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pore in Biological Dictionary

Guard cell

... epidermis that is used for gas exchange. The pore is formed by a pair of specialized parenchyma ... E-mail this entry ... The guard cells and pore are called the stoma, and are situated on the ... (Figure ... Guard cells regulate stomatal pore size to allow CO2 uptake while ... The changes in ...

Stoma

... in the leaf and stem epidermis that is used for gas exchange. The pore is formed by a pair of specialized parenchyma cells known as guard ... dictionary and encyclopedia. ... hydathode, water pore, water stoma - a pore that exudes water on the surface or ... Stoma - Definition of Stoma ...

Proglottid

... or within the same proglottid . ... ... cestodes, there is genital pore on the side of the proglottid . Eggs are released when proglottid deteriorates, and so a uterine pore is unnecessary. ... Proglottid . Tapeworm, common name for intestinal ...

Nucleolus

... Organelles: The Nucleus and Nucleolus ... The Nucleolus . Nuclear pore Complexes (NPCs) Import into the nucleus. Export from the nucleus " ... ... in the nucleus is the nucleolus . ... The Nucleolus . Nuclear pore Complexes (NPCs) Import into the nucleus. Export ... The Nucleolus ... ...

Stomata

... gas exchange in vascular plants. Stomata are small pores, typically on the undersides of leaves, that are opened ... stomata ) is a microscopic pore on the surface (epidermis) of land plants. ... The presence of countless numbers of stomata is critical for plant function. ... Stomata are ...

Signal Sequence

... (pdf) ... Certain mRNAs encode what is know as a " signal sequence " or leader peptide. ... The signal sequence is then threaded through a pore called the translocon. ... Upon translocation into that organelle, the signal sequence is removed. ... (proteins that go to the latter have ...

Rough ER

... ER . ... The endoplasmic reticulum (endoplasmic meaning "within the cytoplasm," reticulum meaning ... 1 Nucleus 2 Nuclear pore 3 Rough endoplasmic reticulum (rER) 4 Smooth ... ... smooth endoplasmic reticulum (sER) and rough endoplasmic reticulum (rER) ... The ...

Phylum

... to the biology, classification and ecology of sponges, the phylum Porifera ... The Phylum Porifera. Etymology:- From the Latin porus for pore ... Introduction to the Annelida, a medium sized phylum of more than 9,000 species of worms. Phylum , in biology, major category, or ...

Ostium

... ... originate from the right and left aortic sinuses (the sinuses of Valsalva), which are bulges ... ostium - small opening: a small pore or opening in a passage or organ of the body ... Ostium primum - Wikipedia, the free encyclopedia ... Ostium secundum ASD is the most common ...

Origin of life

... primitive Earth ... Research into the origin of life . Learn how certain small molecule interactions ... Origin of Life . Core Nuclear pore Elements Likely Shared By All Eukaryotes ... The Mystery of Life's Origin : Reassessing Current Theories, online chapters ... 8: ...

Monocot

... families. ... The Monocot Class of ... Monocot leaves tend to have parallel veins; in dicots the ... Monocot pollen has a single furrow or pore through the outer layer ... Monocot - Definition of Monocot at Dictionary.com a free online dictionary with ... monocotyledon ...

Madreporite

... ... ... other additional information on Madreporite from Biology-Online.org ... F. Madreporite . ... the starfish there is a(n) Eyespot Genital pore Madreporite . See entire post ... What is a(n) madreporite – Our zoology dictionary has ecology, physiology, ... madreporite In ...

Helix-loop-helix

... basic helix - loop - helix proteins with a two-hybrid system. ... BioInfoBank Library :: Helix - Loop - Helix Motifs :: physiology :: The pore helix dipole has a minor role in inward rectifier channel function. Coordinate expression ... A genomewide survey of basic helix - loop - ...

Cell nucleus

... nucleus ' Start a new discussion about ' Cell nucleus ' ... of large molecules from the cell nucleus is tightly controlled by the nuclear pore complexes. ... Within the cell nucleus is a viscous liquid called nucleoplasm, ... In cell biology, the ... encloses the nucleus and ...

Beta sheet

... -- Beta Sheet . The backbone of an beta sheet (shown in color below) is arranged in zig-zag (or pleated fashion. ... beta - sheet pore (76 References) Heinz, C., H. Engelhardt, et al. (2003) ... The domain formed is rich in beta - sheet structure and has no counterpart in ... ...
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