Bacterium
...
2 Reproduction
3 Metabolisms
4
movement
5 Groups and identification
6 Benefits ... glaciers and are called psychrophiles .
movement
Motile bacteria can move about, either using ... have two distinct modes of movement: forward
movement (swimming) and tumbling. The tumbling allows them ...
Brain
...
The brain controls and coordinates most
movement , behavior and homeostatic body functions ... of individual neurons leading to decrements in
movement control, memory, and thinking abilities. ... both for tasks involving coordination of body
movement and in pure thought processes, such as problem ...
Diffusion
... in chemical engineering
Diffusion is the
movement of matter due to the
movement of the individual molecules (or atoms). Diffusion ... fluids. Diffusion is caused by the thermal
movement of individual molecules. Some examples of ...
Bacterium
...
2 Reproduction
3 Metabolisms
4
movement
5 Groups and identification
6 Benefits ... glaciers and are called psychrophiles .
movement
Motile bacteria can move about, either using ... have two distinct modes of movement: forward
movement (swimming) and tumbling. The tumbling allows them ...
Kinesiology
... the study of the biological components of human
movement including the anatomical , physiological , ... the relationship between the quality of human
movement and the overall health of the human organism ... graphonomics , i.e., the study of handwriting
movement control and the study of motor control in speech ...
Muscle
... to the skeleton and used to facilitate
movement
Smooth muscles do not contain sarcomeres ... have significant differences, but all use the
movement of actin against myosin to produce ... senses.
Several areas in the brain coordinate
movement and position with the feedback information gained ...
Passive transport
... Main article: Diffusion
Diffusion is the net
movement of material from an area of high concentration of ... one area to the other, it will be balanced by
movement of
the same amount of material to the opposite ... diffusion
Facilitated diffusion is
movement of molecules across the cell membrane via special ...
Phloem
... plant's many growing areas are sugar sinks. The
movement in phloem is bidirectional, wheras in xylem ... smaller but quite living) companion cell.
While
movement of water and minerals through the xylem is driven by negative pressures (tension) most of the time,
movement through the phloem is driven by positive ...
Rudolf Steiner
... School , Biodynamic agriculture , the Camphill
movement , and the Christian Community . During a ... sections (faculties). Within the anthroposophical
movement it is seen as the source of research activity in ... In 1939, Doctor Karl Konig founded the Camphill
movement in Scotland as a place to provide treatment for ...
Cell biology
... showTocToggle("show","hide")
1 Processes in cell biology
1.1
movement of proteins
2 Techniques
2.1 Purification of cells and ... 3 See also
4 External links
Processes in cell biology
movement of proteins
Proteins are synthesized by ribosomes in the cytoplasm . ...
Charles Darwin
... – The Expression of Emotions in Man and Animals
1875 –
movement and Habits of Climbing Plants
1875 – Insectivorous Plants
... of Flowers on Plants of the Same Species
1880 – The Power of
movement in Plants
1881 – Formation of vegetable Mould Through the ...
Eugenics
... in the postwar years.
The nation that had the second largest eugenics
movement was the United States . Beginning with Connecticut in 1896 , many ... of eugenics
Eugenics Archive - Historical Material on the Eugenics
movement (funded by the Human Genome Project )
Eugenics Watch
Vermont ...
Extinction
... 6 Human attitudes on extinction
6.1 Scientists
6.2 Environmental
movement
6.3 Commercial and industrial interests
6.4 Governments and ...
Human attitudes on extinction
Scientists
Environmental
movement
Commercial and industrial interests
Governments and international ...
Actin
... myosin head to extend up and bind with the actin filament. The myosin head then releases after moving the actin filament in a relaxing or contracting
movement by usage of ADP.
In contractile bundles, the actin-bundling protein actinin separates each filament by 40 nm . This increase in distance allows ...
Active transport
...
2 See also
Types
There are two main types, primary and secondary . In primary transport energy is directly coupled to
movement of desired substance across a membrane, independent of any other species. Secondary transport concerns the diffusion of one species across a membrane ...
Alcohol
... of "alcohol" in most Western languages. (Incidentally, the etymology "alcohol" = "the devil" was used in the 1930s by the U.S. Temperance
movement for propaganda purposes.)
According to the second theory, the popular etymology and the spelling "alcohol" would not be due to generalization of ...
Biomechanics
...
Applications
Biomechanisms include all higher-class forms of life. The study of biomechanics ranges from the inner workings of a cell to the
movement and development of limbs , the vasculature , and bones . An understanding of the physiological behavior of living tissues would allow researchers ...
Bone
... it is formed, found in many animals . Bones support body structures, protect internal organs , and (in conjunction with muscles ) facilitate
movement ; are also involved with cell formation , calcium metabolism , and mineral storage . The bones of an animal are, collectively, known as the ...
Blood
... the Biblical injunction against deriving benefit from blood ("Because the soul of every animal is [in] his blood", Leviticus 17:14). The religious
movement maintains that apart from consuming blood, it is also forbidden to receive blood transfusions .
Vampire legends
Vampires are fictional ...
Cartilage
... cartilage are listed below.
