1) which membrane component contains two hydrocarbon tails and a polar head grou
ID: 181082 • Letter: 1
Question
1) which membrane component contains two hydrocarbon tails and a polar head group? A) glycerophospholipids B)sphingolipids C) cholesterol D) intergral membrane proteins E) A and B2) the difference between a ribonucleotide and a deoxyribonucleotide is: A) a ribonucleotide has a lower molecular weight than a deoxyribonucleotide B) a ribonucleotide has an extra hydroxyl (-OH) at C-4' C) a deoxyribonucleotide has an -H instead of an -OH at C-2' D) a ribonucleotide has a pyranose ring, deoxyribonucleotide had a furanose ring E) none of the above
3) which of the following is FALSE? Denaturation of DNA: A) is a reversible process B) requires cleavage of phosphodieser bonds C) is a cooperative process D) occurs at temperatures that are dependent of the nucleic acid sequence E) involves separation of a duplex into two individual strands 1) which membrane component contains two hydrocarbon tails and a polar head group? A) glycerophospholipids B)sphingolipids C) cholesterol D) intergral membrane proteins E) A and B
2) the difference between a ribonucleotide and a deoxyribonucleotide is: A) a ribonucleotide has a lower molecular weight than a deoxyribonucleotide B) a ribonucleotide has an extra hydroxyl (-OH) at C-4' C) a deoxyribonucleotide has an -H instead of an -OH at C-2' D) a ribonucleotide has a pyranose ring, deoxyribonucleotide had a furanose ring E) none of the above
3) which of the following is FALSE? Denaturation of DNA: A) is a reversible process B) requires cleavage of phosphodieser bonds C) is a cooperative process D) occurs at temperatures that are dependent of the nucleic acid sequence E) involves separation of a duplex into two individual strands A) glycerophospholipids B)sphingolipids C) cholesterol D) intergral membrane proteins E) A and B
2) the difference between a ribonucleotide and a deoxyribonucleotide is: A) a ribonucleotide has a lower molecular weight than a deoxyribonucleotide B) a ribonucleotide has an extra hydroxyl (-OH) at C-4' C) a deoxyribonucleotide has an -H instead of an -OH at C-2' D) a ribonucleotide has a pyranose ring, deoxyribonucleotide had a furanose ring E) none of the above
3) which of the following is FALSE? Denaturation of DNA: A) is a reversible process B) requires cleavage of phosphodieser bonds C) is a cooperative process D) occurs at temperatures that are dependent of the nucleic acid sequence E) involves separation of a duplex into two individual strands
Explanation / Answer
Answer: Option E
Both glycerophospholipids and sphingolipids contain two hydrocarbon tails and a polar head group. In glycerophospholipids, two fatty acyl chains acts as two hydrocarbon tails and a phosphate aspolar head group.Gangliosides a class of sphingolipids are present and concentrated on cell surfaces, with the two hydrocarbon chains of the ceramide moiety embedded in the plasma membrane and the oligosaccharides located on the extracellular surface, where they present points of recognition for extracellular molecules or surfaces of neighboring cells
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.