Science – How do Organism Reproduce? Very Short Answer Type Questions Q.1) How does binary fission differ from multiple fission? Ans) In binary fission, a single cell divides into two equal halves. Amoeba and bacteria divide by binary fission. In multiple fission, a single cell divides into many daughter cells simultaneously. Example-Plasmodium. Q.2) Name the […]
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Science – Control and Coordination Long Answer Type Questions Q.1) What is a synapse? What happens at the synapse between two neurons? Ans) The synpase is the tiny gap between two adjacent neurons. The information acquired (like touching a hot object) at the end of a dendritic tip of a nerve cell sets off a
Science – Control and Coordination Short Answer Type Questions Q.1) How is the movement of leaves of the sensitive plants different from the movement of a shoot towards light? Ans) Movement of leaves of the sensitive plants- Movement of leaves of a shoot towards light- Q.2) Why are some patients of diabetes treated by giving
Science – Control and Coordination Very Short Answer Type Questions Q.1) What are plant hormones? Ans) The chemical substances produced in plants which control growth, development and responses in plants are called plant hormones. Example-Auxins, Gibberellins, Cytokinins and Abscisic acid. Q.2) How do auxins promote the growth of a tendril around a support? Ans) Auxin
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Science – Life Processes Long Answer Type Questions Q.1) What are the differences between autotrophic nutrition and heterotrophic nutrition? Or Write the difference between autotropic nutrition and heterotropic nutrition. Ans) Difference between autotropic nutrition and heterotropic nutrition: – Autotrophic Nutrition Heterotrophic Nutrition Food is synthesised from simple inorganic raw materials such as CO2 and water.
Science – Life Processes Short Answer Type Questions Q.1) What would be the consequences of deficiency of haemoglobin in our bodies? Ans) Haemoglobin is the respiratory pigment that transports oxygen to the body cells r cellular respiration. Therefore, deficiency of haemoglobin in blood can affect the oxygen supplying capacity of blood. This can lead to
Science – Life Processes Very Short Answer Type Questions Q.1) Define nutrition. Ans) The process of taking in food and utilising it is called nutrition. Q.2) What is autotrophic nutrition? Ans) The mode of nutrition in which an organism makes its own food from simpler inorganic substances like CO, and water with the help of
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Science – Carbon and its Compounds Long Answer Type Questions Q.1) How can ethanol and ethanoic acid be differentiated on the basis of their physical and chemical properties? Ans) Ethanol and Ethanoic acid can be differentiated on the basis of their following properties: (1). Ethanol is a liquid at room temperature with a pleasant smell.
Science – Carbon and its Compounds Short Answer Type Questions Q.1) Why are carbon and its compounds used as fuels for most applications? Ans) Carbon and its compounds give large amount of heat on combustion due to high percentage of carbon and hydrogen. Carbon compounds used as fuel have optimum ignition temperature with high calorific
Science – Carbon and its Compounds Very Short Answer Type Questions Q.1) Why is the conversion of ethanol to ethanoic acid an oxidation reaction? Ans) CH₃CH₂OH → Alkaline KMnO₄ + Heat → CH₃COOH Since, in this reaction, oxygen is added to ethanol, hence it is an oxidation reaction. Q.2) What are oxidising agents? Ans) Some substances
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