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Home ‣ Biochemistry ‣ Membrane Structure and Functions Comments
- Question
Membrane lipids are
Options- A. hydrophilic
- B. hydrophobic
- C. ampiphillic
- D. none of these
- Correct Answer
- hydrophilic
- 1. The plasma membrane is a selectively permeable barrier due to presence of specific transport
Options- A. proteins
- B. amino acids
- C. carbohydrates
- D. none of these Discuss
- 2. Which of the following is correct?
Options- A. Peroxisomes have a single boundary membrane
- B. Peroxisomes contain enzymes that degrade fatty acids and amino acids
- C. The byproduct of given reactions in (b) is toxic to cells
- D. All of the above Discuss
- 3. Which of the following is not found in membranes?
Options- A. Glycoproteins
- B. Glycolipids
- C. Nucleic acids
- D. Phospholipids Discuss
- 4. Pinocytosis occurs in
Options- A. all eukaryotic cells
- B. all prokaryotic cells
- C. mitochondria of all cells
- D. none of these Discuss
- 5. Cholesterol is somewhat amphipathic due to
Options- A. the single hydroxyl along with the hydrocarbon nature of the remainder of the molecule
- B. the long branched hydrocarbon along with the four hydrocarbon rings
- C. the five-methyl groups along with the hydrocarbon chain
- D. the three six-membered rings along with the single five-membered ring Discuss
- 6. In Fluid mosaic model, the biological membrane can be viewed as
Options- A. two dimensional solutions of oriented lipids and globular proteins
- B. three dimensional solutions of oriented lipids and globular proteins
- C. two dimensional solutions of oriented lipids and carbohydrate
- D. three dimensional solutions of oriented lipids and carbohydrate Discuss
- 7. The smooth endoplasmic reticulum (SER) is the site of
Options- A. phospholipid synthesis
- B. amino acid synthesis
- C. carbohydrate synthesis
- D. protein synthesis Discuss
- 8. In membranes, lipids are
Options- A. glycerophospholipids
- B. sphingolipids
- C. sterols
- D. all of these Discuss
- 9. The glycosidic bonds in DNA and RNA
Options- A. connect the sugar to the base
- B. can be hydrolyzed by OH- ion
- C. stabilize Watson-Crick H-bonds
- D. are free to rotate over about 180° Discuss
- 10. Thymidine
Options- A. can participate in hydrophobic interactions due to its methyl group
- B. is replaced by uracil in RNA
- C. normally forms two hydrogen bonds with adenosine
- D. all of the above Discuss
Membrane Structure and Functions problems
Search Results
Correct Answer: proteins
Correct Answer: All of the above
Correct Answer: Nucleic acids
Correct Answer: all eukaryotic cells
Correct Answer: the single hydroxyl along with the hydrocarbon nature of the remainder of the molecule
Correct Answer: two dimensional solutions of oriented lipids and globular proteins
Correct Answer: phospholipid synthesis
Correct Answer: all of these
Correct Answer: connect the sugar to the base
Correct Answer: all of the above
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