受体Drug receptor:A protein macromolecule produced by the body that was designed by nature to interact with an endogenous molecule,but which will also interact with a drug molecule,if it has the correct chemical structure.激动剂Agonist:Has intrinsic activityα=1;拮抗剂Antagonist:Lack intrinsic activi...
Hydrolysis of what molecule causes activation of the myosin head? How does the binding of a new molecule of ATP to the myosin affect the interaction between myosin and actin? In other words, in reference to actin specifically, what happens to the myosin filament once it binds to a new ...
ATP stands for what? Why is ATP important to cells? What is the role of ATP during muscular contraction? What form of energy is ATP? How does ATP provide energy to a cell? Why is ATP necessary for active transport? What happens to the ATP molecule after it has been used to do work...
process is still considered passive because it doesn’t really require a true energy output, but the protein molecule acts as sort of a check so that transport isn’t as free as it is in simple diffusion. The cell doesn’t really have to work, in other words, but it still has some ...
or the gradual difference in the concentration of substances between two areas. Facilitated diffusion is how molecules move down a concentration gradient with the help of proteins. When certain molecules can't get past the membrane, the special proteins undergo a change to allow the molecule to pa...
I would assume it is similar for plants as well. Water isn't a very big molecule, and the combination of hydrogen and oxygen makes a molecule that doesn't have a charge (non-polar). An example of the other type that immediately comes to mind for me is the facilitated diffusion of ...
Intracellular Transportation Cells are complex structures with many "moving parts" that need to get from one point to another within the cell in order to accomplish metabolic processes. There are specialized organelles in both plant and animal cells that make up the superhighways of a cell. ...
Answer and Explanation:1 A carrier molecule is a protein that helps transport a substance or electrons across a barrier. Carrier proteins usually allow the transport of polar... Learn more about this topic: Carrier Proteins | Definition, Functions & Examples ...
What is the hydrophobic part of the cell membrane? How are molecules transported across a cell membrane? Which type of molecule will require some amount of energy to cross the cell membrane? The lipid bilayer molecules do what for the cell? What is bulk transport cell membrane? Which ma...
What molecule stores the energy that is produced during cellular respiration? Where does cellular respiration occur in a plant cell? Which energy source do plants use to produce sugar? What are plastids in a plant cell? Where does energy for active transport come from a cell?