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- Cell biology (3658 bytes)
1: ... called '''cellular biology''' or '''cytology''', from the [[Greek language|Greek]] ''kytos'', "contai...
3: ...a unifying theme, allowing the principles learned from studying one cell type to be extrapolated and g...
8: ...through the ER and Golgi to the plasma membrane. From the plasma membrane, proteins destined to be de...
13: *[[Cell fractionation]]
17: *Proteins extracted from [[membrane]]s by [[detergent]]s and [[salt]]s. - Cell (biology) (28190 bytes)
3: ...are composed of one or more cells; all cells come from preexisting cells; all vital functions of an or...
5: The word ''[[cell]]'' comes from the [[Latin]] ''cella'', a small room. The nam...
15: ...ored in organic molecules. This energy is derived from [[metabolic pathway]]s.
23: ...they live alone or in groups. [[Organism]]s vary from single cells (called '''single-celled''' or '''...
34: ... which envelopes the cell, separates its interior from the surroundings, controls what moves in and o... - Cell nucleus (3211 bytes)
1: In [[cell biology]], the '''nucleus''' (from [[Latin]] ''nucleus'' or ''nuculeus'', kernel) ...
3: ...ganelle]] (in some cases not), varies in diameter from 10 to 20 [[micrometre]]s.
4: ... the chemical reactions taking place in cytoplasm from reactions happening within the nucleus. The out...
14: ...ch constitute euchromatin contain genes which are frequently expressed by the cell. - Plant cell (2762 bytes)
3: '''Plant cells''' are quite different from the [[cell (biology)|cells]] of the other eukar...
7: ...cate with other adjacent cells. This is different from the network of [[hyphae]] used by fungi. - Cell (29541 bytes)
3: ...are composed of one or more cells; all cells come from preexisting cells; all vital functions of an or...
5: The word ''[[cell]]'' comes from the [[Latin]] ''cella'', a small room. The nam...
15: ...ored in organic molecules. This energy is derived from [[metabolic pathway]]s.
23: ...they live alone or in groups. [[Organism]]s vary from single cells (called '''single-celled''' or '''...
34: ... which envelopes the cell, separates its interior from the surroundings, controls what moves in and o... - Cell division (1579 bytes)
- Cell cycle (2937 bytes)
1: ... [[eukaryote|eukaryotic]] [[cell (biology)|cell]] from one cell division to the next. It consists of [...
16: ... the [[spindle checkpoint]] blocks the transition from [[metaphase]] to [[anaphase]] within [[mitosis]... - Solar cell (27643 bytes)
3: ...rically used in situations where electrical power from the [[grid]] is unavailable, such as in remote ...
5: ...ell.png|thumb|250x|right|A '''solar cell''', made from a poly-crystalline silicon wafer]]
10: ...he [[etymology]] of the term "photovoltaic" comes from the [[Greek language|Greek]] ''photos'' meaning...
22: ...ls tend to be expensive, and because they are cut from cylindrical ingots, they cannot completely cov...
23: ...be formed into square shapes that cover a greater fraction of a panel than monocrystalline cells, and ... - Cell wall (6206 bytes)
15: ...o or more different domains, each with a sequence from a different class of glycoprotein. Most cell wa...
24: ... number of marine [[green algae]] including those from the genera, ''Codium'', ''Dasycladus'', and ''A...
32: ...ganic cell walls produced by other groups, silica frustules require less energy to synthesize (approxi...
Page text matches
- Steel (28384 bytes)
2: [[Image:Steel framework.jpg|thumb|300px|Steel framework]]
3: ...s, which are naturally arranged in a [[lattice]], from sliding past one another. Varying the amount of...
8: ...rtant that smelting take place in a fairly oxygen-free environment. Unlike copper and tin, liquid iro...
11:
17: ...n this case, expansion occurs. Internal stresses from this expansion generally take the form of [[com... - Marie Antoinette (40871 bytes)
2: ...VII]]. She was guillotined at the height of the [[French Revolution]].
4: ... [[Maria Theresa of Austria|Maria Theresa]] and [[Francis I, Holy Roman Emperor]]. She was born at the...
