ANT 2511 Lecture Notes - Lecture 3: Endoplasmic Reticulum, Semipermeable Membrane, Flagellum
Document Summary
Both primates often have similar facial expressions, emotions, & body movements. Basic unit of life for all organisms. Single-celled organisms w/ no nuclear membranes or organelles & w/ their genetic material as a single strand in the cytoplasm. (appeared 3. 5 bya) Multi-celled organisms that have a membrane-bound nucleus containing both the genetic material & specialized organelles. (appeared 1. 2. A membrane-bound structure in eukaryotic cells that contains the. The jelly-like substance inside the cell membrane that surrounds the nucleus & in which the organelles are suspended. Cell membrane: a semipermeable membrane surrounding the entire cell, separating one cell from the next. Endoplasmic reticulum: an organelle that usually surrounds the nucleus. Cell wall: provides a rigid shape & controls the movement of molecules in & out of the cell. Nucleoid region: houses the genetic material of the prokaryotic cell, but unlike the nucleus of a eukaryotic cell it is not contained within a membrane. Flagellum: a whiplike structure attached to some prokaryotes.
