Question 25Which of the following is not a potential biological role of the lipid asymmetry of the plasma membrane?Appearance of phosphatidylserine on the outer surface of aging lymphocytes marks them for destruction by macrophages.GPIsỹanchor certain proteins on membranes.Maintenance of a charge differential in the two membrane leaflets.The presence of phosphatidylinositol primarily in the inner leaflet is involved in signal transduction.

The plasma membrane is also known by the name cell membrane. This membrane is found in all the major…

Answered: Which of the following is not a…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Vesicles forming at the plasma membrane, or at the trans face of the Golgi, and destined only to fuse with endosomes and lysosomes, are generally not associated with which of the following proteins? dynamin proteins cargo receptor proteins clathrin proteins collagen proteins adaptin proteins
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…
The Na- Glucose symporter effectively transports glucose intracellularly against its concentration gradient using energy stored in the Na+ concentration gradient of the cell. The energy is derived from Glucose -Na antiporter Na+-K+-ATPase Passive Epithelial transport OH-CL antiporter
Peripheral membrane proteins O may noncovalently interact with phospholipid heads O contain many hydrophobic amino acid residues if found on the cytosolic leaflet but contain hydrophilic residues if found on the extracellular leaflet O contain only alpha helical membrane spanning domains O have covalently attached lipid or fatty acid anchors All of the other are true
A very small, uncharged molecule passes easily through the cell membrane.Which of these statements is the most likely explanation? the cell is expending energy to do this a protein carrier must be at work the cell membrane is mostly composed of liquid lipid molecules phagocytosis has enclosed this molecule in a vacuole
Which is NOT a function of proteins present in the cell membrane? O Prevent crystallization of lipids in the membrane Site of signal transduction O Regulation of membrane transport O Serve as identification markers
Well, the centriole is not present in the Pro-cariotic cell, nor is it in the permanent cell. So even if Amitosis can occur in procariotic cells, why not Amitosis occur in permanent cells? What is the thing that does not allow the permanent cell to divide normally in Amitosis like procariotic cell?
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The motor proteit v transports cargo in the direction, carrying it from the soma to the terminals. microtubule GABA neurofilament sodium myelin kinesin connexin dynein
Proteins that possess a signal sequence of substantially non-polar amino acids, but do not possess a signal sequence of several positively-charged amino acids, are destined for which cellular location? the peroxisome the endoplasmic reticulum the chloroplast the mitochondrion the cytosol
In conditions of dehydration, plant cells can increase their water retention by regulating the function of some or all of their aquaporins, membrane-bound protein channels that allow water to move through the cell membrane via facilitated diffusion. Which of the following describes a likely mechanism by which aquaporins can be used to regulate the movement of water across the plant cell membrane? A B с D Synthesis of additional aquaporins by the plant cell ribosomes will allow the cell to coun- teract the movement of water out of the cell. Inhibition of ATP hydrolysis will make the aquaporins unable to remove water from the cell and cause more water to remain in the cell. Inactivation of aquaporins will make water molecules unable to move across the plant cell membrane and allow more water to remain in the cell. Inhibition of the plant cell Golgi apparatus will decrease the production rate of vesicles and slow down the exocytosis of water molecules.

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