Terpenes and are biosynthesized from which lipids? A. isoprenoids. B. wax esters

Question

Terpenes and are biosynthesized from which lipids? A. isoprenoids. B. wax esters C. sphingolipids D. phospholipids E. triatylglycerols The prosthetic group on sphingolipids are: A. amino acids B. a peptide C. carbohydrates D. a heme group E. zinc Neutral lipids are normally associated with which purpose: A. signaling B. structure C. catalysis D. energy E. information storage The active transport of solutes across a membrane is typically coupled to which type of reaction? A. exergonic B. endergonic C. non-spontaneus D. entropically negative E. exothermic The membrane spanning portions of transmembrane proteins are often composed of what type supersecondary and/or 2" structures? A. beta-barrels & alpha-helices B. Greek key & beta turns C. beta-barrels & Greek keys D. double helices and alpha-helices E. beta-meander and alpha-helices Which of the following statements best describes the Na-glucose transporter of the intestinal epithelia? A. The active transport mechanism transports both glucose and Na into the intestinal lumen. B. The passive transport mechanism transports both glucose and Na into the intestinal lumen. C. The active transport mechanism transports both glucose and Na into the intestinal epithelia. D. The active transport mechanism transports glucose into the intestinal epithelia and Na into the intestinal lumen. E. The passive transport mechanism transports glucose into the intestinal epithelia and Na into the intestinal lumen. At low temperatures, bacteria will increase the number of _____ lipids in their membranes order to increase the fluidity, or liquid nature, of the membrane. A. saturated B. unsaturated C. glyco- D. poly- E- shorter that contains cyclic ether functional groups are known as _____ A. prostaglandins B. leukotrienes C. thromboxins D. cyclic lipids E. lipocyclams Which enzyme catalyzes the transverse diffusion of lipids? A. lipidase C. switchase D. flippase Peripheral proteins typically use which type of amino acids to bind to the surface of a lipid bilayer? A. non-polar B. polar C. basic D. acidic E. cystine Which reagent is needed for the removal of transmembrane proteins from a lipid bilayer? A. low pH, HCl B. high pH, NaOH C. detergent D. NaCl E. Urea Which functional group holds together the nucleotide units in DNA? B. phosphate C. hemiacetal D. ester E. amide Which of the following metabolic processes occurs in the nucleus? A. ETC B. transcription C. glycolysis D. glycolysis E. oxidation There are approximately how many base pairs/turn in B-DNA? A. 8 B. 9 C. 10.5 D. 11 E. 3.4

Explanation / Answer

Answer to ques 33

Two nucleotides(monomers of DNA) are joined together by 5`-3` phosphodiester bond to form the DNA polymer. So the answer is a)phosphodiester which holds two monomeric nucleotides in a DNA and subsequently forms the polymer.

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