Although the absolute level of tumor marker did not correlate with prognosis, a normal value indicated an improved survival. CEA was elevated in 35.2 % of 110 patients determined to have recurrent disease and CA 19-9 was elevated in 62.9 %. At least one of the tumor markers was elevated in 68.2 % of patients.
Cell Membrane In BOTH types of cells. Controls what goes in and out of the cell. Chloroplast In a PLANT CELL. Captures energy from sunlight. Uses energy to produce cell food, which is sugar. Process called photosynthesis. Cytoplasm In BOTH types of cells. Houses gel-like fluids that support cell organelles. Endoplasmic Reticulum In BOTH types of cells.
Both the cell membrane and the cell wall serve this function. All cells have a cell membrane, and certain cells (plant and bacterial) also have a cell wall. The cell membrane's main function is to regulate the movement of materials into and out of the cell. During plasmolysis, the cell membrane pulls away from the cell wall. 2  This does not happen in low salt concentration because of the rigid cell wall. 3  Plant cells maintain their normal size and shape in a low salt concentration solution.