which is more likely to cross the plasma membrane, a small uncharged molecule or a large...
Homework Answers
Answer- a small uncharged molecule
A cell is having a lipid bilayer as a boundary. The cell membrane separates cellular content from surrounding.
The cell membrane is composed of lipids, proteins, and carbohydrates. Phospholipids are amphipathic molecules, have a hydrophilic head and hydrophobic fatty acid chains.
The small uncharged molecule can pass through lipid bilayer as they are soluble in the lipid bilayer. The large polar molecule cannot cross the lipid bilayer.
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which is more likely to cross the plasma membrane, a small
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what about the nucleosides? how could it cross the
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An uncharged molecule is at a concentration of 5.00 mM on the outside of a membrane...
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Question 1 (1 point) Of the following, which type of molecule moves directly across a membrane at the slowest rate? Large polar molecules, such as glucose Proteins and other macromolecules Small, uncharged polar molecules, such as water lons, such as chloride (CI)
Question 11 (1 point) of the following, which type of molecule moves directly across a membrane most easily? Large polar molecules, such as glucose Small, uncharged non-polar molecules such as 02. lons, such as chloride (CI) Proteins and other macromolecules
what about the nucleosides? how could it cross the
membrane?
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Ions, polar molecules, and large molecules cannot readily cross a lipid bilayer and are dependent on transport proteins to cross a membrane. Classify each of the seven images as an example of a uniport, symport, or antiport transport system.
5. What is the free energy change in transporting an uncharged molecule across the membrane of a cell from 10 M to 10 M? Is an input of free energy required for this transport? (5 points) 6. What is the free energy cost of pumping Ca out of a cell when the cytoplasmic concentration is 0.9 uM, the extracellular concentration is 1.5 mM, and the membrane potential is -70mV at a temperature of 25°C? What is the free energy cost...
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