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Chemical composition of the substances can be determined according to the two types. One is qualitative and the other is quantitative. Qualitative analysis - This is a type of chemical analysis which is execute to identify the components of the mixture.

Continue reading "How to Analyse Chemical Composition? | Quantitative Analysis | X ray"

All molecules of the living organisms or chemicals of living organisms which are functional within them are known as biomolecules. It is associated with almost 1000 types of chemical reaction in animal cell. Different types of chemicals present in the cells are called

Continue reading "Explain about Biomolecules | Definition | Macromolecules | Animal Cell"

Secondary growth is observed in vascular cambium and phellogen of dicot roots. It is seen that vascular cambium can be formed secondarily from conjunctive parenchyma and part of pericycle just lying opposite to the protoxylem points.

Continue reading "Secondary Growth of Roots | Cork Cambium or Phellogen | Primary Xylem"

This in 1954 first was the first to observed microbodies. Microbodies are spherical or oval in shape with the diameter of 0.2 to 1.5 micrometer. It has outer covering with lipid and lipoprotein membrane. It contains different enzymes for catalase but do not contain any

Continue reading "Explain Microbodies | Definition | Glyoxisomes|Glycosome|Hydrogenosome"

Definition of Centrosome - Centrosomeis a more or less spherical mass of dense cytoplasm situated close to the nucleus and contains a pair of cylindrical bodies which are concerned with spindle formation during cell division. In 1888 Boveri first discovered these organelles

Continue reading "Centrosome and Centrioles | Distribution of the Centrosome | Structure"

Robert Brown in 1831 first discovered a double membrane covered protoplasmic body that contains hereditary information. A cell usually contains a single nucleus (uninucleate, monokaryote).

Continue reading "Explain about Nucleus | Nuclear Envelope | Nucleoplasm |Nuclear matrix"

Definition – Cilia and flagella are hair like micro tubular organelles projecting from the cell surface into the extra cellular medium and are concerned with cell motility.

Continue reading "Cilia and Flagella | Definition | Location | Origin |Types of Flagella"

Cytoskeletal structures are fibrous or fine tubular structures that consists of supportive structure of cell. The term cytoskeletal is coined by Koltzoff in 1928.

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Ribosomes are small ,granular, non- membranous structure which is mafe up of RNA and protein and concerned with protein synthesis. In 1943 presence of ribosomes are first observed by Claude and later in 1955 Palade described a detailed description of it by define the name.

Continue reading "Explain about Ribosomes | Distribution and Origin of Ribosomes"

Plastids are semi-autonomous cell organelles which are surrounded by double membrane envelope, take part in storage and synthesis of organic compounds which occurred in some plant and protistans.Plastidome consists of all the whole plastids complex of cell.

Continue reading "Define the Plastids | Structure of Plastids | Types of Plastids"

The term mitochondria can be broken into mito and chondrion. The term “mito “ means fibril and” chondrion “means granule. Definition of mitochondria - The rod like filamentous, spherical or oval, double membrane bound cytoplasmic organelles of eukaryotic cells ,which are

Continue reading "Explain about Mitochondria | Functions of Mitochondria | Distribution"

Endoplasmic reticulum-It is discovered by Porter et al and Thompson in 1945. The name was given by Porter in 1953.It is a system of membrane lines channels found in all eukaryotic cells except mature erythrocytes.

Continue reading "Endomembrane System | Endoplasmic Reticulum | Golgi Apparatus"

Definition of cell wall- The thick and rigid , nonliving covering present just outside the plasma membrane of plant cells is called cell wall. It is discovered by Robert Hooke in 1665 while observing cell in the section of cork.

Continue reading "Cell Wall | Definition of Cell Wall |Middle Lamella|Primary, Secondary"

Definition - Cell membrane is the thin, elastic and semipermeable living membrane that surrounds the protoplasm of a cell is called cell membrane o plasma membrane or plasma lemma.

Continue reading "Explain about Cell Membrane | Structure of the Cell Membrane"

Definition of eukaryotic cell- It is a type of cell which contains well defined nucleus, membrane bound organelles. Examples of eukaryotic cell- Eukaryotic cells are present in all higher plants and animals.

Continue reading "Explanation of Eukaryotic Cell | Definition | Type of Cell Organelles"

Cell envelope is generally made up of three things in case of prokaryotic cells. These three things are- 1. Glycocalyx-It is located as an external covering around the cell membrane of some animal cell which is made up of glycoproteins -type of mucopolysacharides

Continue reading "Cell Envelop and its Modification | Prokaryotic Cells | Explain |First"

Definition of ribosome- Ribosome is the organelles which is associated with protein synthesis. It is made up of two subunits. The larger one is spherical in shape and the smaller one is oval in shape. Ribosomes are attached with the endoplasmic reticulum and formed rough

Continue reading "Ribosomes and Inclusion Bodies | Definition | Stored Food | Pigments"

Scientist Dougherty first classified the cells in 1957. Cells are classified on the basis of structural organisation of their nucleus into two main types that are prokaryotic cells and eukaryotic cell. The term “pro” means premitive and “karyoplasms” means nucleus.

