Which of the following is not a classified form of conjugated proteins? (a) Lipoproteins (b) Glycoproteins (c) Metalloproteins (d) Complete proteins Sol: (d) Complete proteins A. Lipoproteins Lipoproteins are complex particles that transport fats (lipids) throughout the body in the bloodstream. They are made up of a combination of proteins, cholesterol, and triglycerides, and are … Read more
Which of the following vitamins is synthesized in the body by intestinal bacteria_______? A. Vitamins B1 B. Vitamins B12 C. Vitamins E D. Vitamins K A. Vitamins B1 B. Vitamins B12 C. Vitamins E D. Vitamins K Vitamins K Vitamins k is a supplement that helps to improve the health of your body. It is a natural product that has been … Read more
Molluscs (Phylum Mollusca) The molluscs, or soft-bodied animals The molluscs are also invertebrate The molluscs having (80,000 species) The molluscs include oysters, mussels, slugs, snails, squids and cuttlefishes. Body form of Molluscs We can divide molluscs into four regions; A dorsal visceral mass which is coiled in the gastropods and in which the internal organs … Read more
Nervous system and sense-organe The most primitive nervous system occurs in the monoplacophorans and amphincurans (e.g. chitons, where it consists of a central nerve ring round the anterior oesophagus with pleurovisceral and pedal cords running back, the former encircling the margin of the mantle, the latter running down the foot, with cross connections between the … Read more
Circulatory system The heart lies within the pericardium which represents part of the much reduced coelom or body cavity. It consists of a single muscular ventricle into which open usually one pair, but in a few cases two pairs, of auricles. Contractions of the ventricle force blood into anterior and posterior aortae; it then circulates … Read more
Enzymes are made up of: (A.) Edible protein (B.) Proteins with specific structure (C.) Nitrogen-containing carbohydrate (D.) Carbohydrates Answer Proteins with specific structure
Order Coronatae Typically inhabitants of deeper waters, the jelly fishes in this order generally have conical or flattened bells and are characterised by the presence of a coronal groove midway between the centre of the bell and the margin. Below this groove is a deeply scalloped bell margin with lap pets and tentacle-bearing organs. The … Read more
Order Semaeostomeae The jellyfishes in this order are among the most familiar members of the class, being those usually seen in temperate waters, and they are also the most typical. There are numerous tentacles round the bell margin and the oral arms are long and frilly. The musculature is usually obvious and there are numerous … Read more
Order Rhizostomeae Members of this order closely resemble the semacostome jellyfishes, the differences being the lack of tentacles round the bell margin and the great increase in size and fusion of the oral arms. These are much-branched and the original grooves of the arms close over to form a canal. The main mouth generally becomes … Read more
In the large jellyfishes or Scyphozoa the medusoid phase is dominant, the polyp, known as the hydra tuba or scyphistoma, being a small tubular organism resembling Hydra. The class comprises five orders as follows: Semaeostomeae, Rhizostomeae, Coronatae. Cubomedusae and Stauromedusae The most noticeable external feature of the class is its four-rayed symmetry. The bell of … Read more