- Introduction
- Physical nature of matter
- Characteristics properties of matter
- States of matter
- Inter conversion of three states of the matter
- Can Matter Change its State?
- Sublimation of NH4CL
- Effect of change of Pressure
- Factors affecting evaporation
- How Does Evaporation Cause Cooling
- Question and Answers
- Matter in Our Surroundings
- Introduction
- What are the Mixtures
- What is a Mixture?Activity
- Concentration of a solution
- What are the solution and its properties?
- solubility
- What is a suspension and its properties
- calculating concentration
- What is a colloidal solution and its properties
- Based on physical states of collides
- Separation of the components of mixtures
- Separation of cream from milk
- Separating two immiscible liquids
- Compounds
- Pure Substances
- How can we obtain different gases from air?
- How can we obtain pure copper sulphate from an impure sample?
- Physical and chemical changes
- Question and Answers
- Matter around Us
- Introduction
- Laws of chemical combination
- Laws of constant proportion
- What is an Atom?
- symbols of atoms of different elements
- Atomic mass
- Dalton’s atomic theory
- What is a Molecule ?, Molecules of elements
- Molecules of compounds
- What is an Ion ?
- Writing chemical formula,simple compounds
- Molecular Mass and MoleConcept
- Mole concept
- Draw backs of dalton atomic model
- Problems on mole concept | part- 1
- Problems on mole concept | part-2
- Problems on mole concept | part-3
- Exercise Problems on atoms and molecules
- Question and Answers
- Atoms and Molecules
- Introduction
- Charged Particles in Matter
- The Structure of an Atom
- Discovery of Neutrons (By J. Chadwick)
- Atomic Models
- Thomson's Atomic Model
- Rutherford's Atomic Model
- Assumption made by Neil Bohr
- Distribution Of Electrons In Various Shells
- Valency
- Atomic Number and Mass Number
- Isotopes
- Question and Answers
- Structure Of The Atom
Muscular tissue
Muscular tissue
1. Muscular tissue constitutes all the muscles of the body of an animal.
2. Muscle cells are elongated and large-sized, so they are called muscle fibers.
3. Muscle cells are typically arranged in a parallel arrangement allowing them to work together effectively.
4. This tissue is responsible for movement in our body. Muscles contain special proteins called contractile proteins, which contract and relax to cause movement.
On the basis of their location, structure, and function, there are following three types of muscle fibers:
1. Striated muscles (stripped, skeletal or voluntary muscles)
2. Smooth muscles (unstriated, visceral or involuntary muscles)
3. Cardiac muscles
Differences between different types of Striated muscles, Striated muscles, Cardiac muscles
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