Economic Biology — Part 1 MCQs with Explanations

Cinchona is the correct answer to “The anti-malarial drug quinine is made from a plant. The plant is”. This question is standard in competitive examination syllabi for Economic Biology.

Puccinia graminis tritici is the correct answer to “The causal organism of black stem rust of wheat is”. This question is standard in competitive examination syllabi for Economic Biology.

a-2, b-1, c-4, d-3 is the correct answer to “Match List-I with List-II and select the correct answer: List-I List-II a. Tikka disease 1. Bajra b. Green ear disease 2. Groundnut c. Fire blight 3. Lemon d. Citrus canker 4. Apple”. This question is standard in competitive examination syllabi for Economic Biology.

Sunhemp is the correct answer to “Which one of the following plants is used for green manuring in India”. This question is standard in competitive examination syllabi for Economic Biology.

phosphorus is the correct answer to “Bone is used as a fertiliser because it contains the plant nutrient”. This question is standard in competitive examination syllabi for Economic Biology.

Histosol is the correct answer to “Which of the following soil contains excessive amount of organic matter”. This question is standard in competitive examination syllabi for Economic Biology.

Euphorbiaceae is the correct answer to “Bio-diesel mostly produced by”. This question is standard in competitive examination syllabi for Economic Biology.

organic fertilisers sustain soil productivity is the correct answer to “Natural organic fertilisers are found to be better than chemical fertilisers because”. This question is standard in competitive examination syllabi for Economic Biology.

cloves is the correct answer to “The dried flower buds are used as a spice in”. This question is standard in competitive examination syllabi for Economic Biology.

agronomy is the correct answer to “Study of field crops is called”. This question is standard in competitive examination syllabi for Economic Biology.

Sugarcane is the correct answer to “Pyrilla is pest of which crop”. This question is standard in competitive examination syllabi for Economic Biology.

Drip irrigation is the correct answer to “Which of the following is a technique of watering plants by making use of narrow tubings which deliver water directly at the base of the plant”. This question is standard in competitive examination syllabi for Economic Biology.

black rust and smut is the correct answer to “Two common fungal diseases of wheat are”. This question is standard in competitive examination syllabi for Economic Biology.

curcumin is the correct answer to “The natural dye present in turmeric is known as”. This question is standard in competitive examination syllabi for Economic Biology.

rennin is the correct answer to “The enzyme that coagulates milk into curd is”. This question is standard in competitive examination syllabi for Economic Biology.

Rice is the correct answer to “The disease 'Blast' is related to which of the following crops”. This question is standard in competitive examination syllabi for Economic Biology.

Fishing is the correct answer to “Which of the following is related to 'Blue Revolution'”. This question is standard in competitive examination syllabi for Economic Biology.

Sodium benzoate is the correct answer to “Which one of the following is used as a food preservative”. This question is standard in competitive examination syllabi for Economic Biology.

caffeine is the correct answer to “Soft drinks such as cocoa contain significant quantities of”. This question is standard in competitive examination syllabi for Economic Biology.

All of the above is the correct answer to “The urea briquettes are used as a form of nitrogenous fertiliser. This is because of which of the following reason”. This question is standard in competitive examination syllabi for Economic Biology.

All of the above is the correct answer to “Which one of the following is used as a bio-fertiliser”. This question is standard in competitive examination syllabi for Economic Biology.

Leghorn is the correct answer to “Which of the following breeds of chicken belongs to Mediterranean class”. This question is standard in competitive examination syllabi for Economic Biology.

Alphonso is the correct answer to “Spongy Tissue' is serious disorder hampering the export of mango variety. It is . . . . . . . .”. This question is standard in competitive examination syllabi for Economic Biology.

Nitrogen is the correct answer to “Which element deficincy causes chlorosis in maize plant”. This question is standard in competitive examination syllabi for Economic Biology.

High Yielding Variety is the correct answer to “HYV refers to”. This question is standard in competitive examination syllabi for Economic Biology.

Colletotrichum falcatum is the correct answer to “Red rot of sugarcane is caused by”. This question is standard in competitive examination syllabi for Economic Biology.

wheat crop is the correct answer to “Karnal Bunt is a disease of”. This question is standard in competitive examination syllabi for Economic Biology.

Beta-carotene is the correct answer to “Which red-orange pigment found in plants and fruits, especially carrots and colourful vegetables, acts as a powerful antioxidant that can benefit our brain, skin, lungs and eye health”. This question is standard in competitive examination syllabi for Economic Biology.

Fruit coat is the correct answer to “From which part of opium plant we get morphine”. This question is standard in competitive examination syllabi for Economic Biology.

Cinchona is the correct answer to “From which one of the following is quinine extracted”. This question is standard in competitive examination syllabi for Economic Biology.

Phenols and Flavonoids is the correct answer to “Tulsi plant has medicinal values due to the presence of the following.”. This question is standard in competitive examination syllabi for Economic Biology.

mule is the correct answer to “The hybrid between horse and donkey is called”. This question is standard in competitive examination syllabi for Economic Biology.

1, 2 and 3 is the correct answer to “With reference to Neem tree, consider the following statements. 1. Neem oil can be used as a pesticide to control the proliferation of some species of insects and mites. 2. Neem seeds are used in the manufacture of bio-fuels and hospital detergents. 3. Neem oil has applications in pharmaceutical industry. Which of the statements given above is/are correct”. This question is standard in competitive examination syllabi for Economic Biology.

fertigation is the correct answer to “The application of fertilisers through the irrigation water is known to be as”. This question is standard in competitive examination syllabi for Economic Biology.

Algae and blue-green algae is the correct answer to “Select the biofertiliser in the following.”. This question is standard in competitive examination syllabi for Economic Biology.

Ammonical is the correct answer to “Which form of nitrogenous fertiliser will be preferred for paddy and potato”. This question is standard in competitive examination syllabi for Economic Biology.

a-1, b-2, c-3, d-4 is the correct answer to “Match List-I (Sources) with List-II (Spices) and select the correct answer: List-I List-II a. Dried fruit of Piper nigrum 1. Black pepper b. Rhizome of Zingiber officinale 2. Ginger c. Dried rhizome of Curcuma longa 3. Turmeric d. Floral buds of Syzygium aromaticum 4. Cloves”. This question is standard in competitive examination syllabi for Economic Biology.

a-3, b-2, c-4, d-1 is the correct answer to “Match List-I with List-II and select the correct answer: List-I (Product) List-II (Source) a. Opium 1. Bark b. Hing 2. Root c. Rubber 3. Fruit d. Quinine 4. Stem”. This question is standard in competitive examination syllabi for Economic Biology.

a-4, b-3, c-1, d-2 is the correct answer to “Match the following columns. Column I Column II a. Aquaculture 1. Silk b. Floriculture 2. Grapes c. Sericulture 3. Flower d. Viticulture 4. Fisheries”. This question is standard in competitive examination syllabi for Economic Biology.

Earthworm is the correct answer to “Which one of the following animals is called Farmer's Friend”. This question is standard in competitive examination syllabi for Economic Biology.