Continue reading "Prokaryotic Cells | Definition of Prokaryotic Cell and Eukaryotic Cell"

This is a worksheet which will provide few problems on the divisibility rule of 2, 3, 4, 5, 6, 7, 8, 9, and 10. 1. Check whether the following numbers are divisible by 2 or 3 or both? (i) 2562 (ii) 5693 (iii) 2201 (iv) 7480 (v) 5296 (vi) 4062 (vii) 4568 (viii) 1425 (ix) 1110

Continue reading "Worksheet on Divisibility Rules | Questions on Test of Divisibility"

Here are few problems on the divisibility rules of 2, 3, 4, 5, 6, 7, 8, 9, and 10 which will help the learners in revising their concepts on the divisibility rules. 1. Check whether 3456 is divisible by 2? Solution: The last digit is an even number (i.e. 6) hence 3456 is

Continue reading "Problems on Divisibility Rules | Rules to Test of Divisibility | Test"

5th grade math

Continue reading "5th Grade Math | Numbers |Decimal | Fraction | Geometry |Data & graphs"

The divisibility rule of 10 states that If the last digit of a number is 0 then the given number is divisible by 10. For eg: Check whether 5400 is divisible by 10 or not? Solution: As the last digit of the number is 0 hence, 5400 is divisible by 10

Continue reading "Divisible by 10|Test of Divisibility by 10|Rules of Divisibility by 10"

This rule states that a number is divisible by 9 if the sum of its digits of the number is divisible by 9 For eg: Check whether 729 is divisible by 9 or not? Sum of the digits = 7 + 2 + 9 = 18 Now 18 is divisible by 9 hence, 729 is also divisible by 9 Here are few examples

Continue reading "Divisible by 9 | Test of Divisibility by 9 |Rules of Divisibility by 9"

The most common method to check whether a number is divisible by 8 is to divide and see if the quotient is a whole number or not? If the quotient is a whole number then the given number is divisible by 8. But there is an easier way to check by using the divisibility rule.

Continue reading "Divisible by 8 | Test of Divisibility by 8 |Rules of Divisibility by 8"

This rule states that if the difference between twice the digit at units place and the number formed from the remaining digits of the given number is divisible by 7 then the whole number is divisible by 7.

Continue reading "Divisible by 7 | Test of Divisibility by 7 |Rules of Divisibility by 7"

This topic on divisible by 6 will discuss about the divisibility rule of 6 and few example on the same. Divisibility rule of 6: A number is divisible by 6 if the prime factor of that is 2 & 3 is divisible by 6. For Example: 216 216 is divisible by 2 as the last digit 6 is

Continue reading "Divisible by 6 | Test of divisibility by 6 |Rules of Divisibility by 6"

This topic on divisible by 5 will discuss on the divisibility rule of 5 and illustrate few example on the same. Divisibility Rule of 5: If a number ends with 0 or 5 then the number is divisible by 5. For Example: 550 Since the number ends with 0 hence the number is divisible

Continue reading "Divisible by 5 | Test of divisibility by 5 |Rules of Divisibility by 5"

This topic i on divisibility rule of 4 and will provide examples on the same. Divisibility Rule of 4: If the last two digits of the number is divisible by 4 then the whole number is divisible by 4 For eg: 524 The last two digit of the number is 24 which is divisible by 4.

Continue reading "Divisible by 4 | Rules of Divisibility by 4|Divisibility Rules & Tests"

This topic is on the divisibility rule of 3 and few examples based on the topic. If the sum of the digits is divisible by 3 then the whole number is divisible by 3. For example 519 The sum of the digits = 5 + 1 + 9 = 15 15 is divisible by 3 hence 519 is also divisible by 3

Continue reading "Divisible by 3 | Rules of Divisibility by 3|Divisibility Rules & Tests"

This topic would deal with the divisibility rule of 2 and few sums on divisibility rule of 2. Numbers that are ending with 0, 2, 4, 6, and 8 are divisible by 2. That means numbers ending with 0 or multiples of 2 are divisible by 2. We know that numbers which are multiples of

Continue reading "Divisible by 2 | Divisibility Rule of 2 | Test of Divisibility by 2"

This topic deals with the properties of divisibility which will help us in doing our multiplication and division easy. These rules will help us to determine quickly the factors of certain number, the divisibility criteria of certain number and helps in overall strengthening

Continue reading "Properties of Divisibility | Divisibility Property |Divisibility Rules"

1. List the first five multiples of the following numbers: 2. Choose the numbers that are factors of 24. 3. 3. Choose the numbers that are multiples of 15. 4. Choose the numbers which are multiple of 3 as well as factor of 36

Continue reading "Worksheet on Multiples and Factors | List the First Five Multiples"

This topic would deal with divisibility rules. There are certain divisibility rules of certain numbers which help in determining that by which number the given number is divisible. Divisibility rules are an effective tool for determining with which numbers a given number

Continue reading "Divisibility Rules | Divisibility Rules from 2 to 12|Divisibility Test"

This topic would deal with multiples and factors. There is one common element between the both that is both involve multiplication. We multiply the factors to get a particular number and multiples are the product that we get after multiplying a given number by the integer.