13: ...as flighty, artistic and read almost nothing. Her French was imperfect and she preferred to speak Germ...
15: ... was decided that Maria-Antonia should be sent to France to marry the dauphin.
17: ...arewell, my dearest child. Do so much good to the French people that they can say that I have sent the... - Mae Jemison (5527 bytes)
3: ... [[Spacelab]] laboratory module. Jemison resigned from NASA in March 1993.
5: ... in science, she is well-versed in African and [[African-American Studies]] and is trained in [[dance]...
7: ...cer for [[Sierra Leone]] and [[Liberia]] in West Africa. Returning to Los Angeles, she resumed her med...
11: ...lled the requirements for an A.B. in African and Afro-American Studies. She attended [[Weill Cornell M...
13: ...munication system to improve health care in West Africa; and The Earth We Share, (TM) an international... - Ulrike Meinhof (1853 bytes)
3: ...on]] (in [[German language|German]]: ''Rote Armee Fraktion''), which is also known as the ''Baader-Mei...
7: ...the same, she helped [[Andreas Baader]] to escape from prison and then took part in bank robberies and...
9: ... dead in her cell on [[May 9]], [[1976]], hanging from the ceiling. The [[Germany|German]] government ... - Julian of Norwich (1710 bytes)
1: ...mit|anchoress]]. At the age of thirty, suffering from a severe illness and believing she was on her d...
3: ...to draw us closer to himself. This was different from the prevailing views of her time, which typical... - Hannah Szenes (4490 bytes)
59: ...nna's death cell after her execution, (translated from the Hebrew version by Avigdor Hamieri), in anot... - Lucille Ball (12427 bytes)
5: ...rmer". Two years later, she witnessed , Warner, a friend of her brother's get shot, severing the spina...
9: ...s philandering and drinking caused problems right from the start. When he was drafted to the [[Army]] ...
22: From a production aspect, the use of actual [[film]]...
24: ...ilming the show, cans of paint (in shades ranging from white to medium gray) were kept on set to 'pain...
28: ...[[1986]], Arnaz and Ball would remain the best of friends. - Orchidaceae (20056 bytes)
16: ... language|Greek]] ''orchis'', meaning 'testicle', from the appearance of subterranean tuberoids in som...
23: ...restrial]] [[plant]]s, retrieving their nutrients from the soil. This group includes all [[Europe]]an ...
40: ...ctive mottle of the leaves of [[Lady's Slipper]]s from temperate zones (''[[Paphiopedilum]]'') is caus...
47: ..."one-footed") growth. The new shoots grow upwards from a single stem, originating in the end bud of th...
48: ...the rhizome may start its growth again, this time from an 'eye', or undeveloped bud, thereby causing t... - Botany (8977 bytes)
9: ...plant life can be studied at a variety of levels, from the [[molecular biology|molecular]], [[genetics...
20: ...either directly from [[staple food]]s and other [[fruit]] and [[vegetables]], or indirectly through [[...
22: ...[Gregor Mendel]] laid the foundations of genetics from his studies of plants.]]
25: ...eas|pea]] shape is inherited. What Mendel learned from studying plants has had far-reaching benefits o...
28: ...e from plants. Most [[alcoholic beverages]], come from [[fermentation|fermenting]] plants such as [[ho... - Nervous system (3163 bytes)
1: ...anatomy)|organ]]s, constructs and processes input from the [[sense]]s, and initiates [[action (philoso... - Respiratory system (5107 bytes)
10: ...[left main bronchus]] tubes that carry air to and from the lungs
24: ...odel of how the lungs are inflated]] can be built from a bell jar.
31: ...anisms to defend itself and prevent [[pathogen]]s from entering the body.
33: ...The lungs add and remove many chemical messengers from the blood as it flows through pulmonary capilla...
46: ... tracheoles. The insects' cells can't be too far from these tracheoles because this is where oxygen a... - Circulatory system (8794 bytes)
22: All circulatory systems frequently employ [[countercurrent exchange]] system...
25: ...ll the cells of the flat worm. Oxygen can diffuse from water into the cells of the flatworm. Thus ever...
