Home⇒ Medical Science⇒ Biochemistry⇒ Water ph and macromolecules
| 1-Dont try to cram or spend more time here just read it fast and cover syllabus then practice MCQ's cheptor of same topic to check your progress. . |
| 2-Wrong options are also given but dont concentrate there, Right answer is in bold format. |
| Q1 ⇒ Which of the following indicates that the pK of an acid is numerically equal to the pH of the solution when the molar concentration of the acid and its conjugate base are equal? Henderson-Hasselbalch equation [other wrong options] [Discuss in forum] |
| Q2 ⇒ If protein is made exclusively from nonpolar amino acids, then it will this protein interact with water? be repelled by water [other wrong options] [Discuss in forum] |
| Q3 ⇒ Which of the following statements about water is correct? All of the above [other wrong options] [Discuss in forum] |
| Q4 ⇒ Which of the following organic groups are found in naturally occuring amino acids? All of these [other wrong options] [Discuss in forum] |
| Q5 ⇒ The elements oxygen, nitrogen, and carbon All of the above [other wrong options] [Discuss in forum] |
| Q6 ⇒ Most of the important functional groups in biological molecules contain oxygen and/or nitrogen and are polar [other wrong options] [Discuss in forum] |
| Q7 ⇒ H2O and CH4 are both examples of molecules [other wrong options] [Discuss in forum] |
| Q8 ⇒ Weak acids generally have pKa pKa values greater than 2 [other wrong options] [Discuss in forum] |
| Q9 ⇒ Buffer solutions tend to maintain a relatively constant pH. [other wrong options] [Discuss in forum] |
| Q10 ⇒ The effectiveness or capacity of a buffer solution can be affected by both (a) and (b) [other wrong options] [Discuss in forum] |
| Q11 ⇒ Which of the following character does not apply to water? The water molecule readily forms hydrophobic interactions [other wrong options] [Discuss in forum] |
| Q12 ⇒ The pH of a solution is determined by relative concentration of acids and bases [other wrong options] [Discuss in forum] |
| Q13 ⇒ Which of the following alcohols would be most soluble in water? methanol [other wrong options] [Discuss in forum] |
| Q14 ⇒ A solution with pH = 5 is __________ than a solution with pH = 7. 100 times more acidic [other wrong options] [Discuss in forum] |
| Q15 ⇒ The main difference between an acid and a base is that acids donate hydrogen ions in water while bases accept hydrogen ions [other wrong options] [Discuss in forum] |
| Q16 ⇒ Salt dissolves well in water as water molecules surround the ions because of their charge but do not form hydrogen bonds [other wrong options] [Discuss in forum] |
| Q17 ⇒ A biological polymer contains alanine, tyrosine, and lysine. Which of the following will be true about this molecule? Protein [other wrong options] [Discuss in forum] |
| Q18 ⇒ Which of the following statements about covalently bonded molecules is false? Such molecules often result from the interaction of ionized atoms [other wrong options] [Discuss in forum] |
| Q19 ⇒ Polyprotic acids such as H3PO4, can act as acid-base buffers at pH values around any of their pKa's [other wrong options] [Discuss in forum] |
| Q20 ⇒ What is the concentration, in moles/liter, of the hydrogen ion, if pH of a solution is 7? 1 x 10-7 [other wrong options] [Discuss in forum] |
| Or |