Biochemistry
9th Edition
ISBN: 9781319114671
Author: Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher: W. H. Freeman
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Choose the TRUE statement. A phospholipid micelle (not a liposome) can be characterized as
- Forming a water in oil dispersion
- Having polar heads group-oriented inward
- AN aggregate forming below critical micellar concentration
- Having polar groups oriented outward.
- A spherical species featuring a double layer of phospholipid surrounding an aqueous compartment.
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- Please answer completely will give rating surelyarrow_forwardPlease divide each of the listed terms into 4 groups. Label what the group is called and describe the criteria of that group and why you picked that catagoryarrow_forwardSelect the single best answer. The composition of a cell membrane is not uniform for all types of cells. Some cell membranes are more rigid than others. Rigidity is determined by a variety of factors, one of which is the structure of the carbon chains in the phospholipids that comprise the membrane. Two examples of phospholipids are shown below, with one having C-C double bonds in its carbon chains. Which phospholipid would be present in the more rigid cell membrane? CH2 Compound A: H-C- (CH3)9NCH,CH2-0-P-0-CH2 CH2-O Compound B: Н-с—о. (CHa)ÑCH,CH2-O-P-0-CH2 Compound A Compound Barrow_forward
- Tell me the type of transport based on the following diagramsarrow_forwardPlease ASAP. Thanku. Which of the following can undergo simple diffusion through a phospholipid bilayer? K+ H2O CO2 Glucosearrow_forwardWhat is the role of lysozyme and a low ionic strength extraction buffer? Select all that apply. Cells absorb water from a low ionic strength extraction buffer, by osmosis, swell and lyse, releasing their contents Lysozyme breaks down bonds in the cellulose cell wall of plants, weakening the structure Cells release water into a low ionic strength extraction buffer by osmosis, shrink and lyse, releasing their contents Lysozyme is an enzyme found in lysosomes in cells Lysozyme breaks down bonds in the peptidoglycan cell wall of bacteria, weakening the structure Lysozyme is an antibiotic found in tears, saliva, human milk and mucus.arrow_forward
- Give detailed Solution with explanation needed (don't give Handwritten answerarrow_forwardChoose 3 words and make them a sentence. Repeat this structure 2 times pleasearrow_forwardLipid bilayers form spontaneously in a process driven by the hydrophobic effect. Explain how the hydrophobic effect drives bilayer formation from individual lipids in an aqueous environment. Describe how the physical properties of the lipid bilayer are determined by the chemical properties of the membrane lipid components. Diagrams are encouraged for both parts of the question.arrow_forward
- The plasma membrane has a hydrophobic interior due to the two present in each phospholipid found in the phospholipid bilayer of the cell membrane. The plasma membrane allows some molecules to cross but not all. Therefore, the plasma membrane is said to be Molecules that are nonpolar and hydrophobic will cross the membrane with ease by Does this process require energy? When molecules move across the plasma membrane by passive transport, they will move down or with the_ from an area of concentration to an area of. concentration. Polar, hydrophilic molecules and charged ions will move across the plasma membrane by the process of_ This does not require energy, but it does require a A special case of diffusion is known as which is the movement of water across the plasma membrane. If a cell is placed into a solution that is hypertonic compared to the inside of the cell, the cell would If a cell is placed into a hypotonic solution compared to the inside of the cell, the cell water. would…arrow_forwardIntegral membrane proteins... Choose all that could apply are bound to the membrane by only interacting with the phospholipid's polar head O contain many amino acids with hydrophobic residues O contain alpha-helical membrane spanning domains O would not be digested by trypsin in a permeabilized cell O interact with the phospholipid core of the phospholipid bilayerarrow_forwardChoose the Incorrect statement. In the phospholipid bilayer part of the cell membrane. None of the statement are false Cholesterol is one of the major constituents Zwitterionic phospholipid are approximately equally distributed between inner and outer monolayers Negatively charged phospholipids are located in the inner monolayer facing cytoplasm Glycosylated lipids are located in the outer monolayer facing other cellsarrow_forward
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