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Class 7 NCERT Solutions, Books, Syllabus & Study Materials

Download free Class 7 chapter-wise NCERT solutions, textbook answers, sample question papers, syllabus, and study notes.

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ICSE / ISC Secondary (10th) Study Guide

Thermodynamics

Basic Terminology :- System - Part of the universe under investigation. Open System: A system that can exchange both energy and matter with its surroundings. Closed System : A system that permits...

ICSE / ISC Secondary (10th) Study Guide

Cell Wall Structure and Function

What is Cell Wall? => Cell wall is a rigid and protective layer around the plasma membrane => Discovered by Robert Hooke in 1665 => Cell wall non-living rigid structure => Found in plants, fungi,...

ICSE / ISC Senior Secondary (12th) Study Guide

Inheritance and Variation

Exceptions of Conclusions of Mendel Incomplete Dominance (1) When neither of the alleles of a character is completely dominant over the other and the F1 hybrid is intermediate between the two...

ICSE / ISC K-12 (All Classes) Study Guide

Underground Stems

The stem of some plants lie below the soil surface. They are non-green, store food as means of perennation and vegetative propagation. They are of following types (a) Rhizome It is a prostrate thick...

ICSE / ISC K-12 (All Classes) Study Guide

Sexual Reproduction

=> The sexual mode of reproduction comprises the process of combining DNA from two different individuals. => There are two germ-cells (responsible for producing a new organism); one is large and...

ICSE / ISC K-12 (All Classes) Study Guide

Genomics and Human Genome project

(1) The term genome has been introduced by Winkler in 1920 and the genomics is relatively new, coined by Thomas Rodericks in 1986. (2) Genomics is the subdiscipline of genetics devoted to the...

ICSE / ISC K-12 (All Classes) Study Guide

Molecular Basis of Inheritance

DNA (1) DNA is a long polymer of deoxyribonucleotides. (2) The length of the DNA depends on the number of nucleotide pairs present in it. (3) Bacteriophage lambda has 48,502 base pairs. Central dogma...

ICSE / ISC K-12 (All Classes) Study Guide

Electric Charges and Fields

Electric Charge :- Charge is the property associated with matter due to which it produces and experiences electric and magnetic effect. Conductors and Insulators :- Those substances which readily...