Biology MCQs

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Wind is the most common media of pollination in flowers without petals. Pollination refers to the transfer of pollen from a male part of a plant to a female part of a plant which enables fertilisation and the production of seeds, most often by an animal or by wind.

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Rhizobium Found in roots of legumes, like Peas, grams, Pulses etc, where it fixes atmospheric nitrogen as ammonia, which is then converted into useful amino acid.

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Silicone hydrogel and regular hydrogel lenses both are made of plastics that are hard when dry but readily absorb water and become soft and gel-like when hydrated. They are most commonly used in making Contact Lenses.

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The pylorus is the furthest part of the stomach that connects to the duodenum. It is divided into two parts, the antrum and the pyloric canal. The antrum connects to the body of the stomach, and the pyloric canal connects to the duodenum.

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A cornea transplant also called as keratoplasty is a surgical procedure to replace part of your cornea with corneal tissue from a donor. Cornea does not link up with blood vessels, this makes the Cornea Transplantation easy and used more widely.

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Butter is a type of dairy product that is made by churning cream or milk until the fat particles in the milk coalesce to form a solid mass. The resulting solid mass is known as butter and it is composed mostly of butterfat, which is a type of fat that is found in milk. To be more specific, butter is a fat that is dispersed in milk. This means that the butterfat is evenly distributed throughout the milk, giving it a smooth and creamy texture. While butter is most commonly made from cow’s milk, it can also be produced from the milk of other mammals, such as sheep, goats, buffalo, and yaks.

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Blood plasma is the liquid component of whole blood, and makes up approximately 55% of the total blood volume. It is composed primarily of water with small amounts of minerals, salts, ions, nutrients, and proteins in solution. In whole blood, red blood cells, leukocytes, and platelets are suspended within the plasma.

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Polymerase enzyme plays an important role in adding the building blocks to the primer in a sequence determined by the DNA template. It synthesizes long chains of polymers or nucleic acids.

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Bryophytes are an informal group consisting of three divisions of non-vascular land plants: the liverworts, hornworts and mosses. They play a vital role in regulating ecosystems because they provide an important buffer system for other plants.

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Vitamin B is involved in the breakdown of energy molecules such as glucose. Vitamin B are a class of water-soluble vitamins which play an important role in cell metabolism.