30: ...eries are [[blood vessel]]s that carry blood away from the heart. Veins are blood vessels that return...
35: ...se of [[carbon dioxide]] and the uptake of oxygen from the air. The now oxygenated blood returns to t...
38: Oxygenated blood from the lungs returns to the heart via the pulmonar... - Lymphatic system (6229 bytes)
1: ...'s [[immune system]]. It also transports [[fat]]s from the [[small intestine]] to the [[blood]].
4: ... veins. Lymph originates as [[blood plasma]] lost from the [[capillary]] beds of the [[circulatory sys...
7: ...ulminating in the right lymphatic duct (for lymph from the right upper body) and the [[thoracic duct]]...
9: [[image:lymphatic_system.gif|right|frame|Major lymphatic vessels in humans]]
17: ...ns (such as pollen), the antigens are transported from the tissue to the lymph. The lymph is carried ... - Human skeleton (3903 bytes)
4: ...born with approximately 270. The difference comes from a number of small bones that fuse together duri...
31: ...e [[Bible]] which states that [[Eve]] was created from one of [[Adam]]'s ribs. However, both men and w...
35: ... can increase the likelihood of [[fracture (bone)|fracture]]s and broken bones, especially among [[men... - Digestion (4206 bytes)
11: ... in the liver; these bile pigments are eliminated from the body with the feces). Most nutrient absorpt... - Immune system (14564 bytes)
1: ...he [[organ system]] that protects an [[organism]] from outside biological influences. In the broad sen...
6: ...sequences, and enzymes that protect their own DNA from this enzyme by [[methylation|methylating]] the ...
11: ...] and [[autoimmune disorder|autoimmunity]]) arise from failures of discriminatory systems.
23: ...owever, most organisms are under constant assault from pathogens, which must be kept in check by the f...
31: ...s. Macrophages are thought to mature continuously from circulating [[monocyte]]s. - Brain (22060 bytes)
9: .... The brains of arthropods and cephalopods arise from twin parallel nerve cords that extend through t...
11: The brains of craniates develop from the anterior section of a single dorsal [[neura...
20: ...ers are [[congenital]]. [[Tay-Sachs disease]], [[Fragile X syndrome]], [[Down syndrome]], and [[Toure...
38: ...derstand the nervous system, including the brain, from a biological perspective. [[Psychology]] seeks...
41: ... which are the mass changes in electrical current from the cerebral cortex, but can only detect change... - Ear (6659 bytes)
10: ...nning to the [[middle ear]]. This tube amplifies frequencies in the range 3 [[Kilohertz|kHz]] to...
13: ... formed cleft from the side of the face and hangs from the rest of the ear, but occasionally will be f...
17: ...three ear bones. The incus and stapes are derived from bones of the jaw, and allow finer detection of ...
21: ...and middle ear gives humans a peak sensitivity to frequencies between 1 kHz and 3 kHz. The ...
28: ...um that receives the sound vibrations transmitted from the air to the oval window through the ear drum... - Human brain (15406 bytes)
19: ...d the [[circle of Willis]]. Blood is then drained from the brain through a [[brain sinuses|network of ...
21: ...he dense fluid protects the brain and spinal cord from shock; a brain that weighs 1,500 g in air weigh...
23: ...tes the soft tissues of the brain and spinal cord from the hard surrounding bones (skull and vertebrae...
25: ...dicine, [[childbirth]] was a dangerous event that frequently resulted in the death of the mother. The...
33: ...e [[neocortex]] with incoming sensory information from the [[brain stem]]. Powerful emotional pathways... - Artery (6875 bytes)
1: ...are muscular tubes that carry [[blood]] flow away from the [[heart]] to the [[biological tissue|tissue...
3: ...nd elastic tissue. The outermost layer (furthest from the flow of blood) is known as the ''[[tunica a...
15: ... binding sites have bound oxygen. Blood returning from the lungs, via the 4 pulmonary veins, to the le...
17: ...ting hemoglobin's affinity for oxygen). Returning from the body to the right atrium, [[hemoglobin]] mo...
19: ...t [[systemic]] artery. It receives blood directly from the left ventricle of the heart via the aortic ...
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