Biology MCQs

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Malaria is an acute febrile illness caused by Plasmodium parasites. Malaria is a parasitic disease that is transmitted to humans through the bite of infected mosquitoes.

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Streptococcus Pyogenes, Escherichia Coli, and Pseudomonas Aeruginosaare examples of harmful microbes. They can be transmitted through a variety of mediums in our bodies.

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Ringworm or round red or silver type superficial fungal infections of the skin are caused by species of Trichophyton, Microsporum, and Epidermatophyton. There are dry scaly lesions on the skin, nails, and scalp that cause intense itching.

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Keratin is a family of fibrous structural proteins involved in making up the outer layer of human skin. It is also the key structural component of hair and nails. Cells in the epidermis contain a structural matrix of keratin, which makes this outermost layer of the skin almost waterproof, and along with collagen and elastin, gives skin its strength. It also makes up fish scales and crustacean shells, bird feathers and beaks, animal horns and hooves.

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Glycolysis, part of cellular respiration, is a series of reactions that constitute the first phase of most carbohydrate catabolism, catabolism meaning the breaking down of larger molecules into smaller ones. Glycolysis breaks down glucose and forms pyruvate with the production of two molecules of ATP. The entire process from conversion of glucose to pyruvate is anaerobic that is it does not take place in presence of oxygen.

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Cnidarian, also called coelenterate, any member of the phylum Cnidaria (Coelenterata), a group made up of more than 9,000 living species. ? Mostly marine animals, the cnidarians include the corals, hydras, jellyfish, Portuguese men-of-war, sea anemones, sea pens, sea whips, and sea fans.

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Abscisic acid also called plant stress hormone is responsible for responsible for dormancy of various types. It maintains dormancy in seeds and buds, stimulates the closing of stomata. Gibberellins are responsible for cell division and growth in cell size.

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The word “protoplasm” comes from the Greek protos for first, and plasma for thing formed, and was originally used in religious contexts. It was first used for living cells by J. E. Purkinje, a Czech anatomist and physiologist, in 1839. He used protoplasm for the fluid substance of a cell.

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Proteins from animals are called ‘first class’ proteins – they provide all the essential amino acids, including those that the body can’t make. Proteins from plants are ‘second class’ proteins.

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Lipase is an enzyme made by pancreas, an organ located near stomach. Lipase helps body digest fats. It’s normal to have a small amount of lipase in blood. But, a high level of lipase can mean you have pancreatitis, an inflammation of the pancreas, or another type of pancreatic disease.