Polysome or polyribosome is an association of several ribosomes on mRNA, as a bead on the thread. They perform translation of mRNA to a... View Article
Anabaena is a genus of cyanobacteria or blue-green algae. It belongs to the kingdom Monera. They have the nitrogen-fixing capability. Also... View Article
Taxon is a unit of classification and represents a category or rank in the hierarchy of classification. The largest taxon is the kingdom, which... View Article
Polysome is a single mRNA attached to many ribosomes involved in protein synthesis. It is found in the cytoplasm or attached to the endoplasmic... View Article
Commensalism refers to the interaction between animals, where one species is benefitted and the other is neither harmed nor benefited. E.g.... View Article
Endoplasmic reticulum does not contain DNA. DNA is primarily present in the nucleus and also present in the mitochondria and chloroplasts.... View Article
Placentation refers to the arrangement of ovules in the ovary of the flower. Types of placentation are parietal, marginal, axile, central, basal,... View Article
Glucocorticoids are steroid hormones secreted from the adrenal cortex and are involved in the regulation of carbohydrate metabolism. E.g.... View Article
Trypsin and chymotrypsin are digestive enzymes that break down proteins. They are secreted as a zymogen (trypsinogen and chymotrypsinogen) from... View Article
Trypsin is secreted as zymogen from the pancreas, which is called trypsinogen. Trypsinogen is the inactive form and is activated by enterokinase... View Article
Trypsin was discovered by Wilhelm Kühne. He observed that it is secreted as an inactive proenzyme (trypsinogen) from the pancreas. Trypsin... View Article
The increased partial pressure of CO2 (pCO2) favours the dissociation of oxyhaemoglobin. This is the reason for the release of oxygen in tissues.... View Article
The oxyhemoglobin dissociation curve relates the percentage saturation of haemoglobin with the partial pressure of oxygen (pO2). It tells about... View Article
When carbon monoxide binds to haemoglobin, carboxyhemoglobin is formed. Carbon monoxide has 200 times more affinity than oxygen for haemoglobin.... View Article
Oxygen is dissociated from oxyhaemoglobin in tissues, where pCO2 is high and pO2 is low. Also Check: Do Lungs Have Positive or Negative... View Article
Haemoglobin binds to oxygen in the alveoli, where pO2 is high and pCO2 is low. Haemoglobin bound to oxygen is called oxyhaemoglobin. 97% of... View Article
The oxygen dissociation curve is obtained by plotting the percentage saturation of haemoglobin with oxygen against the partial pressure of... View Article
