🧬 Biochemistry Solved MCQs with Answers

Practice 1490 approved 🧬 Biochemistry questions with verified answers from the 🧬 Medical Science subject for Pakistan exams.

1490 solved MCQs

Which of the following components of a monochromator is the dispersing element?Answer: The diffraction grating A simple harmonic oscillator may absorb energyAnswer: When the frequencies match exactly UV-Vis spectroscopy of organic compounds is usually concerned with which electronic transition(s)?Answer: n → π* and π → π* Vibrational spectroscopy isAnswer: A class of spectroscopic techniques which analyzes molecular motions Why are rotational transitions of little use to a spectroscopist?Answer: Because, in liquids and solids, spectral lines corresponding to rotational transitions are broadened as the result of molecular collisions and other interactions Beer's Law states thatAnswer: Absorbance is proportional to both the path length and concentration of the absorbing species Which of the following mineral is involved in protein metabolism and oxidation reactions?Answer: Molybdenum Which of the following mineral deficiency may result into impaired growth and development, skin lesions and loss of appetite?Answer: Zinc Which of the following is not a function of iron?Answer: Gene regulation Consumption of which nutrient leads to the multiplication of oral bacteria?Answer: Carbohydrate Examples of goitrogenic foods are __________ and __________ .Answer: Raw cabbage and turnips Which of the following carbohydrate is effective in promoting the calcium absorption?Answer: Lactose What condition is caused by iodine deficiency during pregnancy and is characterized by stunted growth, deafness, and mental retardation?Answer: Cretinism Iodine is a part of thyroid hormone and is essential for the prevention ofAnswer: Goiter What transports copper from the intestinal cells to the liver?Answer: Ceruloplasmin Which group is most often affected with copper deficiency?Answer: Elderly woman What is the main source of natural fluoride?Answer: Water Which of the following mineral is involved in the enzyme -controlled energy yielding reactions of metabolism?Answer: Phosphorus The mineral which aids in the utilization of iron and in hemoglobin synthesis isAnswer: copper The mineral which is considered important in maintaining electrical potential in nerves and membranes isAnswer: Magnesium Wilson's disease is an example of __________ and Menkes' syndrome is an example of __________ .Answer: copper toxicity; copper deficiency Which of the following is correct?Answer: Both (a) and (b) Which of the following is required as a component of blood hemoglobin?Answer: Iron Adding __________ to a breakfast of cereal will help your body absorb iron.Answer: Orange juice Which of the following ion is required for the development of sound teeth with resistance to tooth decay?Answer: Fluoride ion Which of the following two beverages contribute 20 to 30 percent of our daily manganese intake?Answer: Milk or tea An endemic disease of cardiomyopathy in children is attributed toAnswer: Low Se in the environment Which of the following statement is correct?Answer: All of the above Which of the following is necessary for the clotting of blood, functions of certain enzymes and control of fluids through cell membranes?Answer: Calcium Selenium deficiency leads toAnswer: Liver necrosis