1) which of these fatty acids (10:0; 14:0; 18:0; or 20:0) would have the highest
ID: 181142 • Letter: 1
Question
1) which of these fatty acids (10:0; 14:0; 18:0; or 20:0) would have the highest solubility in water? A) 18:0 B) 16:0 C) 14:0 D) 10:0 E) they would all have equal solubilities as they are all hydrocarbons2) which of the following combinations would result in the lowest affinity of hemoglobin for oxygen? A) low pH and high 2,3-bisphoglycerate B) high pH and low 2,3-bisphoglycerate C)low pH and low 2,3-bisphoglyceratr D) high pH and high 2,3-bisphoglycerate E) A and B will result in equally low affinity
3) which of the following statements about RNA is FALSE? A) RNA is less stable then DNA B) RNA is generated from a DNA template in a process called translation C) there are several types of RNA including mRNA, rRNA, tRNA D) a single strand of RNA can hybridized to a single strand of DNA if they have complementary sequences E)all of the above
4)DNA and RNA are structurally distinct in: A) the nature of the linkage joining sequential nucleotides on the same strand B) whether the sugar group is in linear or cyclized form C) the nitrogenous bases are linked to different carbons of the sugar group D) the presence or absence of a hydroxyl group on the 2' carbon of the sugar group E) none of the above are correct
1) which of these fatty acids (10:0; 14:0; 18:0; or 20:0) would have the highest solubility in water? A) 18:0 B) 16:0 C) 14:0 D) 10:0 E) they would all have equal solubilities as they are all hydrocarbons
2) which of the following combinations would result in the lowest affinity of hemoglobin for oxygen? A) low pH and high 2,3-bisphoglycerate B) high pH and low 2,3-bisphoglycerate C)low pH and low 2,3-bisphoglyceratr D) high pH and high 2,3-bisphoglycerate E) A and B will result in equally low affinity
3) which of the following statements about RNA is FALSE? A) RNA is less stable then DNA B) RNA is generated from a DNA template in a process called translation C) there are several types of RNA including mRNA, rRNA, tRNA D) a single strand of RNA can hybridized to a single strand of DNA if they have complementary sequences E)all of the above
4)DNA and RNA are structurally distinct in: A) the nature of the linkage joining sequential nucleotides on the same strand B) whether the sugar group is in linear or cyclized form C) the nitrogenous bases are linked to different carbons of the sugar group D) the presence or absence of a hydroxyl group on the 2' carbon of the sugar group E) none of the above are correct
A) 18:0 B) 16:0 C) 14:0 D) 10:0 E) they would all have equal solubilities as they are all hydrocarbons
2) which of the following combinations would result in the lowest affinity of hemoglobin for oxygen? A) low pH and high 2,3-bisphoglycerate B) high pH and low 2,3-bisphoglycerate C)low pH and low 2,3-bisphoglyceratr D) high pH and high 2,3-bisphoglycerate E) A and B will result in equally low affinity
3) which of the following statements about RNA is FALSE? A) RNA is less stable then DNA B) RNA is generated from a DNA template in a process called translation C) there are several types of RNA including mRNA, rRNA, tRNA D) a single strand of RNA can hybridized to a single strand of DNA if they have complementary sequences E)all of the above
4)DNA and RNA are structurally distinct in: A) the nature of the linkage joining sequential nucleotides on the same strand B) whether the sugar group is in linear or cyclized form C) the nitrogenous bases are linked to different carbons of the sugar group D) the presence or absence of a hydroxyl group on the 2' carbon of the sugar group E) none of the above are correct
Explanation / Answer
1.D 10:0
As the chain length of fatty acids increase, the solubility decreases. So short chain fatty acids are more soluble in water.
2.A
Acidity i.e; low pH and high 2,3-bisphoglycerate shifts the curve to right, i.e; low affinity to oxygen.
3.B.
RNA is generated from a DNA template in a process called Transcription. NOT translation.
4. D) the presence or absence of a hydroxyl group on the 2' carbon of the sugar group.
DNA has deoxy ribose whereas RNA has hydroxyl group present at 2l carbon of the pentose sugar Ribose.
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