Classic E.histolytica troph- small central karyosome with even distribution of chromatin along nuclear membrane, finely granular cytoplasm and INGESTED RBCs- PATHOGNOMONIC (also true for E. dispar but that is non-pathogen, E. hartmanii is same but smaller and no RBC). Cysts can have up to 4 nuclei! Look for RBC in background. STOOL EIA is good test for this.
Cell Organelles (Structure and Function) Matching Worksheet - Cells. This is a worksheet on cell organelles and their functions. There are 45 questions set up in a matching format. All questions deal with either the structure of the organelle or the functions of the organelles. Students will choose from a word bank of 21 organelles. $
A schematic of a section of a cell shows a simplified plasma membrane separating the external environment from the cell’s interior. A second set of two double membranes, lying side-by-side inside the cell, separates the nucleus from the surrounding cytoplasm. A gap between the ends of the two double membranes is a nuclear pore, which allows molecules to pass between the cytoplasm and the nucleus. The extracellular signaling molecule adrenaline is shown binding to an adrenergic receptor on…
Smudge Cells Smudge cells are remnants of cells that lack any identifiable cytoplasmic membrane or nuclear structure. Smudge cells, also called basket cells, are most often associated with abnormally fragile lymphocytes in disorders such as chronic lymphocytic leukemia (CLL). However, they can also be seen in degenerating samples; in which case, their origin may not be lymphocytic.