Camillo Golgi, discovered the method of staining individual cell structures. He used weak solution of silver nitrate to study golgi apparatus.

Rusting of an object made of iron is called rusting. Rust is a chemical change because rust is a chemical compound (hydrated iron oxide), completely different from the element iron (Fe).

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The nature of matrices varies according to their function. For example, cartilage contains calcium salts as it supports bones while muscles contain contractile proteins for their movement function.

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(i) melting of iron metal (ii) Rusting of iron (iii) Bending of an iron rod (iv) Drawing a wire of iron metal

A mixture of sulphur and carbon disulphide is a heterogeneous colloid and shows the Tyndall effect. The particles in a colloidal solution are so large that they can scatter light. This phenomenon of scattering of light by colloidal particles is ...

Cellulose, it is a complex substance and provides structural strength to all plants. Plant cell wall is mainly made of cellulose. The cell wall of bacteria is made up of “PEPTIDOGLYCAN”.

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Class IX Science MCQ Extra Questions Answers Class 9th Science Session 2022-23 Class 9 Science Terminal Exams MCQ Solutions 9th Science Terminal Exam Based MCQ Extra Questions