Proteins doorways are when stuff outside the ceel attaches to proteins that enter the cell. Oh yah mom can i have a break when we get home!!!
Special doorways in the cell membrane are made of proteins called ion channels or transporters. These proteins allow specific ions or molecules to pass through the cell membrane, regulating the movement of substances in and out of the cell.
protein
analysing the function of a particular protein is protein characterization.
A virus can enter through many portals (doorways): nose, mouth, bites by dogs, ticks or mosquitoes through the skin or sexual contact.
Yes, hemoglobin is considered a globular protein because of its compact, roughly spherical structure. It is also classified as a conjugated protein because it consists of a protein component (globin) and a non-protein prosthetic group (heme).
Particles move through protein doorways, known as channels or pores, by binding to specific sites in the protein structure that can open and close to allow passage. These channels help regulate the flow of ions and molecules across cell membranes, ensuring proper communication and function within cells. The process of particle movement through protein doorways is essential for various cellular processes, including nutrient uptake and cellular signaling.
Since you are talking about the movement of particles, it would not be osmosis, because osmosis is the movement of water. Technically speaking, you could consider water a particle, but it is assumed that this question refers to movement of soluteparticles, and not solvent particles. Then, to determine if the movement is active or passive, one needs to know if energy is required and if the movement is up or down the concentration gradient. No energy requirement, it is passive. If a source of energy is needed, then it is active transport. Not sure what a protein doorway is. If you mean a pore, then the movement may be passive, or even facilitated diffusion.
Doorways to Space was created in 1951.
Doorways in the Sand was created in 1976.
Doorways to Space has 206 pages.
Doorways in the Sand has 181 pages.
The ISBN of Doorways in the Sand is 0-060-14789-X.
"Doorways of Italy" in English is Vie d'accesso d'Italiain Italian.
Doorways - 1993 TV is rated/received certificates of: Iceland:12
doorways
doorways
Charles Babcock McGrew has written: 'Italian doorways' -- subject(s): Doorways, Architecture