29 results found

Search Results for: exocytosis

Endocytosis

Endocytosis Definition What is endocytosis in biology? Endocytosis is a cellular process by which a cell internalizes any... Read More

Plasma membrane

Do all cells have a plasma (or cell) membrane? Yes, all cells have a biological membrane that separates the protoplasm from... Read More

Movement of Molecules Across Cell Membranes

Diffusion Diffusion is essentially the movement of molecules from a region of higher concentration to a region of lower... Read More

GERL

Definition noun Acronym for Golgi - Endoplasmic Reticulum - Lysosome complex, a system found in the cell that involves... Read More

Cell membrane

Cell Membrane Definition Just like any non-living body possesses a plastic or paper packaging material that keeps the... Read More

Endomembrane system

Ever wondered how biomolecules are made within the cell and then they are released outside the cell for use by the body?... Read More

Exocytosis

When materials leave the cell by the membrane "spitting it... Read More

Axon terminal

An axon terminal is any of the button-like endings of axons through which axons make synaptic contacts with other nerve... Read More

Sarcolemma

Sarcolemma Definition What is the sarcolemma? It is the thin, transparent, extensible plasma membrane of the muscle cell.... Read More

Digestion and Absorption of Food

The gastrointestinal (GI) system includes the gastrointestinal tract (mouth, pharynx, esophagus, stomach, small intestine,... Read More

Circulation

Blood Blood is composed of a liquid, plasma, and blood cells such as erythrocytes (red blood cells,) leukocytes (white... Read More

Neural Control Mechanisms

Nerve cells called neurons generate electric signals that pass from one end of the cell to another and release chemical... Read More

Genetic Information and Protein Synthesis

Genetic Code Genes are sequences of DNA nucleotides that carry and transmit the information specifying amino acid sequences... Read More

Phagolysosome

Definition noun plural: phagolysosomes (cell biology) A cytoplasmic body that forms from the fusion of phagosome and... Read More

Phagosome

Definition noun plural: phagosomes phag·o·some, ˈfæg əˌsoʊm (cell biology) A vesicle that forms by pinching off... Read More

Stratum granulosum

Definition noun The thin layer of the epidermis comprised of granular keratinocytes that migrated from the stratum... Read More

Gamete

Definition of Gamete What is a gamete? A gamete is the mature reproductive or sex cell that contains a haploid number of... Read More

Chondrocyte

Definition noun, plural: chondrocytes A cell occupying a lacuna in the extracellular matrix of the cartilage Supplement The... Read More

Merocrine gland

Definition noun, plural: merocrine glands A type of exocrine gland in which the secretory products are released without... Read More

Hormone

Definition noun, plural: hormones (physiology) Any of the substances produced and secreted by an endocrine gland, and then... Read More

Lysosome

Lysosome Definition noun plural: lysosomes ly·so·some, ˈlaɪsəˌsoʊm (cell biology) Organelle containing a large... Read More

Neurophysiology

Definition noun A branch of neuroscience that is concerned with the physiology of the nervous system Supplement Neuroscience... Read More

Hyperosmotic

Hyperosmotic Definition The word Hyperosmotic is derived from two Greek words: 'hyper', meaning “excess” and 'osmos',... Read More

Vesicle

Definition noun, plural: vesicles (general) A small sac or cyst containing fluid or gas (cell biology) A bubble-like... Read More

Epidermis

Epidermis Definition What is the epidermis? We can define the epidermis as one or more layers of cells forming the tough... Read More

Glycerol

Definition noun glyc•er•ol, ˈglɪs əˌrɔl A sugar alcohol made up of two polyols derived from saponification of... Read More

Phagocytosis

Definition noun The process of engulfing and ingestion of particles by the cell or a phagocyte (e.g. macrophage) to form a... Read More

Cross-linking

Cross-linking Definition Cross-linking, in general, means the forming of cross-links between the joining structures. In... Read More

Pinocytosis

Pinocytosis Definition What is pinocytosis?  Pinocytosis is the ingestion of extracellular fluids, i.e. the fluid... Read More