Functions of Organelles of the Animal Cell

Investigation of intracellular structures of the cell reveals the organization of the cytoplasm into compartments (called organelles) and the location of each type of organelle within the cell. In this article, we describe the basic functions of the major organelles in animal cells. 1. Endosomes: They take up soluble macromolecules from the cell exterior. Although […]

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Vitamin C: Sources, Functions, deficiency, and Toxicity

In this article, we shall consider the food sources, functions, general uses, deficiency, and toxicity of vitamin C. Vitamin C L-Ascorbic acid, also known as L-xyloascorbic acid, 3-oxo-L-gulofuranolactone (enol form), L-3-ketothreohexuronic acid lactone, antisorbutic vitamin and vitamin C, has the chemical formula C6H8O6 and a molecular weight of 176.12. Vitamin C is a water-soluble vitamin […]

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Factors that Influence Basal Metabolic Rate (BMR)

In this article, we examine the different factors that influence basal metabolic rate (BMR). Some of the factors include body temperature, age, sex, race, emotional state, climate and circulating levels of hormones such as catecholamine‚Äôs (epinephrine and norepinephrine) and thyroid hormones. How do you define Basal Metabolic Rate? Basal metabolic rate (BMR) refers to the […]

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Growth Hormone; Production, Functions and Control

In this article, we discuss growth hormone under the following headings, Chemical Nature, Functions,¬†Control, deficiency and excess. Overview Human growth hormone (hGH, somatropin) is a polypeptide hormone synthesized and secreted by the anterior pituitary gland. It plays important metabolic roles which include stimulation of cellular uptake of amino acids and protein synthesis. Among the many […]

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