Arthritis : The cartilage covering bones in joints (articular cartilage) is degraded, resulting in limitation of
movement and pain.
Achondroplasia : Reduced proliferation of chondrocytes in the epiphyseal plate of long bones results in a form of dwarfism .
...
Cytoskeleton
... shape, enables some cell motion (using structures such as flagella and cilia ), and plays important roles in both intra-cellular transport (the
movement of vesicles and organelles, for example) and cellular division.
Contents showTocToggle("show","hide")
1 The eukaryotic cytoskeleton ...
Cytosol
... , microtubules , and intermediate filaments ) and (in many organisms) maintains the shape of the cell, anchors organelles, and controls internal
movement of structures, e.g., transport vesicles .
As the concentration of soluble molecules increases within the cytosol, an osmotic gradient builds up ...
Dialysis
... For patients with a fistula (a surgical modification to an arm or leg vein to make it more robust, and therefore usable for high capacity blood
movement required by dialysis) this means inserting two large gauge needles into the fistula. (Yes, it hurts but there are various methods of numbing the ...
Dynein
... end of a microtubule.
See also: Kinesin
External links
How Cilia and Flagella Work (axonemal dynein)
Microtubule Based
movement (cytoplasmic dynein)
...
Golgi apparatus
... the trans face and are modified on their way.
The transport mechanism itself is not yet clear; it could happen by cisternae progression (the
movement of the apparatus itself, building new cisternae at the cis face and destroying them at the trans face) or by vesicular transport (small vesicles ...
Intermembrane space
... or a chloroplast . Its main function is nucleotide phosphorylation . Channel proteins called porins in the outer membrane allow free
movement of ions and small molecules into the intermembrane space. This means that it is essentially continuous with the cytosol in terms of solutes ...
Joint
... by a layer of celluar tissue that contains blood vessels and nerves.
Synovial joints can be further grouped by their shape, which controls the
movement they allow:
Gliding joints , such as in the carpals of the wrist. These joints allow a wide variety of movement, but not much distance.
...
Konrad Lorenz
... life Lorenz supported the fledgling Austrian Green Party , becoming the figurehead, in 1984 , of the Konrad Lorenz Volksbegehren , a grassroots
movement that was formed to prevent the building of a power plant at the Danube near Hainburg and thus the destruction of the yet untouched woodland ...
Marine biology
... fundamental ways. Human understanding of the relationship between life in the sea and important cycles of matter (such as the carbon cycle ) and
movement of energy through ecosystems is also growing, despite large areas beneath the surface of the ocean remaining effectively unexplored.
Subfields
...
Mathematical biology
... waves in a wound-healing assay [8]
The mechanochemical theory of morphogenesis [9]
Biological pattern formation [10]
Modelling the
movement of interacting cell populations [11]
Mathematical modelling of scar tissue formation [12]
These examples are characterised by complex , ...
Actin
... myosin head to extend up and bind with the actin filament. The myosin head then releases after moving the actin filament in a relaxing or contracting
movement by usage of ADP.
In contractile bundles, the actin-bundling protein actinin separates each filament by 40 nm . This increase in distance allows ...
Magnetic resonance imaging
... of these objects typically retained by the scanning facility.
Many safety issues, including the potential for biostimulation device interference,
movement of ferromagnetic bodies and incidental localized heating have been addressed in the American College of Radiology's 'White Paper on MR Safety' which ...
Osmoregulation
... than another thus water wants to move out of it.
Isotonic is solution with the same solute concentration (same osmotic pressure) as another; no net
movement of water.
Forms of osmoregulation
Two major types of osmoregulation are osmoconformers and osmoregulators.
Osmoconformers match their body ...
Peptide
... proteins tend, at their smallest, to be hundreds of residues long. So, in essence, a peptide is a small protein .
There is considerable
movement to redefine this arbitrary distinction such that a peptide is an amino acid molecule without structure; on gaining defined structure it is a protein. ...
Phospholipid
... proteins and phospholipid molecules are constantly moving laterally across the membrane because of the forces generated by their vibrations. Such
movement can be described by the Fluid Mosaic Model , which basically describes the membrane as a "mosaic" of lipid molecules that act as a solvent for all ...
Plasmolysis
... shrinks away from its cell wall. This phenomenon occurs when water is drawn out of the cell and into the extracellular (outside cell) fluid. The
movement of water occurs across the membrane moving from an area of high water concentration to an area of lower water concentration outside the cell. It is ...
Peptide
... proteins tend, at their smallest, to be hundreds of residues long. So, in essence, a peptide is a small protein .
There is considerable
movement to redefine this arbitrary distinction such that a peptide is an amino acid molecule without structure; on gaining defined structure it is a protein. ...
Thomas Malthus
... given Malthus's own opposition to contraception, his work was also a strong influence on Francis Place ( 1771 – 1854 ), whose Neo-Malthusian
movement was the first to advocate contraception.
Concerns about Malthus's theory also helped promote the idea of a national population Census in the UK. ...
Vestibular system
... The vestibular system , or balance system , is the sensory system
that provides the dominant input about our
movement and orientation in
space. Together with the cochlea, the auditory organ, it is situated in the
vestibulum in the inner ear (Figure 1). As our ...