39 results found

Search Results for: myosin

Myosin

Definition noun, plural: myosins A family of motor ATPases that interact with f actin filaments Supplement Myosins belong to... Read More

Myosin atpase

myosin atpase (Science: enzyme) An enzyme that catalyses the hydrolysis of myosin aTP in the presence of actin to form... Read More

Tropomyosin

Definition noun A long protein strand composed of two fully alpha helical chains in a coiled-coil dimmer, and binds along... Read More

Cytokinesis

The cell cycle of eukaryotes is a cyclical series of biological events that certain asexual cells go through. The cell cycle... Read More

Muscle

Muscle cells are specialized to generate force and movement. There are three types of muscle tissue: (1) skeletal muscle,... Read More

Muscular system

Muscular System Definition What is the muscular system? The muscular system is a system that includes muscle cells and... Read More

Myosin filament

myosin filament One of the contractile elements in skeletal, cardiac, and smooth muscle fibres; in skeletal muscle, the... Read More

Thick filament

Definition noun, plural: thick filaments A type of myofilament that is made up of bipolar myosin II filaments, and is... Read More

Smooth muscle

The smooth muscle can be described as a type of muscle in the human body that is non-striated and involuntary in action.... Read More

Terminal web

Definition noun (cell biology) The subapical zone rich in microfilaments, and acts as the attachment point for the bundles... Read More

Myocardium

Myocardium Definition What is the myocardium of the heart?  It is the muscular middle layer of the heart that is... Read More

Unstriated muscle

unstriated muscle --> smooth muscle (Science: anatomy, pathology, physiology) muscle tissue in vertebrates made up from... Read More

Microfilament

Definition noun plural: microfilaments mi·cro·fil·a·ments, mī'krō-fil'ă-mĕnts A thin, helical, single-stranded... Read More

Z disc

Definition noun, plural: Z discs The region or line formed in the sarcomere into which the thin filaments are... Read More

Sarcolemma

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

Tissue

Tissue Definition What is tissue in the body? The body tissue is an aggregation of cells that function together and have a... Read More

Cytoskeleton

Definition noun plural: cytoskeletons cy·to·skel·e·ton (cell biology) The lattice or internal framework of a cell... Read More

Myofilament

Definition noun, plural: myofilaments Any of the filaments made up of proteins and comprise the... Read More

Muscles of the Apes – a thwack on human muscle evolution

Summary: A recent finding suggests that apes do have the muscles for bipedalism, vocal communication, and facial... Read More

Involuntary muscle

A muscle act typically either under the control of the will or without conscious control. Muscles that can be controlled at... Read More

Chromomere

Definition noun, plural: chromomeres (genetics) One of the beadlike granules that are arranged in a linear series along the... Read More

Intermediate filament

Definition noun plural: intermediate filaments A type of cytoskeleton characterized by having a diameter ranging from 8... Read More

Protein Variety

The sequence of amino acids determines which type of protein it is. It is synthesized from a DNA strand, each DNA strand... Read More

A Band

The dark band of the muscle sarcomere that corresponds to the thick myosin (protein) filaments.The A band is situated on... Read More

Protein

Protein Definition Proteins are biomolecules comprised of amino acid residues joined together by peptide bonds.... Read More

Cell matrix

Definition noun plural: cell matrices cell ma·trix, ˈmeɪtɹɪks An insoluble, dynamic gel in the cytoplasm, believed... Read More

Microtubule

Microtubule Definition noun plural: microtubules mi·cro·tu·bule, mī'krō-tū'byūl A cytoplasmic tubule made up of... Read More

Intermediate filaments

Definition noun plural: intermediate filaments A type of cytoskeleton characterized by having a diameter ranging from 8... Read More

Subunit

Definition noun, plural: subunits (general) A subdivision or a distinct component of a larger unit Supplement The word... Read More

Troponin

Definition noun, plural: troponins A regulatory protein that is a complex of three polypeptides (i.e. troponin c, troponin... Read More

Sarcomere

Definition noun, plural: sarcomeres A segment consisting of a highly organized assembly of filaments delimited by two Z... Read More

Muscle contraction

muscle contraction A process leading to shortening and/or development of tension in muscle tissue. Muscle contraction occurs... Read More

Filament

Definition noun, plural: filaments (1) threadlike structure. (2) a fiber or fibril. (3) a long chain of protein subunit, as... Read More

Muscle plasma

muscle plasma An alkaline fluid in muscle that is spontaneously coagulable, separating into myosin and muscle... Read More

Heavy chain

Heavy chain (Science: protein) in general, the larger polypeptide in a multimeric protein. Thus the immunoglobulin heavy... Read More

Rigor

rigor Stiffening of muscle as a result of high calcium levels and aTP depletion, so that actin myosin links are made, but... Read More

Striated muscle

Definition noun, plural: striated muscles A muscle that is made up of long fibers characterized by transverse or oblique... Read More

Thin filament

Definition noun, plural: thin filaments A type of myofilament that is made up of actin, troponin, and tropomyosin molecules,... Read More

How cell fixes DNA damage

DNA repair strategies DNA is crucial to life. It carries the fundamental blueprint for the proper functioning of a cell.... Read More