The pH optimum? How would you classify the phosphatase activity found in your extract? The temperature optimum was 55 degrees Celsius. The pH optimum was 5. The phosphate activity found in our extract would be acidic because the pH is low.
The buffer checks out because pH=pKa ± 1.0. Results: Phosphate buffer: The initial pH for the phosphate buffer is 6.83 and it takes 18 drops to equal 1.0 mL of 1.0 M HCl. The volume of HCl required to break the buffer was 1mL, and the known concentration of the HCl 1.0 M The number of moles of HCl consumed by the buffer was 0.02. [pic] Acetate buffer: The target pH of NaCH3CO2 was 5.25 and the actual measured pH for the acetate buffer was 11.21. The number of drops to equal 1Ml of NaOH is 17 drops.
12: Hydrolysis reactions ARE EXOTHERMIC 13: If a molecule is described as "organic," this means it CONTAINS CARBON AND HYDROGEN 14: Glucose is a sugar with six carbons. This makes it a HEXOSE Hexoses (sugars with six carbons), such as glucose, play a vital role in the metabolism of all cells. 15: A proton is an atomic particle with a POSTIVE CHARGE 16: Pasteur made major contributions to the study of which of the following? FERMENTATION 17: Which of the following is NOT associated with the structure of fats? PEPTIDE BONDS 18: Members of which of the following groups are
bioloQuiz 9 Chapter 10 Question 1 Wastes are part of blood True False 2 points Question 2 A hematocrit is the % of ________________ 1. leukocytes 2. eythrocytes 3. platelets 4. clotting factors 2 points Question 3 Normal hemotocrit is ___% erythrocytes of total volume 1. 50 2. 40 3. 30 4. 45 2 points Question 4 The protein in blood that regulates osmotic pressure and pH is albumin True False 2 points Question 5 All of the following are PLASMA blood proteins EXCEPT 1. albumin 2. hemoglobin 3. fibrinogen 4. globulin 2 points Question 6 Which element in hemoglobin binds oxygen 1. calcium 2. zinc 3. iron 4. iodine 2 points Question 7 How many red blood cells in blood and how many white blood cells?
What is the identity of your unknown? Justify your conclusion by comparing the observed molecular weight and pKa values to those for all amino acids that might have been your unknown. B) Examining the effect of ionic strength on the pKa of a weak acid. Restandardize the pH meter with both pH 4 and pH 7 buffers. Why is this necessary?
The reaction with pH 7 was used as a control. Each tube contained 1 ml of potato extract, 6 ml of pH buffer, and 3 ml of catechol. Tubes were covered in parafilm and mixed thoroughly as each reagent was added. For each tube, catechol was added last to prevent the reaction from beginning prior to data collection, and each reaction was conducted in triplicate. To determine the amount of benzoquinone produced, a color chart corresponding to benzoquinone concentration (Figure 1) was used
Since, the diet helps keep weight down and it is high in fiber which lowers blood sugar levels. Getting enough iron is the biggest concern for vegetarians. However, eating food like legumes, tofu, green leafy vegetables, nuts, seeds, whole grains, and dried fruits can provide iron. Vegetarians can take an iron supplement as another option. Vitamin B12 is a vitamin only found in animal products.
Solutions with a pH value below 7.0 are considered acidic, whereas solutions with pH value above 7.0 are basic. As most naturally occurring organic compounds are weak protolytes, carboxylic acids and amines, pH indicators find many applications in biology and analytical chemistry. Moreover, pH indicators form one of the three main types of indicator compounds used in chemical analysis. For the quantitative analysis of metal cations, the use of complexometric indicators is preferred, whereas the third compound class, the redox indicators, are used in titrations involving a redox reaction as the basis of the analysis. Contents [hide] 1 Theory 2 Application 3 Commercial preparations 4 Naturally occurring pH indicators 5 See also 6 References [edit]Theory In and of themselves, pH indicators are frequently weak acids or weak bases.
Gas can also be used as a medium, but from an engineer’s point of view it is almost non-compressible fluid, therefore can store a lot of energy, and can be extremely hazardous with the failure of the pressure container. However water can store much less energy, thus risks from explosions are significantly lowered. HPP maintains the quality, freshness of the food and also extends its self-life. The process is also known as high hydrostatic pressure processing (HHP) and ultra high-pressure processing (UHP). Since most common ways of killing bacteria is by heat treatment, which can reduce product quality, by eliminating thermal processing, HPP has a minimal effect on the freshness of foods, resulting in better taste, nutrition content, and appearance, thus technology is extremely beneficial for heat sensitive products.
We examined the nutrient content of seven different animal feeds. These feeds included broiler starter and broiler finisher for chickens, layers mash for laying hens, maxi piglet for young pigs, turbo pig finisher for older pigs, lacto 16 for milk producing cows and beef maker for cows reared for meat. The dry matter content of the feeds was roughly 85%. This means each feed had a water content, or moisture, of about 15% Crude Protein: Protein is an essential part of an animal’s diet. It accounts for about 20% of each feed and is the second most abundant component of the feeds we tested, after carbohydrates.