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Ribbon representation of the Streptomyces lividans β-1,4-endoglucanase catalytic domain - an example from the family 12 glycoside hydrolases [1]. Cellulase (EC 3.2.1.4; systematic name 4-β-D-glucan 4-glucanohydrolase) is any of several enzymes produced chiefly by fungi, bacteria, and protozoans that catalyze cellulolysis, the decomposition of cellulose and of some related polysaccharides:
[1] [2] They are spherical vesicles that contain hydrolytic enzymes that digest many kinds of biomolecules. A lysosome has a specific composition, of both its membrane proteins and its lumenal proteins. The lumen's pH (~4.5–5.0) [3] is optimal for the enzymes involved in hydrolysis, analogous to the activity of the stomach.
The eastern gorilla (Gorilla beringei) is a critically endangered species of the genus Gorilla and the largest living primate. At present, the species is subdivided into two subspecies. There are 6,800 eastern lowland gorillas or Grauer's gorillas (G. b. graueri) [4] and 1,000 mountain gorillas (G. b. beringei). [5] Illegal hunting threatens ...
Males in captivity can be overweight and reach weights up to 310 kg (683 lb). [28] Western gorilla (Gorilla gorilla) and eastern gorilla (Gorilla beringei) The eastern gorilla is more darkly coloured than the western gorilla, with the mountain gorilla being the darkest of all. The mountain gorilla also has the thickest hair.
Thus, while most microorganisms can assimilate simple monomers, degradation of polymers is specialized, and few organisms can degrade recalcitrant polymers like cellulose and lignin. [16] Each microbial species carries specific combinations of genes for extracellular enzymes and is adapted to degrade specific substrates . [ 12 ]
The western gorilla (Gorilla gorilla) is a great ape found in Africa, one of two species of the hominid genus Gorilla. Large and robust with males weighing around 168 kilograms (370 lb), the species is found in a region of midwest Africa, geographically isolated from the eastern gorilla (Gorilla beringei). The hair of the western species is ...
Fermentation is crucial to digestion because it breaks down complex carbohydrates, such as cellulose, and enables the animal to use them. Microbes function best in a warm, moist, anaerobic environment with a temperature range of 37.7 to 42.2 °C (99.9 to 108.0 °F) and a pH between 6.0 and 6.4.
In 2001, Snowflake was diagnosed with an unusual form of skin cancer, almost certainly related to his albinism. [18] By 2003, Snowflake's health began to deteriorate. After he began losing interest in his usual activities, isolating himself from other gorillas and exhibiting signs of pain, Snowflake's keepers decided to euthanize him. [ 19 ]