Guard Cells in Plants

Guard cells appear bean-shaped. They are found in pairs, and a gap between them constitute the stomatal pore or aperture. Therefore, two guard cells enclosing stomatal aperture colloquially form a structure called stomata. Guard cells reside in the layer of the leaf epidermis. Stomatal guard cells perform two functional roles like influx or efflux carbon …

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RBC Count Method

The RBC count method comes under haemocytometry, which quantitatively measures the number of RBCs in a blood sample. Haemocytometer or Neubauer’s chamber slide is a manual method to count RBCs. Nowadays, more accurate or automated devices have been developed like electrometric and photometric counter that can count the cell constituents of the blood sample. It …

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Diastase Enzyme

Diastase Enzyme was first discovered from the malt infusion. Anselme Payen and Jean Francois Persoz originally pioneered the existence of the diastase enzyme in the year 1833. Malt diastase, amylase etc., are the alternatives names for the diastase. It is used as a substitute for an enzyme (amylase). Malt, barley seeds, plants, milk, saliva etc., …

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Difference Between Pectoral and Pelvic Girdle

The difference between pectoral and pelvic girdle is mainly due to the following factors like the type of bones contributing to the formation, association of bones and articulations. Collar bone (clavicle) and the shoulder blade (scapula) are the two types of bones contributing to shoulder muscle or pectoral girdle formation. Hip or coxal bones solely …

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Human Skin Layers

Human skin layers constitute the body’s outer covering that shields the internal cells, tissues, and organs against the changing environment, allergens, and pathogens. Human skin is the largest organ among the other components of the integumentary system. Besides, its immunity role, skin regulates body temperature, synthesis of vitamin-D, and sensation of touch, heat, pressure etc. …

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Amitosis Cell Division

Amitosis cell division is a form of direct cell multiplication where the nuclear and cytoplasmic contents of parent cell split between the two daughter cells via a simple cell constriction. It is a kind of growth and multiplication process that predominantly occurs in the acellular or unicellular organisms such as algae, bacteria, cyanobacteria, protozoans and …

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Life Cycle of Plasmodium Species

The life cycle of Plasmodium species generally exist within the two phases (asexual and sexual) or require two living hosts (vertebrates and mosquito). Plasmodium’s asexual phase begins within the female Anopheles mosquito’s stomach, while the sexual phase starts within the human beings’ hepatic cells. Thus, the life cycle of Plasmodium mainly involves two hosts, namely …

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