The most abundant lipids in cell membranes are. Lipid molecules in biological me

Question

The most abundant lipids in cell membranes are. Lipid molecules in biological membranes are arranged at a continuous double layer called the which it about 5 nm thick. Sugar containing lipids called are found only in the outer half of the belayed and their sugar groups are exposed at the cell surface. are a proteins that function in the folding reactions of proteins ensuring that the proteins fold correctly. Proteins that are covalently attached to carbohydrates are called The currently accepted model of membrane structure is called the model. Proteins that are localized within in the interior of the cell membrane are called. Two critical regions in a bacterial promoter necessary for transcription initiation are the and regions. A(n) may be reversible or irreversible thus slowing or stopping an enzymatic reaction. A(n) inhibitor such as aspirin or salicylic acid binds to the enzyme covalently, causing an irrevocable loss of catalytic activity A Inhibitor binds to the active site of the enzyme but cannot be processed by the enzyme resulting in a change in but not the of the enzyme reaction. In DNA, coding segments of genes are interrupted by sequences called. are DNA sequences 50 to 100 nucleotides long that are located upstream by typically a few hundred to a few thousand nucleotides from the gene that they regulate. They are bound by regulatory proteins that stimulate transcription initiation. The coding segments of genes interrupted by noncoding sequences are referred to as. Allosteric regulators affect an allosteric enzymes affinity for the, An effectors that activates an enzyme is called a(n), while an effectors that inhibits an enzyme is called a(n). Each Golgi stack has distinct sides or faces. The is oriented towards the transitional elements of the ER. The oppose side of the Golgi complex is called the. Two types of chromatin found in eukaryotic cells are and. Proteins that are attached loosely to exterior to the cell membrane are called .

Explanation / Answer

1. phospholipids. Membrane lipids have both hydrophobic that is water hating and hydrophilic that is water living ends.

2. The later is known as phospholipids bilayer. This layer has one hydrophilic head and two hydrophobic tails.

3. Glycolipids. Carbohydrate + lipids= glycolipids. Bond - glycosidic bond. Helps in cell recognition.

4. Chaperones. These protein are ubiquitously found in cells and assists proteins in protein folding by providing them their native 3D confirmation.

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