Biochemistry Quizzes Online & Trivia

1. adenohypophysis-the correct answer is a. the adenohypophysis is not related to the pathology of diabetes insipidus.answer b is incorrect. d1 receptors are not involved in nephrogenic diabetes insipidus.answer c is incorrect. this is nephrogenic, not central, diabetes insipidus.answer d is incorrect. the v1 receptor is involved in vascular smooth muscle contraction.answer e is incorrect. this scenario describes nephrogenic diabetes insipidus, which is pathology at the antidiuretic hormone receptor in the kidney. this receptor is the v2 receptor.

C is the answer to this. The urine sample is showing signs of triple phosphate. There are different reasons why this may appear in the urine. This may happen when a person has ingested certain types of food. There are also instances when this will show that the person is suffering from a urinary tract infection. There are times when people are not too concerned about the crystals that appear in urine because they feel that this is not too serious. There are still a lot of things that may be evident when urine is checked. Doctors should always be more open-minded about the results that will be received.

The answer to this is 5.93mM. It can sometimes be challenging to compute for this when you do not know the proper method to use. This is always the first step. Select the best method that you think will be most effective in computing for the protein. Some of the possible methods are the Bradford Method or the Lowry Method. Another method that you can use is to compare it to a standard curve which means that you are going to create your own method for protein concentration. Once you have already figured out the best method, the computation will not be hard do anymore.

1. PhosphorusLipids have C, H, and O. nucleic acids have C, H, O, N, and P.

It is unfolding of protein structure including secondary, teritary and quaternar strctures except the primary one due to presen of strong peptide (covalent) bond.

The correct answer to this question is D, Increase the temperature by 10 C. At first, when a substrate concentration increases, so will the rate of the enzyme-catalyzed reaction, when substrate saturates the enzyme molecules, an increase in the reaction rate decreases. Enzyme-catalyzed reactions are known to increase when the enzyme concentration increases. A low temperature, like 10 C, will increase the rate of the response. The high temperature would decrease the frequency of reaction, which will also limit its activity. Many activities can be done to understand this concept, and the substrate must be present at a high amount for it to be effective.

Increase the temperature by 10 CIncreasing the temperature will make the molecules move faster, thus increasing the amount of collisions between substrate and enzyme. all the other three decrease rate: reducing the amount of substrate or enzyme reduces chances of collison, while changing the pH more than 1 number will most likely cause the enzyme to denature.

1. methionine-the correct answer is c. the key to answering this question correctly is an understanding that phosphatidylcholine is formed by donation of methyl groups. methionine is the only amino acid listed that can donate methyl groups. its activated form, s-adenosyl-l-methionine, is a very common methyl group donor.answer a is incorrect. asparagine is an essential amino acid with a negative charge. it can serve as a hydrogen ion recipient.answer b is incorrect. histidine is an essential amino acid with a positive charge. it can serve as a hydrogen ion donor.answer d is incorrect. threonine is an essential amino acid with an uncharged polar side chain. it contains a hydroxy group that can serve as a hydrogen ion donor or recipient.answer e is incorrect. valine is an essential amino acid with a hydrocarbon side chain; however, it is not a methyl group donor.

The correct answers to this question are glucose and starch. The primary function of glucose is to create energy. It is stored in the body as glycogen. This energy is necessary for the cells to carry out their biological and metabolic functions. They also help the cells and blood flow during exercise. Another essential function of glucose is to keep blood sugar levels steady and consistent. For glucose to perform this function, starch is necessary. Carbohydrate is stored as glycogen. When digestion occurs, starch is then converted into glucose. From there, glucose can carry out its essential functions.

Hemolysis is known to be the destruction of the RBC of the blood. When this occurs, test results would show an elevated LDH which means that the correct answer is D. LDH is also known as Lactate Dehydrogenase. This is a type of analyte that is found in small quantities when the blood is tested. When the results are high, this may signify that there is tissue damage somewhere. This may prompt the physician in order more tests to determine what the cause is of the abnormally high LDH levels. Some levels will indicate what organ tissue is specifically damaged. For those with cancer, a high LDH means that prognosis is going to be poor.

All of the enzymes are occupied by substrates

ProteinIf you dont recall the structure (amino acid), look at the elements: C, H, O, and N. thats protein.