Why is peptidoglycan such a strong molecule?

Why is it an advantage for eukaryotic cells to have different compartments (aka organelles) in the cell (separated by membranes) with different environments (ex: different pH’s, different enzymes present, etc)?

32.     ________ are members of an integral membrane glycoprotein family that bind to specific carbohydrate arrangements in oligosaccharides that project from the surfaces of other cells. a)     Selectinsb)     Integrinsc)     Cadherinsd)     Immunoglobulin super family proteinse)     Calmodulins

Some antimicrobial drugs used to treat bacterial infections disrupt the process of protein synthesis. What could these drugs target? Why would this ultimately lead to cell death?

The hydrophobic interior of the cell membrane is created by O O a) peripheral proteins b) phospholipids heads c) integral proteins d) glycoproteins e) phospholipids tails

what are CXCL10 and CCL2. what role do they play?

Why does cholesterol play a critical role in cell recognition?

Which of these is not a macromolecule? a) Ala b)  protein  c)  polysaccharide   d)  nucleic acid The site of translation is the a) nucleus b)   ribosomes  c)  lysosomes    d)    mitochondria Which of these pairs of molecules dissolved in water not produce a buffer solution? a) HF and NaF    b)  NH3 and NH4Cl   c)  CH4 and H2O    d)  NaH2PO4 and Na2HPO4 The soap-water-oil mixture that you made in your amphipathic home lab exercise may be best described as: a) an amphipathic substance b) a hydrophilic substance   c)  a hydrophobic substance  d)  an emulsion Which of these amino acids would have a negative charge at pH 7.0? a) Lys b)  Asp   c)  Met   d)  Gly Which of these amino acids has two nitrogen atoms in its structure? a) Lys   b)  Arg   c)  Tyr   d)  Val Beta sheets are an example of: a) primary structure b)  secondary structure   c)  tertiary structure   d)  quaternary structure Folding in myoglobin are an example of: a) primary structure b)  secondary structure   c)  tertiary…

The true nucleus is generally absent in E.coli and other prokaryotes.Comment.

What are the two biomolecules that make up ribosomes