Please help (BL2) According to the fluid mosaic model of cell membranes, protein

Question

Please help

(BL2) According to the fluid mosaic model of cell membranes, proteins a. b. c. d. e. can move side-to-side in the membrane frequently flip-flop from one side of the membrane to the other are restricted to the surface of the membrane have hydrophilic tails in the interior of the membrane settle into a highly packed arrangement at high temperatures 14. (BL1) Which of the following are functions of plasma membrane proteins? Hive a. Transport, cell-cell recognition, DNA repair b. Transport, enzymatic activity, mRNA splicing c. Transport, cell-cell recognition, lipid synthesis d. Transport, enzymatic activity, cell-cell recognition e. Transport, DNA repair, mRNA splicing and 15. (BL2) Which kind s of molecules listed below pass through a cell membrane most easily? a. large polar b. ionic c. isotopic d. large hydrophobic e. small hydrophobic ars dissolved 16, (BL3) A cell has a solute concentration of 3%, it is placed in a solution that has 796 salt and sug inside it. What will happen to the cell? a. b. c. d. e. Water will enter the cell and it will burst Water will enter the cell and it will shrink Water will leave the cell and it will burst Water will leave the cell and it will shrink It is impossible to tell without more information 17. (BL2) Diffusion a. b. c. d. e. Only occurs in liquids not solids or in the air Requires the use of energy by the cell Is a passive process where molecules move from an area of higher to lower concentration Requires integral proteins to allow movement across a membrane Needs proteins such as aquaporins for salts 18. (BL2) Several epidemic microbial diseases of earlier centuries created high death rates because they resulted in a. antiviral medications that are efficient and work well with most viruses b. intravenous feeding techniques, like TPN c. medications to slow blood loss, like Warfarin d. hydrating drinks with high concentrations of salts and glucose, like Gatorade e. antibiotics and public health awareness severe dehydration due to vomiting and diarrhea. Today these are usually not fatal because we have developed 19. (BL3) How many reactants are there in the pathway shown above? a. Two b. Three c. Four d. Five e. Six

Explanation / Answer

13-C (protein is present over the surface of membrane as well as it is embedded over it)

14-D(singling,transport,recognisation,cell -cell communication)

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---