Cytoskeleton
... cytoskeleton
1.1 Actin Filaments
1.2
intermediate Filaments
1.3 Microtubules
2 The ... along with myosin , muscular contraction .
intermediate Filaments
Main article:
intermediate filaments
These 8 to 11 nanometers in ...
Intermediate filament
...
intermediate filaments are one component of the cytoskeleton ... components of living cells. Their size is
intermediate between that of microfilaments and ... envelope )
Keratin IFs
keratin
intermediate filaments
These proteins are the most diverse ...
Antibiotic resistance
... in England, France and the US. VRSA is also termed GISA (glycopeptide
intermediate Staphylococcus aureus ) or VISA (vancomycin
intermediate Staphylococcus aureus ), indicating resistance to all glycopeptide ...
DNA virus
... virus that has DNA as its genetic material and does not use an RNA
intermediate during replication. Viruses that either have RNA as their genetic material or use an RNA
intermediate during replication are called RNA viruses . The DNA can either be single- ...
Antibiotic resistance
... in England, France and the US. VRSA is also termed GISA (glycopeptide
intermediate Staphylococcus aureus ) or VISA (vancomycin
intermediate Staphylococcus aureus ), indicating resistance to all glycopeptide ...
Species
... Koala is found, the larger and darker it is likely to be; Koalas in
intermediate regions are
intermediate in weight and colour. In contrast, over the same geographic range, ...
Amino acid
... (antibiotic peptides of microbial origin). 1-Aminocyclopropane-1-carboxylic acid ( ACC ) is a small disubstituted cyclic amino acid and a key
intermediate in the production of the plant hormone ethylene .
In addition to amino acids for protein synthesis, there are other biologically important amino ...
Chemiosmotic hypothesis
... stored as a stable high potential intermediate, a chemically more conservative concept.
The problem with the older paradigm is that no high energy
intermediate was ever found, and the evidence for proton pumping by the complexes of the electron transfer chain grew too great to be ignored. Eventually the ...
Ion gradient
... Na+/K+ ATPase use ATP to make a sodium ion gradient and a potassium ion gradient.
Proton gradients
The proton gradient can be used as an
intermediate energy storage for heat production and flagellar rotation . Additionally it is an interconvertible form of energy in active transport, electron ...
Cytosol
... on the molecular level. The cytosol also contains the cytoskeleton . This is made of fibrous proteins ( microfilaments , microtubules , and
intermediate filaments ) and (in many organisms) maintains the shape of the cell, anchors organelles, and controls internal movement of structures, e.g., ...
Escherichia coli
... of its ubiquity, E. coli is frequently studied in cellular biology . Its structure is clear, and it makes for an excellent target for novice and
intermediate students of the life sciences.
Trivia
University of Arizona microbiologist Dr. Charles P. Gerba gave his first son the middle name of ...
Eye
... How a complex structure like the eye could have evolved is often said to be a difficult question for the theory of evolution , on the basis that
intermediate forms of an eye would presumably have been of little use, and light-sensitive organs are present in a variety of different creatures without any ...
Gene
... for example eye color. A gene's most common allele is called the wild type allele, and rare alleles are called mutants .
Normally, RNA is an
intermediate product in the translation of a molecular gene into a protein. However, for some gene sequences, RNA molecules are actually the functional end ...
Hepadnaviridae
... very small genomes of circular, partially double-stranded DNA . They have a peculiar mode of replication, because they replicate through an RNA
intermediate (which they translate back into DNA using reverse transcriptase ). Because of this mode of replication, Hepadnaviruses are classified as RNA ...
Hardy-Weinberg principle
... not in Hardy–Weinberg proportions.
Table 3: Example Hardy–Weinberg principle calculation
Genotype
White-spotted ( AA )
intermediate ( Aa )
Little spotting ( aa )
Total
Number
1469
138
5
1612
From which allele frequencies can be calculated:
p
...
Joint
... concentration of collagen and the lowest concentration of proteoglycans , making it very resistant to shear stresses. Deeper than that is an
intermediate layer, which is mechanically designed to absorb shocks and distribute the load efficiently. The deepest layer is highly calcified, and anchors the ...
Keratin
... dandruff results when the scalp sheds such cells.
Keratin molecules are helical and fibrous, twisting around each other to form strands called
intermediate filaments. These proteins contain a high percentage of sulfur -containing amino acids , largely cysteine , which form disulfide bridges between ...
Memory
... calculations (additions and multiplications) to arrive at the final answer. The ability to store the information regarding the instructions and
intermediate results is what is referred to as working memory.
Classification by information type
Long-term memory, the largest part of any model, can be ...
Nuclear lamina
... A nuclear lamina is a dense, fibrillar meshwork composed of
intermediate filaments that lines the inner surface of the nuclear envelope .
...
Redox
... oxidation of water into molecular oxygen . The reverse reaction, respiration , oxidises/oxidizes sugars to produce carbon dioxide and water. As
intermediate steps, the reduced carbon compounds are used to reduce Nicotinamide adenine dinucleotide (NAD + ), which then contributes to the creation of a ...
Plasmid
... plasmids are incapable of initiating conjugation, hence they can only be transferred with the assistance of conjugative plasmids, by 'accident'.
An
intermediate class of plasmids are mobilisable , and carry only a subset of the genes required for transfer. These plasmids can 'parasitise' another plasmid, ...
Protein
... The filamentous material that makes up the cytoskeleton of cells and much of the structure of animals is also protein: microtubules, actin ,
intermediate filaments, collagen and keratin are components of skin, hair, and cartilage . Another class are the motor proteins such as myosin , kinesin, ...
Redox
... oxidation of water into molecular oxygen . The reverse reaction, respiration , oxidises/oxidizes sugars to produce carbon dioxide and water. As
intermediate steps, the reduced carbon compounds are used to reduce Nicotinamide adenine dinucleotide (NAD + ), which then contributes to the creation of a ...
RNA virus
... An RNA virus is a virus that either uses RNA as its genetic material , or whose genetic material passes through an RNA
intermediate during replication. For example, Hepatitis B virus is classified as an RNA virus, even though its genome is double-stranded DNA, because the genome ...
Ribulose-1,5-bisphosphate
...
ribulose-1,5-bisphosphate
ribulose-1,5-bisphosphate (RuBP) is an important
intermediate in the Calvin cycle taking place during photosynthesis . It is the substrate used by the enzyme RubisCO to fix carbon dioxide .
...
Trait
... : long before the molecular theory of DNA .
Biochemistry of dominance and extensions to expression of traits
The biochemistry of the
intermediate proteins determines how they interact in the cell. Therefore, biochemistry predicts how combinations of different alleles will produce varying ...
Virus classification
... or double-stranded genomes. Furthermore, some viruses store their genome in RNA rather than in DNA form. RNA arises in cells as an
intermediate when genes are translated into proteins . RNA genomes of viruses can be encoded in two different directions: Either the genes are stored in the ...