the branch of biology concerned with the structure and function of plant and animal cells

any of a number of organized or specialized structures within a living cell.

the material or protoplasm within a living cell, excluding the nucleus.

a microscopic membrane of lipids and proteins that forms the external boundary of the cytoplasm of a cell or encloses a vacuole, and that regulates the passage of molecules in and out of the cytoplasm.

a rigid layer of polysaccharides lying outside the plasma membrane of the cells of plants, fungi, and bacteria.

in green plant cells) a plastid that contains chlorophyll and in which photosynthesis takes place.

ural noun: mitochondria an organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production occur.

the central and most important part of an object, movement, or group, forming the basis for its activity and growth.

a small dense spherical structure in the nucleus of a cell during interphase.

a minute particle consisting of RNA and associated proteins, found in large numbers in the cytoplasm of living cells.

Endoplasmic Reticulum

a network of membranous tubules within the cytoplasm of a eukaryotic cell, continuous with the nuclear membrane.

a complex of vesicles and folded membranes within the cytoplasm of most eukaryotic cells, involved in secretion and intracellular transport.

a space or vesicle within the cytoplasm of a cell, enclosed by a membrane and typically containing fluid.

an organelle in the cytoplasm of eukaryotic cells containing degradative enzymes enclosed in a membrane.

a minute cylindrical organelle near the nucleus in animal cells, occurring in pairs and involved in the development of spindle fibers in cell division

an infective agent that typically consists of a nucleic acid molecule in a protein coat, is too small to be seen by light microscopy, and is able to multiply only within the living cells of a host.

Diffusion (Passive Transport)

the spreading of something more widely.

a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one, thus equalizing the concentrations on each side of the membrane.

the movement of ions or molecules across a cell membrane into a region of higher concentration, assisted by enzymes and requiring energy.

the smallest structural and functional unit of an organism, typically microscopic and consisting of cytoplasm and a nucleus enclosed in a membrane

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Vocabulary List #3

organells funtion

Term	Definition
Cytology	the branch of biology concerned with the structure and function of plant and animal cells
Organelles	any of a number of organized or specialized structures within a living cell.
Cytoplasm	the material or protoplasm within a living cell, excluding the nucleus.
Plasma Membrane	a microscopic membrane of lipids and proteins that forms the external boundary of the cytoplasm of a cell or encloses a vacuole, and that regulates the passage of molecules in and out of the cytoplasm.
Cell Wall	a rigid layer of polysaccharides lying outside the plasma membrane of the cells of plants, fungi, and bacteria.
Chloroplasts	in green plant cells) a plastid that contains chlorophyll and in which photosynthesis takes place.
Mitochondria	ural noun: mitochondria an organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production occur.
Nucleus	the central and most important part of an object, movement, or group, forming the basis for its activity and growth.
Nucleolus	a small dense spherical structure in the nucleus of a cell during interphase.
Ribosomes	a minute particle consisting of RNA and associated proteins, found in large numbers in the cytoplasm of living cells.
Endoplasmic Reticulum	a network of membranous tubules within the cytoplasm of a eukaryotic cell, continuous with the nuclear membrane.
Golgi Bodies	a complex of vesicles and folded membranes within the cytoplasm of most eukaryotic cells, involved in secretion and intracellular transport.
Vacuoles	a space or vesicle within the cytoplasm of a cell, enclosed by a membrane and typically containing fluid.
Lysosomes	an organelle in the cytoplasm of eukaryotic cells containing degradative enzymes enclosed in a membrane.
Centrioles	a minute cylindrical organelle near the nucleus in animal cells, occurring in pairs and involved in the development of spindle fibers in cell division
Virus(es)	an infective agent that typically consists of a nucleic acid molecule in a protein coat, is too small to be seen by light microscopy, and is able to multiply only within the living cells of a host.
Diffusion (Passive Transport)	the spreading of something more widely.
Osmosis	a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one, thus equalizing the concentrations on each side of the membrane.
Active Transport	the movement of ions or molecules across a cell membrane into a region of higher concentration, assisted by enzymes and requiring energy.
Cells	the smallest structural and functional unit of an organism, typically microscopic and consisting of cytoplasm and a nucleus enclosed in a membrane

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