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Constipation can be treated by eating more vegetables. This is because: A. Some

ID: 93607 • Letter: C

Question

Constipation can be treated by eating more vegetables. This is because: A. Some macromolecules found in plant cells cannot be broken down by human proteins, allowing them to push through the digestive system in their original form. B) Plants contain starch, which the digestive system uses to create ATP and aid in digestion. C) Plants contain a surplus of water which aids in digestion. D) Plants contain enzymes that the breakdown the macromolecules humans synthesize. E) None of the above. Consider a fat that is solid at room temperature. Knowing this information which of the following statements is FALSE? A) Triglycerides within this fat cannot be unsaturated, since double bonds do not allow tight packing. B) Triglycerides within this fat may contain long hydrocarbon tails, that can form hydrophobic interactions. C) Triglycerides within this fat will contain minimal or no cis bonds, since those bonds promote fluidity at room temperature. D) Triglycerides within this fat may be saturated, this allows them to pack tightly and form hydrophobic interactions. E) There is more than one false answer above. Movement of vesicles within the cell depends on what cellular structures? A) actin filaments and ribosomes B) microtubules and motor proteins C) actin filaments and motor proteins D) actin filaments and microtubules E) intermediate filaments and motor proteins All of the following biological molecules are assembled through dehydration synthesis EXCEPT? A) Two amino acids forming peptide bonds. B) Fatty acids combining with glycerol to form triglycerides. C) Two nucleotides forming a phosphodiester bond along the sugar-phosphate backbone. D) Two glucose molecules forming a glycosidic linkage to form a disaccharide. E) There are no exceptions above. Which statement regarding nucleic acids is TRUE? A) A single strand of RNA is less polar than a single strand of DNA. B) A nucleoside contains a base, sugar and one phosphate group while a nucleotide contains a base, sugar and three phosphate groups. C) ATP contains a hydroxyl group attached to the 2 carbon. D) RNA can have a pyrimidine attached to 1' carbon but can not have a purine attached to the 1' carbon E) There are no true statements above.

Explanation / Answer

1) Constipation can be treated by eating more vegatables because plants contain main dietery fibers like pectin, lignin, cellulose and hemicellulose. These dietary fibers are not digested by the enzymes present in human body. They constitute bulk of the stool. They combine with water and fat molecules. Vegetables contain large amount of these dietary fibers. So, the correct answer for this question is option (A) some macromolecules found in plants cannot be broken down by the human proteins allowing them to push through the digestive system in original form.