Rajasthan Board RBSE Class 12 Biology Chapter 12 Nitrogen Metabolism and Nitrogen Cycle RBSE Class 12 Biology Chapter 12 Multiple Choice Questions Question 1. In the root nodules of leguminous plants, the pigment, necessary for nitrogen fixation is? (a) Haemoglobin (b) Leghaemoglobin (c) Chlorophyll (d) Xanthophyll Answer: (b) Leghaemoglobin Question 2. The element, required for the…
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Rajasthan Board RBSE Class 12 Biology Chapter 11 Respiration RBSE Class 12 Biology Chapter 11 Multiple Choice Questions Question 1. What is the site of the Krebs cycle in cells? (a) Nucleus (b) Cytoplasm (c) Plastids (d) Mitochondria Answer: (d) Mitochondria Question 2. How many ATP are formed as a net gain in anaerobic respiration? (a)…
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Rajasthan Board RBSE Class 12 Biology Chapter 10 Photosynthesis RBSE Class 12 Biology Chapter 10 Multiple Choice Questions Question 1. Which metal element is found in the centre of the chlorophyll molecule? (a) Fe (b) Mg (c) Ne (d) Cu Answer: (b) Mg Question 2. PS-II is related to – (a) Photolysis of water (b) Reduction…
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Rajasthan Board RBSE Class 12 Biology Chapter 9 Enzymes RBSE Class 12 Biology Chapter 9 Multiple Choice Questions Question 1. In what respect enzymes are different from catalysts? (a) High diffusion rate (b) Active at high temperature (c) Protein nature (d) Used in the reaction Answer: (c) Protein nature Question 2. The non-protein part of holoenzyme…
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Rajasthan Board RBSE Class 12 Biology Chapter 8 Mineral Nutrition in Plants RBSE Class 12 Biology Chapter 8 Multiple Choice Questions Question 1. Which of the following elements are called micronutrients? (a) Mo, Cu, Zn, Ca (b) Mg, S, K, P (c) Mn, Zn, Cu, Mg (d) Mn, Mo, Cu, Zn Answer: (d) Mn, Mo, Cu,…
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Rajasthan Board RBSE Class 12 Biology Chapter 7 Transpiration RBSE Class 12 Biology Chapter 7 Multiple Choice Questions Question 1. Transportation does not occur from which of the following parts? (a) Leaf (b) stem (c) Root (d) Unripe fruit Answer: (c) Root Question 2. Does maximum transpiration occur from? (a) Stomata (b) Lenticels (c) Hydathodes (d)…
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Rajasthan Board RBSE Class 12 Biology Chapter 6 Absorption of Water and Ascent of Sap in Plants RBSE Class 12 Biology Chapter 6 Multiple Choice Questions Question 1. Soil water which is available to the plants is? (a) Capillary water (b) Runaway water (c) Hygroscopic water (d) Gravitational water Answer: (a) Capillary water Question 2. Which…
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Rajasthan Board RBSE Class 12 Biology Chapter 5 Plant Water Relations RBSE Class 12 Biology Chapter 5 Multiple Choice Questions Question 1. The process of exchange of and from the atmosphere by the leaves is called? (a) Osmosis (b) Diffusion (c) Imbibition (d) Endosmosis Answer: (a) Osmosis Question 2. Which of the following is permeable? (a)…
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Rajasthan Board RBSE Class 12 Biology Chapter 4 Special Methods of Plant Reproduction RBSE Class 12 Biology Chapter 4 Multiple Choice Questions Question 1. Development of new plants without fertilization – (a) Non-fertilization (b) Parthenogenesis (c) Apomixis (d) Micropropagation Answer: (c) Apomixis Question 2. Embryo development without fertilization of the egg is called – (a) Haploid…
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Rajasthan Board RBSE Class 12 Biology Chapter 3 Pollination, Fertilization & Development of Endosperm and Embryo RBSE Class 12 Biology Chapter 3 Multiple Choice Questions Question 1. In which of the following, cleistogamous pollination is found? (a) Viola (b) Papaya (c) Jamun (BlackBerry) (d) Cassia Answer: (a) Viola Question 2. Pollination in Anthocephalus occurs by –…
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