The key difference between peptic and oxyntic cells is that peptic cells secrete pepsinogen and gastric lipase while oxyntic cells secrete hydrochloric acid and intrinsic factor. Gastric glands are mostly exocrine glands that secrete various enzymes, mucus, hydrochloric acid and hormones. They are present beneath the gastric pits within the gastric mucosa. Chief cells or peptic cells and parietal cells or […]
Difference Between Meissner’s and Auerbach’s Plexus
The key difference between Meissner’s and Auerbach’s plexus is that Meissner’s plexus is in the submucosal tissue of the intestine, while Auerbach’s plexus is between the circular muscle layer and longitudinal muscle layer in the lower esophagus, stomach, and intestines. Digestive nerve plexus or enteric nerve plexus are intricate layers of nervous tissue. They are […]
Difference Between Nitrogen-fixing Bacteria and Denitrifying Bacteria
The key difference between nitrogen-fixing bacteria and denitrifying bacteria is that nitrogen-fixing bacteria convert atmospheric nitrogen into ammonium or ammonia in the soil while denitrifying bacteria convert nitrates in the soil into atmospheric nitrogen. The nitrogen cycle is one of the main biogeochemical cycles. There are several steps in the nitrogen cycle. Among them, nitrogen […]
Difference Between Type 1 and Type 2 Pneumocytes
The key difference between type 1 and type 2 pneumocytes is that type 1 pneumocytes are thin and flattened alveolar cells that are responsible for the gas exchange between alveoli and capillaries, while type 2 pneumocytes are cuboidal alveolar cells that are responsible for the secretion of pulmonary surfactants that reduce surface tension in the […]
Difference Between Composite Transposons and IS Elements
The key difference between composite transposons and IS elements is that composite transposons are a type of transposons that carry accessory genes such as antibiotic resistance genes, while IS elements (or Insertion Sequence elements) are transposable elements that carry only genes that code transposase that catalyze the transposition activity. A transposon is a fragment of DNA that can change […]
Difference Between Capsule and Glycocalyx
The key difference between capsule and glycocalyx is that capsule is an organized, well defined, condensed extracellular layer that is tightly bound to the cell envelope of bacteria, while glycocalyx is an additional layer composed of polysaccharides and/or polypeptides outside the cell wall of bacteria. Some bacteria have an additional layer called glycocalyx outside the […]
Difference Between Unambiguous and Degenerate Code
The key difference between unambiguous and degenerate code is that genetic code is an unambiguous code since a particular codon always codes for the same amino acid, while genetic code is a degenerate code since one amino acid may be specified by more than one codon. Genes are the structural units of heredity. There is […]
Difference Between Freeze Fracture and Freeze Etching
The key difference between freeze fracture and freeze etching is that freeze fracture is the breaking of a frozen specimen to reveal internal structures, while freeze etching is the vacuum-drying of an unfixed, frozen and freeze-fractured biological sample. Freeze fracture and freeze etching are two procedures that are helpful to study details of three-dimensional structures […]
Difference Between Fabaceae Solanaceae and Liliaceae
The key difference between Fabaceae Solanaceae and Liliaceae is that Fabaceae is a family of flowering plants that produce a typical fruit called legume while Solanaceae is a family of flowering plants that bear five segmented flowers and produce toxic alkaloids, and Liliaceae is a family of monocotyledonous flowering plants that bear six segmented flowers. […]
Difference Between ABO and Rh Blood Grouping System
The key difference between ABO and Rh blood grouping system is that ABO blood grouping system is based on the presence or absence of the antigens A and B on the surface of the red blood cells, while Rh blood grouping system is based on the presence or absence of the Rh antigen (Rh factor) […]
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