Table of Contents
- 1 What are the three organic molecules that make up the cell membrane?
- 2 What two organic molecules make up most of the cell membrane quizlet?
- 3 What are the atoms that make up carbohydrates?
- 4 What forms pores and transporters in the cell membrane?
- 5 What allows cells to recognize each other?
- 6 How are oligosaccharides attached to the alcohol chain?
- 7 Where is the oligosaccharide found in a glycoprotein?
What are the three organic molecules that make up the cell membrane?
Carbohydrates, proteins, phospholipids, and lipids are the organic compounds that make up the cell membrane.
Do phospholipids permit diffusion of lipid-soluble substances?
The region of the cell between the cell membrane and the nucleus, a watery solution of minerals organic molecules and gases. permit the diffusion of lipid-soluble substances into or out of the cell. phospholipids. are receptor site for hormones.
What two organic molecules make up most of the cell membrane quizlet?
Lipids are fats; in the body, common lipids include triglycerides — dietary and storage fats — and phospholipids, which form cell membranes.
What provides stability for the cell membrane?
The smaller molecules shown between the phospholipids are Cholesterol molecules. They help to provide rigidity or stability to the membrane. This self-organization of phospholipids results in one of just a few easily recognizable structures. Cell membranes are constructed of a phospholipid bilayer as shown above.
What are the atoms that make up carbohydrates?
Carbohydrates are a class of chemical compounds composed of carbon, hydrogen, and oxygen in 1:2:1 ratio, respectively.
What compound makes up the channels that are embedded in the cell membrane?
Integral proteins
Proteins make up the second major chemical component of plasma membranes. Integral proteins are embedded in the plasma membrane and may span all or part of the membrane. Integral proteins may serve as channels or pumps to move materials into or out of the cell.
What forms pores and transporters in the cell membrane?
BIO 110 Chapter 3
| Question | Answer |
|---|---|
| Form pores and transporters in the cell membrane. | Protein |
| Are antigens, in combination with oligosaccharides. | Proteins |
| Permit the diffusion of lipid-soluble substances into or out of the cell. | Phospholipids |
| Are receptor sites for hormones. | Proteins |
Where in a cell are most damaged proteins broken down?
Proteins in the cell that are damaged or folded incorrectly tend to form clumps or aggregates, which have been thought to dissolve gradually in a cell’s cytoplasm or nucleus thanks to an enzyme complex called the proteasome, or in a digestive organelle called the lysosome.
What allows cells to recognize each other?
The plasma membrane carries markers that allow cells to recognize one another and can transmit signals to other cells via receptors.
What are 3 atoms make up carbohydrates?
Carbohydrates contain only carbon, hydrogen and oxygen atoms; prior to any oxidation or reduction, most have the empirical formula Cm(H2O)n. Compounds obtained from carbohydrates by substitution, etc., are known as carbohydrate derivatives and may contain other elements.
How are oligosaccharides attached to the alcohol chain?
Oligosaccharide. Alternately, O-linked oligosaccharides are generally attached to threonine or serine on the alcohol group of the side chain. Not all natural oligosaccharides occur as components of glycoproteins or glycolipids. Some, such as the raffinose series, occur as storage or transport carbohydrates in plants.
Which is an example of cell recognition based on oligosaccharide?
Cell Recognition. Lectins, or proteins that bind carbohydrates, can recognize specific oligosaccharides and provide useful information for cell recognition based on oligosaccharide binding. [citation needed] An important example of oligosaccharide cell recognition is the role of glycolipids in determining blood types.
Where is the oligosaccharide found in a glycoprotein?
The oligosaccharide chain of N-glycosidically linked glycoproteins is invariably found attached to an Asn that is part of the sequence -Asn-X-Ser (Thr)-, where X may be one of the 20 amino acids.
How are mannan oligosaccharides different from other oligos?
They are normally obtained from the yeast cell walls of Saccharomyces cerevisiae. Mannan oligosaccharides differ from other oligosaccharides in that they are not fermentable and their primary mode of actions include agglutination of type-1 fimbria pathogens and immunomodulation