what are the structure/function of a phospholipid , Integral Protein , Fatty acid tails , Phosphate heads , Pe?

Phospholipid- they are composed of a phosphate head and two fatty acid tails. Phospholipids makes up the membrane of an organelle (eg.nucleus) or cell. They are found in two rows with the phosphate head facing outwards and tails facing inwards, creating a space in-between called the hydrophobic (water-hating) phospholipid bilayer. Phospholipids' function is to basically control what goes in and out of the cell or organelle and how it moves across the membrane. Because the bilayer is hyrdrophobic , water-soluble particles which includes polar (charged) particles, and large proteins cannot pass through the membrane as they will be repelled so they have to found alternative ways to pass into the cell hence the presence of integral proteins which are hydrophillic (water-loving). Lipid-soluble molecules can easily pass through the bilayer and well as some small proteins.

Integral protein- as said above these proteins can create hydrophillic gateways enabling water-soluble molecules to pass into the cell and these proteins are called carrier proteins and channel proteins (there are two types). Integral proteins can also act as receptors and these proteins are called glycoprotein. A hormone can bind to them to trigger a response inside the cell.

Fatty acid tails- these make up the phospholipid. The fatty acid tailes is what makes the phospholipid bilayer hydrophobic,letting only lipid-soluble molecules through.

phosphate heads- these are also part of the phospholipid and are hydrophillic.

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what are the structure/function of a phospholipid , Integral Protein , Fatty acid tails , Phosphate heads , Pe?

Phosphate Head

phospholipid bi layer of a membrane has hydrophillic heads and hydrophobic tails. allows for diffusion of small hydrophobic materials from the outside to the inside of the membrane.

integral proteins are the kind of proteins that are embedded into the phosolipid bi layer. another type of integral protein is the transmembrane protein that stretches across the entire membrane.

( google pics for better understanding)

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