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Digestion

Biology DiffusionDigit

Digestion is the process of metabolism whereby a biological entity processes a substance in order to chemically and mechanically convert the substance for the body to use.

 


digestion
preparing food, through the action of enzymes, for absorption
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...

Cell Digestion and the Secretory Pathway
The primary sites of intracellular digestion are organelles known as the lysosomes, which are membrane-bounded compartments containing a variety of hydrolytic enzymes.

digestion The process of breaking down food into its molecular and chemical components so that these nutrient molecules can cross plasma membranes.

digestion
[L. digestio, separating out, dividing]
The process of breaking down food into molecules small enough for the body to absorb.
dihybrid ...

Digestion efficiency: The fraction of living food that does not survive passage through a predator's gut.
Dinoflagellate: Dominant planktonic algal form, occurring as a single cell, often biflagellate.

Digestion the process of breaking food down into molecules small enough to be absorbed by the body
(dia- = across‚ through‚ separate‚ apart; gen = bear‚ produce; hence digest = to separate‚ divide‚ dissolve) ...

Digestion of DNA with a restriction endonuclease
Extracted DNA is treated with a restriction endonuclease, which is an enzyme that will cut double stranded DNA whenever a specific DNA sequence occurs.

Double digestion
Cleavage of a DNA molecule with two different restriction endonucleases, either concurrently or consecutively.
Duplex DNA
A double-stranded DNA molecule.

Digestion is both mechanical and chemical. Mechanical digestion refers to breaking down the food into smaller more manageable pieces.

Digestions of double-stranded DNA by many restriction enzymes (e.g. EcoR V) generate ends without any single-stranded sequences. Such ends are called blunt ends.
Related
Sticky ends ...

digestion of structural proteins in the cytoplasm,
degradation of chromosomal DNA, and
phagocytosis of the cell.
2. Apoptosis triggered by external signals: the extrinsic or death receptor pathway ...

digestion and respiration structures
mesoderm
muscles, bones, blood, skin, and reproductive organs ...

digestion The process by which larger molecules of food substances are broken down into smaller molecules that can be taken up by the digestive system; hydrolysis.

A digestion will give an error (i.e., fragments of unexpected length) when an error has destroyed a restriction site or created a new one from a "near-site" of b-bases whose sequence differs from the target sequence by one base (we ignore the ...

The digestion of carbohydrates typically involves hydrolysis reactions in which complex carbohydrates (polysaccharides) are broken down to maltose (a disaccharide). Maltose is then further broken down to produce two glucose molecules.

Anaerobic digestion, the breakdown of organic matter by bacteria
Anaerobic exercise, a form of exercise
Anaerobic glycolysis, the conversion from sugar to alcohol using yeast ...

The final step is digestion of the prey. If a cell does not act quickly, the bacterium could begin to reproduce. Lysosomes quickly attach to the vesicle of food and release digestive enzymes. The enzyme action is called an oxidative burst.

Cystic fibrosis -- an autosomal recessive genetic condition of the exocrine glands, which causes the body to produce excessively thick, sticky mucus that clogs the lungs and pancreas, interfering with breathing and digestion.

Sticky endShort section of single-stranded DNA produced at the end of a double-stranded DNA fragment produced by DNA digestion with certain restriction enzymes.

The bile is either carried to the gall-bladder by the cystic duct or poured directly into the duodenum by the common bile duct where it aids in digestion.

The liver plays a major role in metabolism, digestion, detoxification and elimination of substances from the body.

Vacuole: A vacuole is a membrane-bound sac that plays roles in intracellular digestion and the release of cellular waste products. In animal cells, vacuoles are generally small.

Use as few units as possible to get a complete digestion. This avoids overdigestion and reduces the final glycerol concentration in the reaction.

Following restriction enzyme digestion of DNA, a subset of DNA fragments is selected for PCR amplification and visualisation.
Related Terms:
Polymorphism
Difference in DNA sequence among individuals.

Cystic fibrosis is a hereditary disease characterized by faulty digestion, breathing problems, respiratory infections from mucus buildup, and the loss of salt in sweat.

Through the process of digestion, your body breaks the food down into the basic blocks of life, and than rebuilds them by incorporating them into your body.

Sticky ends: After digestion of a DNA with certain restriction enzymes, the ends left have one strand overhanging the other to form a short (typically 4 nt) single-stranded segment.

They include faulty digestion, breathing difficulties and respiratory infections due to mucus accumulation, and excessive loss of salt in sweat.

RESTRICTION FRAGMENTS - DNA fragments generated by digestion of a DNA preparation with one or more restriction endonucleases; ...

Footprinting, DNAase: DNA with protein bound is resistant to digestion by DNAase. When a sequencing reaction is performed using such DNA, a protected area representing the footprint of the bound protein will be detected.

anus -- End of the digestive tract, or gut, through which waste products of digestion are excreted, as distinct from the mouth.
aperture -- Small opening, for example the opening in the test of a foram.

Major histocompatibility complex (MHC) Integral membrane proteins that bind and display on a cell's surface peptides derived from the digestion of proteins from the cytosol (class I MHC proteins) or from endosomal compartments (class II MHC ...

A highly sensitive method for detecting polymorphisms in DNA. Following restriction enzyme digestion of DNA, a subset of DNA fragments is selected for PCR amplification and visualisation.

anus
The terminal opening of the gut; the solid residues of digestion are eliminated through the anus.

Restriction fragments The (relatively) short fragments of DNA which are the result of the digestion of high molecular weight DNA by a restriction endonuclease.

They are important tools in biotechnology for the industrial production of bioproducts, and for other processes related to cleaning (e.g. degreasing, remediation), digestion (e.g. cellulases, deinking, bleaching in the pulp and paper industry) and ...

Our mouths alone are host to four hundred identified - and probably hundreds more unidentified - species of bacteria. Most bacteria are benign to their host, some even provide valuable services. For example, bacteria in the gut aid digestion and ...

and reached opposite poles of the cell as the spindle begins to disintegrate, the nuclear membrane reappears, and the cytoplasm begins to divide
Vacuoles - membrane-bound organelles in the cytoplasm that are used for storage and digestion ...

See also: Organ, Human, Trans, Cells, Protein