept so good these past two nights that I woke up rather early this morning. I usually don’t even eat breakfast at home, but everything is so Read more…
Earthquakes The earth consists of four major sections: the inner core, outer core, mantle, and crust. The crust is the top-most part, but is not a single piece, rather, it is made up of several pieces, like a jig-saw puzzle. The pieces keep moving gradually, slipping past one another and Read more…
What I find most admirable about AlbertEinstein is the way he thought up his theoriesand had the ability to conduct experiments onthem. By doing this, he answered manyquestions of the scientific realm of the world.Some of the traits I admire are:1. A trait I admire is his curiosity because healways Read more…
BiasWhat does the word bias mean? Bias is a mental predilection orprejudice. The essay “The View from the Bottom Rail” by James West Davidson andMark Hamilton Lytle opened my eyes on how American history could be looked at asone sided and even bias. Even today there is still bias in Read more…
Neither the Census Reports, nor the Directorate – General of Employment and Training [D.G.E.T], nor the Employment Exchanges nor any other agency, could give any dependable quantitative estimate of the magnitude of the problem. The statistics which we obtain through these three sources cannot be considered as highly authentic and Read more…
Essay on EvolutionThere are many mechanisms that lead to evolutionary change. One of themost important mechanism in evolution is natural selection which is thedifferential success in the reproduction of different phenotypes resulting fromthe interaction of organisms with their environment. Natural selection occurswhen a environment makes a individual adapt to that Read more…
Hypotheses about the Origin of Planets 1. Nebula Hypothesis: There are many hypotheses about the origin of earth and planets. But the hypothesis propounded by Laplace a french mathematician, is most popular. According to him, a giant slowly rotating cloud of gas and dust (or say nebula) with swirling motion Read more…
English Comp I09/13/04Gun Control vs. Gun RightsThe author discusses the issue of gun control vs. gun rights. Hestates “gun rights organizations have been more successful than guncontrol organizations because they have been paying off and supporting alot more important people than the gun control organizations.” He “that gunrights organizations, like Read more…
Research Question: What effects does different concentrationsof hydrogen peroxide (0%,5%,10%,15%,20%,25%,30%) have on time taken for 20cm3 ofoxygen to be made? Background Information:Enzymesare proteins that function as catalysts for chemical reactions that occur inliving cells. An individual enzyme can only accelerate the reaction of only onechemical reaction (Mäntsälä et al.). Nonetheless, Read more…
Scientific Communication and Laboratory Skills LabReport Abstract Bradfordprotein assay and direct ultraviolet absorption (UV light) were performed onunknown samples. These two methods were performed to determinate theconcentration of the unknown samples. The Bradfordassay is colorimetric assay depends on the reaction between Coomassie brilliantblue and the aromatic residues in the protein. After the dye react Read more…
It is quite obvious that holding an office, may, at the same time, give an individual, a status. The kind of status it gives depends upon the importance of the organisation of which office is a part. The status also depends on the importance of this particular office within the Read more…
15 Questions with Answers and Explanations on “Biotechnology” for Biology Students: Q. 1. Define biotechnology according to European Federation of Biotechnology (EFB). Ans. According to EFB—biotechnology is the integration of natural science and organisms, cells, parts thereof, and molecular analogues for products and service. Q. 2. Define genetic engineering. Ans. Read more…
Q. 1. Expand the term LAB. Ans. LAB—Lactic Acid Bacteria. Q. 2. Mention any two benefits of lactic acid bacteria. Ans. 1. Helps in formation of curd from milk. 2. Checks disease causing, microbes in our stomach. Q. 3. How is ‘Roquefort cheese’ ripened? Ans. It is ripened by growing Read more…
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