Archaea
Eukarya
Bacteria
Phospholipids are described as amphipathic molecules, meaning they possess both hydrophilic (water-attracting) and hydrophobic (water-repelling) properties. They consist of a glycerol backbone, two fatty acid tails, and a phosphate group, which contributes to their polar nature. This unique structure allows phospholipids to form bilayers, a fundamental component of cell membranes, providing structural integrity and facilitating the movement of substances in and out of cells.
Yes, the cells of archaebacteria, bacteria, protists, fungi, plants and animals all have cell membranes. (Viruses have protein coats, not cell membranes and thus are not true 'cells'.) Thus indeed, all cells possess a cell membrane.
Yes, prokaryotes, which include bacteria and archaea, possess cell membranes. These membranes are primarily composed of a phospholipid bilayer that serves as a barrier, controlling the movement of substances in and out of the cell. Unlike eukaryotes, prokaryotes lack membrane-bound organelles, but their cell membranes are essential for maintaining cellular integrity and facilitating metabolic processes.
Phospholipids are classified according to alcohol they possess so they are classified into three categories: 1) Glycerophosphatides (Glycerol-alcohol based phospholipids): a) Phosphatidic acid (phosphate) (PA) b) phosphatidylcholine (lecithin) (PC) c) phosphatidylinositol (PI) & d) phosphatidylethanolamine (cephalin) (PE), 2)Phospho-inositides (inositol-alcohol based phospholipids): a) phosphatidylinositol phosphate (PIP) b) phosphatidylinositol bisphosphate (PIP2) & c) phosphatidylinositol triphosphate (PIP3), 3) Phospho-sphingosides (sphingol-alcohol based phospholipids): a) Ceramide phosphorylcholine (Sphingomyelin) (SPH) b) Ceramide phosphorylethanolamine (Sphingomyelin) & c) Ceramide phosphorylglycerol (Cer-PE).
Chloroplasts do not have pores in the same way that cell membranes do, but they contain structures called stomata and thylakoids. Stomata are openings on the leaf surface that allow gas exchange, while thylakoid membranes within chloroplasts house proteins and pigments needed for photosynthesis. These thylakoid membranes have protein complexes that can facilitate the movement of ions and molecules, but they are not pores in the traditional sense. Thus, while chloroplasts have ways to regulate substance movement, they do not possess pores like those found in some other cellular structures.
Yes, the mitochondria possess two membranes.
Phospholipids are described as amphipathic molecules, meaning they possess both hydrophilic (water-attracting) and hydrophobic (water-repelling) properties. They consist of a glycerol backbone, two fatty acid tails, and a phosphate group, which contributes to their polar nature. This unique structure allows phospholipids to form bilayers, a fundamental component of cell membranes, providing structural integrity and facilitating the movement of substances in and out of cells.
Yes, gram-negative bacteria have two cell membranes: an inner membrane and an outer membrane.
Mitochondria possess two membranes because they are believed to have evolved from a symbiotic relationship between a primitive eukaryotic cell and a prokaryotic cell. The outer membrane helps protect the organelle, while the inner membrane is where important processes like cellular respiration occur.
Yes, the cells of archaebacteria, bacteria, protists, fungi, plants and animals all have cell membranes. (Viruses have protein coats, not cell membranes and thus are not true 'cells'.) Thus indeed, all cells possess a cell membrane.
as a researcher, i possess the following qualities such as honest, effective and resourceful.W hy? because these re the qualities needed in researching.
Techincally, in Tennessee, there is no such thing as a gun that is "in your name." There are only the following to things: guns you legally possess and guns you illegally possess. As long as you legally possess the gun in question, there is no problem.
A hypothesis must possess capable of being proven false and testable in order to be considered to be scientific.
Nuclear envelope is a boundary that separates nuclear materials from the cytoplasm. Nuclear envelope possess proteins to exchange molecules across the nuclear membranes such as importins/exportins.
Dogs have a stronger sense of smell and are better at following commands compared to cats.
explain "these"
The following nations possibly possess weapons of mass destruction:IranNorth Korea