Class 10 Science and Technology Part 2 – Daily Revision MCQ (English Medium)
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The code on mRNA for one amino acid is made of how many nucleotides?
Chapter 1: Heredity and Evolution
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Answer: C. Three
Each amino acid is coded by a set of three nucleotides, called a 'triplet codon'.In which part of the cell does glycolysis, the first step of aerobic respiration, take place?
Chapter 2: Life Processes in Living Organisms Part 1
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Answer: A. Cytoplasm
Glycolysis occurs in the cytoplasm; one glucose molecule gives two molecules each of pyruvic acid, ATP, NADH₂ and water.During double fertilization in flowering plants, the second male gamete unites with what to form the endosperm?
Chapter 3: Life Processes in Living Organisms Part 2
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Answer: B. Two polar nuclei
One male gamete fuses with the egg cell (zygote); the second fuses with the two polar nuclei to form the endosperm.According to the textbook, how many highly sensitive biodiversity spots (hotspots) have been reported all over the world?
Chapter 4: Environmental Management
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Answer: D. 34
34 biodiversity hotspots are reported worldwide; they once covered 15.7% of the Earth, but only 2.3% is left now.What does a solar photovoltaic cell do?
Chapter 5: Towards Green Energy
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Answer: A. Converts solar energy directly into electrical energy
Solar photovoltaic cells change light energy of sunlight straight into electricity, without a generator or electromagnetic induction.Animals of which phylum move with the help of tube feet, which also help them capture prey?
Chapter 6: Animal Classification
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Answer: C. Echinodermata
Echinoderms (e.g. starfish, sea urchin) perform locomotion with tube feet, which are also used to capture prey.When milk is fermented by lactobacilli to make dairy products, the lactose sugar in milk is converted into which acid?
Chapter 7: Introduction to Microbiology
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Answer: B. Lactic acid
Lactobacilli convert lactose into lactic acid, and this lactic acid coagulates the milk proteins.The gene put into Bt cotton, which makes a toxin fatal to the bollworm, was taken from which bacterium?
Chapter 8: Cell Biology and Biotechnology
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Answer: D. Bacillus thuringiensis
Bt cotton carries a gene from Bacillus thuringiensis; the toxin it makes in leaves and bolls kills the bollworm.According to the textbook, what is social health?
Chapter 9: Social Health
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Answer: B. A person's ability to establish relationships with other persons
Social health is a person's ability to establish relationships with others and to adapt behaviour to changing social conditions.Who is the chairman of the District Disaster Management Authority?
Chapter 10: Disaster Management
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Answer: C. Collector
Under the Disaster Management Act, 2005 structure, the District Authority is chaired by the Collector (national: PM, state: CM, taluka: Tahsildar).
Class 10: MCQ in other subjects
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All questions are written by PadhaiNotes in our own words from the chapters of the official Maharashtra State Board Balbharati textbook (ebalbharati.in). Each question shows its chapter.