Card Set Information
Cells, organelles function and structure.
Structure: Double layer of lipids; embedded with proteins.
Function: An external cell barrier; acts in transport of substances in/out of cell.
: Part of cell that lies internal to plasma membrane, external to nucleus. Jelly like.
Water, ions and enzymes.
: The cytoplasm plays an important role in a cell, serving as a
"molecular soup" in which the organelles are suspended and
held together by a fatty membrane.
: Dense particles of two sub units; each composed of ribosomal RNA and protein; free or
attached to rough ER.
: The sites of protein synthesis.
Rough Endoplasmic Reticulum
: Membrane system enclosing a cavity, the cisterna, and coiling through the cytoplasm;
externally studded with ribosomes.
: Makes proteins that are secreted from the cell; makes the cell’s membranes.
Smooth Endoplasmic Reticulum
: Membranous system of sacs and tubules; free of ribosomes.
: Site of lipid and steroid synthesis, lipid metabolism and drug detoxification.
: A stack of smooth membrane sacs close to the nucleus.
: Packages, modifies, and secretes proteins for secretion from the cell, inclusion in
: Rod-like, double membrane structures; inner membrane folded into projections called
: Site of ATP synthesis; powerhouse of the cell.
: Membranous sacs containing acid hydrolases.
: Sites of intracellular digestion.
: Membranous sacs of oxidase enzymes
: The enzymes detoxify a number of toxic substances; the most important enzyme,
catalase, breaks down hydrogen peroxide
: Cylindrical structures made of tubulin proteins
: Support the cell and give it shape. Involved in intracellular movements, form
: Paired cylindrical bodies, each composed of nine triplets of microtubules.
: Organize a microtubule network during mitosis to form the spindle and asters; form the
bases of cilia and flagella.
: Surrounded by the nuclear envelope; contains fluid nucleoplasm, nucleoli and chromatin.
: Control center of the cell; responsible for transmitting genetic information and
providing the instructions for protein synthesis.
: Dense spherical (non-membrane bounded) bodies
: Site of ribosome subunit manufacture.
: Granular, thread-like material composed of DNA and hystone proteins.
: DNA constitutes the genes.