Biology MCQs

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Nutrition is plants is classified into two main categories: autotrophic and heterotrophic. Heterotrophic plants are further classified into saprophytes, parasite and insectivores.
Saprophytes are those plants which grow and live on dead organic matter including animal and plant remains
Insectivorous plants are autotrophic but develop adaptations to trap insects in order to supplement the deficiency of Nitrogen in the soil. They feed on insects. They are generally found in nitrogen deficient habitats and hence to compensate the loss, they use insects as a source of nitrogen.

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Spiders use their silk to make web. Spider silk is made out of protein. 

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A goitre which is also called a bronchoce is a swelling in the neck. It is commonly developed as a result of iodine deficiency or the inflammation of the thyroid gland.

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A ripe Tomato is Red, Leaves are Green, Flower is Purple, Hair is Black. The pigments responsible for these colors are Lycopene, Chlorophyll, Anthocyanin, Melanin respectively.

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Monosaccharides are simple carbohydrates molecules that cannot be broken down into smaller molecules of other carbohydrates. Glucose and fructose are examples of Monosaccharides.

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Bionics or biologically inspired engineering is the application of biological methods combined with engineering. It is that branches of science which studies the functions, characteristics, and phenomena observed in the living world and the application of this knowledge to world of machine.

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Liquorice root, or Mulethi, is a potent expectorant that has been utilized in Ayurvedic medicine since ancient times. The powdered root is used in “Jastimadhu” tooth powder. Many cough syrups incorporate Liquorice as one of their components. It is also used to treat mouth and peptic ulcers, attesting to its versatile medicinal properties. Liquorice root is well-regarded for its numerous health benefits apart from its sweet flavour.

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Lysosomes are membrane-bound cell organelles that contains digestive enzymes and are involved with various cell processes. They break down excess or worn-out cell parts and may be used to destroy invading viruses and bacteria.

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Birds have unique respiratory systems with extra air sacs that provide continuous airflow and efficient oxygen exchange, even at high altitudes where air is thinner. These adaptations help birds avoid respiratory trouble during flight.

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Mitochondrion carries on the process of cell respiration converting glucose to ATP energy the cell can use. An organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production occur. It has a double membrane, the inner part being folded inwards to form layers.