PH meter

effect of changing the pH of the soil on the germination and growth of mustard peas? Hypothesis: The greatest number of peas will germinate and will grow the most when the pH is 5 or 7. Theory: Enzymes play a vital role in the cells of plants (especially when growing) and enzymes work best when at their optimum pH value. Moreover, all chemical reactions have an optimum pH at which they work best (Howard and Loomis, no date). Generally the enzymes in plants work best at a pH of around 5-7.…

productivity, such as pH and substrate concentration. Every enzyme has a different “optimum pH value” (Factors Affecting Enzyme Activity). If the pH that the enzyme is working in is at this optimum pH value, it will work at its optimum speed. If not,…

The experiment performed provided insight on the importance of acid-base interactions and the pH of solutions that are involved in a variety of aspects including industrial, environmental, and biological contexts. Back titration was used to determine the number of moles of HCl acid that were neutralized by a single tablet of several variations of commercial antacids. In theory, the antacid that neutralized the largest number of moles of acid was found to be the most effective. The results…

are typically measured as the amount of products produced per unit of time for a single given concentration3. Enzyme kinetics can be affected by the concentration of the substrate, the presence of inhibitors, as well as changes in temperature, and in pH. A substrate is known as the substance that is catalyzed by an enzyme2. An increase in substrate concentration leads to an increase in product formation due to a greater amount…

usually be defined by your senses. For example, edible acids usually have a sour taste(4). Bases are more bitter-tasting and unstable(4). But, your senses are not the only ways you could detect acids. Sometimes you have to use measurements like the pH scale to detect if a substance is a acid or a base. Since, acids and bases surround us, it is important know information about them and how to detect them. Before we start measuring acid we have to know what they are. “The word acid comes from…

Temperature is one of the water characteristic or more precisely one of the physical water parameters. Water temperature affects almost all other water quality parameters. It plays a key role in aquatic life and habitations. Thus, the fluctuation of temperature controls what aquatic kind will live and bloom in the water body. Water temperature can also affect “the metabolic rates and biological activity of aquatic organisms”. Therefore metabolic rates of aquatic organisms is directly…

affected by pH; the carboxyl groups have poor reactivity to EDC/NHS at pH <4.5, and NHS-esters are more susceptible to hydrolysis at alkaline pH values [18,19,20,41]. The amidation reaction of NHS-ester with amino groups is known to be most efficient at the pH values between 6 and 8; amino groups exhibit poor nucleophilicity to NHS-ester at low pH because of the formation of protonated amino groups, but amino groups have strong nucleophilicity, whereas NHS esters are unstable at high pH…

Part A: Background Information Acids and bases are very common in today’s society, and they can be found in most households. Acids can be found as by-products of air pollution, concrete cleaner, food flavouring and is produced by the muscle. Bases are found in most cleaning products as ammonia or sodium hydroxide, and they also treat indigestion. There are many ways that acids and bases can be defined by their chemical properties. The Bronsted-Lowry definition states that acids are proton…

multiple trials with the macromolecules and test the pH levels throughout the course of the experiment. Materials and Methods The experimental design for our project was to simulate the digestion of carbohydrates, lipids, and proteins. We had set up trials for the pancreatic enzymes to break down these macromolecules and tested if macromolecule digestion had actually occurred, we also recorded the rate of their digestion by measuring pH levels. In trial 1 of our experiment we had simulated…

body’s pH balance in check is always important this because proper body function can happen and we remain healthy. If your blood pH were to drop below 7.35 you would develop a condition called acidosis. Then depending on the cause of this acidosis whether it be the kidneys or the lungs would determine the kind of acidosis. If it is the kidneys causing the acidosis we would call it a metabolic acidosis, where is if it were the lungs it would be called a respiratory acidosis. Know if your blood pH…