This is a completely free and open dictionary with over 60, biology terms. It uses the wiki concept, so that anyone can make a contribution.‎Branches of biology · ‎Organism · ‎Cell · ‎Homeostasis. Biology definition is - a branch of knowledge that deals with living organisms See the full definition for biology in the English Language Learners Dictionary. Subject: Biology. ISBN ISBN Barcode: Publisher: Folens. Author: David Bourke. Product: Book.


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Biology Dictionary Pro

Entry-level web links to online resources can be accessed via a companion website. The bonds can be arranged in two different ways producing stereoisomers that are mirror images of biology dictionary other.

Figure ATP adenosine 5-triphosphate A nucleotide that is the most important molecule for capturing and transferring free energy in cells. Figure ATP synthase Multimeric protein complex bound to inner mitochondrial membranes, thylakoid membranes of chloroplasts, and the bacterial plasma membrane that catalyzes synthesis of ATP during oxidative phosphorylation and photosynthesis ; also called Biology dictionary complex.

Figure autoradiography Technique for visualizing radioactive molecules in a biology dictionary e. The exposed film is called an autoradiogram or autoradiograph.


Figure autosome Any chromosome other than a sex chromosome. Figure axoneme Bundle of microtubules and associated proteins present in cilia and flagella and responsible for their movement. Figure B Any virus that infects bacterial cells. Some bacteriophage are widely used as cloning vectors.

Figure b benign Referring to a tumor containing cells that closely resemble biology dictionary cells.

A Dictionary of Biology

Benign tumors stay in the tissue where they originate. Figure biology dictionary See phospholipid bilayer.

C cadherin Protein belonging to a family of Ca2-dependent cell-adhesion molecules that play roles in tissue differentiation and structure.


Figure Calvin cycle The major metabolic pathway that fixes CO2 into carbohydrates during photosynthesis ; also called carbon fixation. It biology dictionary indirectly dependent on light but can occur both in the dark and light.

Biology Dictionary Eng-Eng-Marathi - Nirali Prakashan -

Generally is activated in response to a rise in cAMP level resulting from stimulation of G protein —coupled receptors. Figures and capsid The outer proteinaceous coat of a virus biology dictionary, formed by multiple copies of one or more protein subunits and enclosing the viral nucleic acid.

Primary type of compound biology dictionary for storing and supplying energy in animal cells. Enzymes are protein catalysts. Sequencing of a cDNA permits the amino acid sequence of the encoded protein to be deduced; expression of cDNAs in recombinant cells can be used to produce large quantities of their encoded proteins in vitro.

Most eukaryotic cell cycles can be commonly divided into four phases: Under certain conditions, cells exit the cell cycle during G1 and remain in the G0 state as nongrowing, nondividing quiescent cells.

The Australian Biology Dictionary (2e)

Appropriate stimulation of such cells induces them to return to G1 and resume growth and division. Figure cell division Separation of a cell into two daughter cells. In higher eukaryotesit involves division of the nucleus mitosis and of the cytoplasm cytokinesis ; mitosis often is used to refer to both nuclear and cytoplasmic division.

Figure cell line A population biology dictionary cultured cells, of plant or animal origin, that has undergone a change allowing the cells to grow indefinitely, in contrast to a cell strain.

Cell lines can result from chemical or viral transformation and are said to be immortal. Figure cell wall A specialized, rigid extracellular matrix that lies next to the plasma membraneprotecting a cell and maintaining biology dictionary shape.

It is prominent in most fungi, plants, and prokaryotesbut is not present in most multicellular animals.