ions against an electrochemical gradient D) attaching to the cytoskeleton aining
ID: 93523 • Letter: I
Question
ions against an electrochemical gradient D) attaching to the cytoskeleton aining fluidity of the phospholipid bilayer ese is not embedded in the hydrophobic portion ofthe lipid bilayer at all? B) integral proteins which proteins A) ansmembrane E) gl each membrane. ul. In what way do the membranes of a eukaryotic cell vary? proteins are unique to AJ are found only in certain membranes, B) Certain c)Only certain of the cell are selectively permeable. D)Only certain membranes are constructed from molecules. others have hydrophilic surfaces E)Some membranes have hydrophobic surfaces exposed to the cytoplasm, whi becoming clogged with very facing the cytoplasm. and 32. Tay Sachs disease is a human genetic abnormality that results in cells accumulating and Which cellular organelle must be involved in this condition? A) the endoplasmic reticulum the Golgi apparatus B) D) m c) the lysosome E) components. Which 33, Hydrolytic enzymes must be segregated and packaged to prevent general destruction of cellular of the following organelles contains these hydrolytic enzymes in plant cells? A) 34. The solutions in the two arms of this U-tube are separated by a membrane that is permeable to water and glucose but not to sucrose. Side A is halffilled with a solution of2 Msucrose and 1 Mglucose. Side B is half-filled with IM sucrose and 2 glucose. Initially, the liquid levels on both sides are equal- 1 M 2 M 2 M 1 M After the system reaches equilibrium, what changes are observed? A) The molarity of glucose is higher in side A than in side B B) The water level is unchanged. D) The water level is higher in side A than in E) The molarity of sucrose and glucose are equal on both sides. 35. A cell with a predominance offree ribosomes is most likely A) producing primarily proteins for secretion. B) producing primarily cytoplasmic proteins D) enlarging its vacuole. C) digesting large food particles. E) constructing an extensive cell wall or extracellular matrix 36. What types of proteins are not synthesized in the rough ER? B) extracellular matrix proteins A) endoplasmic reticulum proteins mitochondrial proteins C) secreted proteins E) plasma membrane proteins 37. Which structure is not part of the endomembrane system? A) nuclear envelope B) chloroplast C) Golgi apparatus D) plasma membrane E) ERExplanation / Answer
According to chegg rules we cannot answer more than one question per post.
Since question 30 is the first question which is fully seen,I will answer this question
The correct option is C. Peripheral proteins.
These proteins are present on the peripheral hydrophilic layer of the membrane. They are not embedded in the membrane but are loosely attached.
All the other proteins like integrins, glycoproteins,integral membrane proteins,and transmembrane proteins are all present in both the hydrophilic and hydrophobic parts of the membrane
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