Class 10 Our Environment Notes

Our Environment Notes Environment Everything that surrounds us is known as environment. Biodegradable Substance Substances that are broken down by biological processes are said to be biodegradable.e.g.: cotton, jute etc. Non-biodegradable Substance Substances that are not broken down by biological processes are said to be non-biodegradable.e.g.: plastic, metals etc. ➢ Micro organisms releases enzymes which […]

Class 10 – Heredity and Evolution – Previous Years Questions

Heredity and Evolution – Previous Years Questions What is heredity? [CBSE 2014] [1 Marks] If you are asked to select a group of two vegetables, out of the following, having homologous structures which one would you select? Carrot and radish Potato and sweet potato Potato and tomato Lady finger and potato [CBSE 2016] [1 Mark] […]

Class 10 – Heredity and Evolution – Notes

Heredity and Evolution – Notes Heredity:- The transmission of traits/characters from one generation to next generation is called heredity. Genetics:- The study of heredity and variation is called genetics. Dominant:- The characteristics which is expressed in an organism is called dominant. Recessive:- The trait which is not expressed in an organism is called recessive. Homozygous:- […]

Class 10 – Control and Coordination – Previous Years Questions

Control and Coordination – Previous Years Questions . Name one gustatory receptor and one olfactory receptor present in human beings. Write a and b in the given flow chart of neuron through which information travels as an electrical impulse. [CBSE 2018] [2 Marks] How do auxins promote the growth of a tendril around a support? […]

Class 10 – How do Organisms Reproduce – Important Questions

How do Organisms Reproduce – Important Questions Name the hormones responsible for the changes in boys and girls at the time of puberty. . Describe the various steps involved in the process of binary fission with the help of a diagram. Why do multicellular organisms use complex way of reproduction? . Describe the role of […]

Class 10 How do Organisms Reproduce? Notes

How do Organisms Reproduce? – Notes Reproduction:- The process by which the organisms produce young ones of their own kind is called reproduction. Types of reproduction:- Asexual reproduction Sexual reproduction Asexual reproduction:- The type of reproduction in which a single parent is involved is called asexual reproduction. Types of asexual reproduction:- Fission:- The type of […]

Class 10 Control and Coordination Notes

Control and Coordination Notes Stimulus:- The change in the environment to which an organism response and react is called stimulus. Receptors:- The group of cells present in sense organs which are sensitive to change in environment are called receptors. There are five types of receptors:- Gustatory receptor Olfactory receptor Photo receptor Phono receptor Thermo receptor […]

Class 10 Life Processes Previous Years Questions

Life Processes Previous Years Question List the steps of preparation of temporary mount of a leaf peel to observe stomata. [CBSE 2018] [2Marks] List in tabular form two differences between pepsin & trypsin. [CBSE 2019] [2 Marks] List four precautions in proper sequence which we observe while preparing a temporary mount of leaf peel. [CBSE […]