Answer:
C) polysaccharide: glycosidic bond
Explanation:
Monosaccharides are the simplest carbohydrate which cannot be further hydrolysed. Examples of monosaccharides are glucose, fructose. Monosaccharides combined together to form polysaccharides. Polysaccharides are long chains of monosaccharides linked by glycosidic bonds. The glycosidic bond is a covalent bond. It is formed between an anomeric carbon of one cyclic monosaccharide with the alcoholic or OH group of a second monosaccharide. Examples of polysaccharides are starch, glycogen and cellulose.
Answer:
Destruction of the majority of the adrenal cortex would most likely result in decreased levels of mineralocorticoids, sex corticoids and glucocorticoids.
Explanation:
Adrenal glands are conical pyramid shaped glands. A pair of glands present above each kidney. It has an outer adrenal cortex region and inner adrenal medulla. Cortex and medulla secrete different hormones and are also regulated in different ways.
Adrenal cortex has three layers:
a. Outer zona glomerulosa: secretes mineralocorticoids like aldosterone - regulates the metabolism of sodium and potassium.
b. Middle zona fasciculata: secretes glucocorticoids like cortisol - regulates the metabolism of carbohydrates, fats and proteins.
c. Inner zona reticularis: secretes sex corticoids like Androstenedione - stimulates the development of external sexual characteristics in males.
In a condition called Addison's disease, major part of the adrenal cortex is destroyed which results in deficiency of both mineralocorticoids and glucocorticoids. Symptoms include bronze like pigmentation of skin, low BP, low plasma levels of Na+, high plasma levels of K+, nausea, vomiting and diarrhoea.
Answer:
The life cycles of all sexually reproducing plants follow a pattern of alternation between a haploid, sexual generation called gametophyte with a diploid, asexual generation called sporophyte.
This phenomenon of alternation between gametophyte (n) and sporophyte (2n) in the life cycle of a plant is called alternation of generations (Hofmeister, 1851).
Alternation of generations is of two types- isomorphic and heteromorphy. In isomorphic (or homologous) type both the alternating generations are morphologically similar, while in heteromophic (or heterologous) type of alternation of generations both the generations of life cycle are morphologically dissimilar.
Explanation:
Answer:
The correct answer is methane . Nature constitutes most of the substances made up of organic compounds. These compounds have carbon atoms attached with hydrogen atoms with a chemical bond (very few compounds may not have this bond).
