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| a part of the cell containing DNA and RNA and responsible for growth and reproduction | ||
| A highly-porous membrane that separates the nucleus from the cytoplasm | ||
| A small hole in the nuclear envelope through which substances pass between the nucleus and the cytoplasm | ||
| small, dense region within most nuclei in which the assembly of proteins begins | ||
| a cell organelle composed of RNA and protein; the site of protein synthesis | ||
| System of internal membranes within the cytoplasm. Membranes are rough due to the presence of ribosomes. functions in transport of substances such as proteins within the cytoplasm | ||
| A network of membranes inside eukarytoic cells invovled in lipid synthesis (steroid in gonads), detoxification (in liver cells), and/or Ca2+ storage (muscle cells). | ||
| Organelle that modifies, sorts, and packages proteins from the endoplasmic reticulum and send proteins to their final destination | ||
| vesicles that bud from the Golgi apparatus and that contain digestive enzymes | ||
| Powerhouse of the cell, organelle that is the site of ATP (energy) production | ||
| Organelles that capture the energy from sunlight and convert it into chemical energy in a process called photosynthesis | ||
| a membrane-bound sac within the cytoplasm that is filled with water and dissolved substances. stores metabolic wastes and gives a plant cell support by means of turgor pressure | ||
| One of two tiny structures located in the cytoplasm of animal cells near the nuclear envelope; play a role in cell division. | ||
| strong supporting layer around the cell membrane in plants, algae, and some bacteria | ||
| thin, flexible barrier around a cell; regulates what enters and leaves the cell | ||
| newly discovered organelle that is thought to play a role in the transport of molecules (such as mRNA) from the nucleus to the cytoplasm. | ||
| a jellylike fluid inside the cell in which the organelles are suspended | ||
| Threadlike strands of DNA and protein in a cell nucleus that carry the code for the cell characteristics of an organism. | ||
| saclike structures that store materials such as water, salts, proteins, and carbohydrates | ||
| The collection of membranes inside and around a eukaryotic cell, related either through direct physical contact or by the transfer of membranous vesicles; includes the nuclear membrane, smooth and rough endoplasmic reticulum, the Golgi apparatus, lysosomes, and vacuoles. | ||
| A meshwork of fine fibers in the cytoplasm of a eukaryotic cell; includes microfilaments, intermediate filaments, and microtubules | ||
| The thinnest of the three main kinds of protein fibers making up the cytoskeleton of a eukaryotic cell; a solid, helical rod composed of the globular protein actin | ||
| An intermediate-sized protein fiber that is one of the three main kinds of fibers making up the cytoskeleton of eukaryotic cells. Intermediate filaments are ropelike, made of fibrous proteins. | ||
| The thickest of the three main kinds of fibers making up the cytoskeleton of a eukaryotic cell; a straight, hollow tube made of globular proteins called tubulins. These form the basis of the structure and movement of cilia and flagella. | ||
| A type of cell lacking a membrane-enclosed nucleus and other membrane-enclosed organelles; found only in the domains Bacteria and Archaea. | ||
| A type of cell that has a membrane-enclosed nucleus and other membrane-enclosed organelles. All organisms except bacteria and archaea are composed of eukaryotic cells. | ||
| This says that all living things are made of cells, that cells are the basic unit of structure and function and that cells only come from other cells. |