Continue reading "Multiples and Factors | Difference between Factors and Multiples |Math"

This topic would provide a worksheet to the learners on H.C.F and L.C.M which will contain various types of sums and hence will serve as a scope for thorough practice of the students.

Continue reading "Worksheet on Word Problems on HCF and LCM | HCF & LCM Word Problems"

We have already learnt H.C.F, L.C.M and the relationship between the two and now we will learn on how to do word problems on H.C.F. and L.C.M. Note: In word problems on H.C.F. and L.C.M we have to remember two points: • When we are asked to find out maximum, highest

Continue reading "Word Problems on H.C.F. and L.C.M. | Highest Common Factor | Lowest Co"

This topic will provide worksheet to students on H.C.F and L.C.M which will help to judge themselves their level of understanding of the topic and the areas where they need more careful study and analysis. This worksheet will serve as a yardstick for measuring the level of

Continue reading "Worksheet on H.C.F. and L.C.M. | HCF × LCM = 1st Number × 2nd Number"

This topic discusses about the relationship between H.C.F and L.C.M in case of two numbers. The relationship between H.C.F and L.C. M of two number states that: H.C.F × L.C.M = First number × Second number Hence from this relationship we can find the following: H.C.F

Continue reading "Relationship between H.C.F. and L.C.M. |HCF× LCM=1st Number×2nd Number"

This topic would provide examples on how to find least common multiple of three numbers. Various examples on finding L.C.M would help the learners in understanding the topic better. Here are few examples illustrated on finding the least common multiple of three numbers using

Continue reading "Examples to Find Least Common Multiple of Three Numbers by using Divis"

This topic would provide examples to find least common factor by using division method. This topic will help learners to clear their doubts and improve their understanding and knowledge on how to find out least common multiple (L.C.M) by division method.

Continue reading "Examples to Find Least Common Multiple of Two Numbers |Division Method"

This topic discusses about finding the lowest common multiple using division method. Steps to find the loqest common multiple using the division method: Step 1: Write the numbers in a row separating by commas Step 2: Then divide the given numbers (if possible both the

Continue reading "To Find Lowest Common Multiple by using Division Method | Examples"

This topic would provide various examples on finding the least common multiple using the method of prime factorization. Here are few examples illustrated on finding the least common multiple using the prime factorization method. 1. Find the least common multiple (L.C.M) of

Continue reading "Examples to find Least Common Multiple by using Prime Factorization"

This topic would discuss about how to find the least common multiple by using prime factorization method. Steps to find out the least common multiple by using prime factorization method: •First find all the prime factors of the given number .Then write all the prime factors

Continue reading "To Find Least Common Multiple by using Prime Factorization Method"

In the last topic we have discussed about common multiples that is same multiples of two or more numbers. Now here we will discuss about the least common multiple that is the smallest common multiple of two or more numbers. Here are few examples illustrated on least common

Continue reading "Least Common Multiple (L.C.M.) | Lowest Common Multiple | Examples"

This topic would deal with common multiples. If some of the multiples of two or more number are same then those same multiples are termed as common multiples. Here are few examples illustrating common multiples: List the two common multiples of 5 and 6

Continue reading "Common Multiples | What is Common Multiples? | Three Common Multiples "

This topic would deal with multiples. Multiples of a number are actually the tables of a certain number. If we are talking about multiple of 2 then it is actually the tables of 2. When we have learnt table we have learnt the tables till 10 or 12 that is till 2 multiplied

Continue reading "Multiples | Important Facts about Multiple | Even and Odd Multiples"

This topic would discuss about finding highest common factor using the division method. We have already learnt finding the highest common factor by prime factorization method but it is not suitable when we are dealing with large numbers. Division method is quite convenient

Continue reading "Highest Common Factor of Three Numbers by using Division Method"

We have already learnt the method of finding highest common factor using division method. Here are few more examples given to clear your understanding, concepts and improve your knowledge on how to find H.C.F. this topic would provide a wide range of examples will help the

Continue reading "Find Highest Common Factor of Two Numbers by using Division Method"

This topic would discuss about finding the highest common factor of three numbers using the division method. We have learnt in our last topic about finding the highest common factor of two numbers. While doing with three numbers first we will find the highest common factor

Continue reading "To Find Highest Common Factor by using Division Method | Examples"

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