The epiglottis is a flap made of cartilage in the back of the throat that closes when you swallow to direct food to the esophagus/stomach. Otherwise it is open allowing...
1 Answers 1 viewsIn open circulatory system the body tissues and organs are directly bathed in blood. The blood flows in body cavity called haemolymph.In most of the animals having open circulatory system...
1 Answers 1 viewsEsterification is a reversible reaction: carboxylic acid + alcohol $rightleftharpoons$ ester + water Le Chatelier's principle applies here, if we have more water present, the position of equilibrium will move...
1 Answers 1 views$NaCl$ absorptions are transparent to most of the $IR$ spectrum; there are absorbtions at $400-600cm^(-1)$, which leaves most of the spectrum transparent.
1 Answers 1 viewsPaula Bruice discusses this in "Organic Chemistry", 6th ed. It used to be that "R" groups were radicals, yes. It was once said that -OH in Ethanol (EtOH) was attached...
1 Answers 1 viewsI think you refer to the saponification reaction....i.e. the which here is the formation of a carboxylate salt from an ester under BASE hydrolysis...i.e. $R^(1)(C=O)OR^2+HO^(-) stackrelDeltararrR^(1)(C=O)OH+""^(-)OR^2$ Now TWO products result...
1 Answers 1 viewsAlkenes are unsaturated molecules, which means they do not have all the hydrogen they could have. This is because there is at least one double bond between carbons. This...
1 Answers 1 viewsNote that the skin is the major barrier between the inside and outside of your body. The outermost layer of the skin — the epidermis is a keratinized,...
1 Answers 1 viewsResearchers found that the particular pattern of the ridges and crevices of the brain's convoluted surface, which are called gyri and sulci, depends on two simple geometric parameters: the gray...
1 Answers 1 viewsGlands are of two types exocrine and endocrine. Secretion from exocrine gland is released thro ducts. While endocrine gland secretion is released without duct therefore called endorine.
1 Answers 1 views