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Answered 2 days ago Tuition/BA Tuition/General Psychology

Difference in thought and abstact thought?

Sutapa Bairagi

Freelance counselor/Special educator

Thought is an abstract concept well in itself, and majorly can be classified into concrete and abstract thought. Concrete thought is based upon facts, concepts etc whereas abstract thought is more of your reflection based on your experienced reality.
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Asked 3 days ago CBSE/Class 11/Commerce/Economics Tuition/BA Tuition/Environmental Study

Hello everyone I can teach Economics and Environmental  science from class 9 to graduation.

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Answered on 20 Jun Tuition/BTech Tuition Tuition/BA Tuition/Bio-Chemistry

Rahul Gautam

Maths Master

Maximum tutors charges per hourly for higher classes depend on the stream but definitely more than ? 700 per hour
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Lesson Posted on 20 Jun Tuition/BA Tuition/Education

CURRENT ELECTRICITY

M.G.RAGHU R.

I have more than 20 Years of experience in teaching PHYSICS for CBSE, ICSE AND STATE BOARD syllabus....

What is Current Electricity? It is the study of flow of free electrons in a conductor. How can we measure electric current? Electric current is measured by the ratio of the charges flowing through a conductor per unit time. That means I = Q / t where I - current, Q - charge, t - time of... read more

What is Current Electricity? 

It is the study of flow of free electrons in a conductor.

 

How can we measure electric current?

Electric current is measured by the ratio of the charges flowing through a conductor per unit time.

That means  I =  Q / t  

where I - current, Q - charge, t - time of flow 

The unit with which the current is measured is ampere

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Answered on 18 May Tuition/BA Tuition/English Communication

Tanvi Madbhavi

Highly Qualified Tutor

The charge is Rs.10k for the full course.
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Lesson Posted on 26 Apr Tuition/BA Tuition/English Communication

Tips to Speak in English Fluently

Repalli Sailaja

I like to share my knowledge.

Hello everyone myself Sailaja. I am seeing that many of the students are daily posting that they want to speak English fluently. So today I am going to teach you that what are the tips to follow to speak English fluently: Read the English newspaper daily. Try to speak about yourself in English continuously... read more

Hello everyone myself Sailaja. I am seeing that many of the students are daily posting that they want to speak English fluently. So today I am going to teach you that what are the tips to follow to speak English fluently:

  • Read the English newspaper daily.
  • Try to speak about yourself in English continuously at least for ten minutes.
  • Watch the English movies with subtitles.
  • Conduct some group discussion on a topic with your friends/relatives.
  • By maintaining all these, you can speak English very fluently.
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Answered on 24 May Tuition/BA Tuition/Home Science

Need Remedial teacher for my son.

Chandrashekhar singh

Professional Trainer

Hi Darren, Depending on your location there will be public pools and private pools. Municipal corporations of your city manage public pools, they will have limited admissions with nominal rates. Generally, you find these pools crowded. Private pools are bit expensive. You don't find it difficult to find... read more

Hi Darren, Depending on your location there will be public pools and private pools. Municipal corporations of your city manage public pools, they will have limited admissions with nominal rates. Generally, you find these pools crowded. Private pools are bit expensive. You don't find it difficult to find a pool in your locality if you live in metropolitan cities in India, but you need to be cautious while choosing a coach else you end up not learning anything after spending a lot of time and money. How to choose a right coach? Book a demo class and decide for yourself. Reply, if you need any specific help regards to swimming.

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Lesson Posted on 14 Apr Exam Coaching Exam Coaching/UPSC Exams Coaching/Civil Services (Mains) Coaching Tuition/BA Tuition

How to study Indian History?

Tarlok Singh

Step 1 - Divide your syllabus into three major parts, that is ancient, medieval and modern history.Step 2 - Better to start with ancient Indian history, study chronologically, as it will provide you with the basic startup knowledge of Indian subcontinents history. Try to write down the important events,... read more

Step 1 - Divide your syllabus into three major parts, that is ancient, medieval and modern history.

Step 2 - Better to start with ancient Indian history, study chronologically, as it will provide you with the basic startup knowledge of Indian subcontinents history. Try to write down the important events, dates, names, e.g., the name of the king, his poets, authors of texts/manuscripts etc.

Step 3 - Study regularly according to your timetable, gaps in the regular study will result in confusion as this is history and syllabus is vast.

Step 4 - Try to study by following regular revision method, it means before you start your next topic give a quick revision to the last topic you already covered. This is a very good method, especially for history students.

Step 5 - Cover your syllabus from topic to topic, chapter to chapter. If you are jumping your chapter/topics then this will surely increase your confusion and will waste your time even more as events in history are linked to each other, names are also repeated. For example Chandragupta 1, Chandragupta 2 etc.

Important overview - ancient Indian history is all about sources of ancient history, authors, poets, kings, their work, ancient findings, coins, manuscripts, temples, temple arts etc.

Medieval history is all about administration, wars, Mughals, development in art and literature, religion and downfall of various Kingdoms.

Modern history is all about the downfall of Indian princes, Britishers, their treaties their wars their policies, Indian economy. New ideas of religion and politics and struggle for independence.

Important authors - for ancient Indian history RS Sharma is best.
For medieval history, Satish Chandra is best.
For modern history, Bipin Chandra and Mohammad Tareeq are best.

Along with these authors, you must follow special editions of Pratiyogita Darpan on ancient medieval and modern history. Krishna reddie's book is also good when it comes to question bank and chronological notes etc. but it's a big book.

So please study chronologically and regularly, have a nice day.

Tarlok Singh
MA History, MA Economics.

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Lesson Posted on 14 Apr CBSE/Class 11/Science/Biology CBSE/Class 12 Tuition/BA Tuition/Cell Biology

Ribosomes

Bhakti Makadia

I have 2 years of biology teaching experience and have a good skills in explaining the concepts.

While examining the animal and plant cell through a microscope, you might have seen numerous organelles that work together to complete the cell activities. One of the essential cell organelles are ribosomes, which are in charge of protein synthesis. The ribosome is a complex made of protein and RNA and... read more

While examining the animal and plant cell through a microscope, you might have seen numerous organelles that work together to complete the cell activities. One of the essential cell organelles are ribosomes, which are in charge of protein synthesis. The ribosome is a complex made of protein and RNA and which adds up to numerous million Daltons in size and assumes an important part in the course of decoding the genetic message reserved in the genome into protein.

The essential chemical step of protein synthesis is peptidyl transfer, that the developing or nascent peptide is moved from one tRNA molecule to the amino acid together with another tRNA. Amino acids are included in the developing polypeptide in line with the arrangement of codons of a mRNA. The ribosome, therefore, has necessary sites for one mRNA and no less than two tRNAs.

Made of two subunits, the big and the little subunit which comprises a couple of ribosomal RNA (rRNA) molecules and an irregular number of ribosomal proteins. Numerous protein factors catalyze distinct impression of protein synthesis. The translation of the genetic code is of essential significance for the manufacturing of useful proteins and for the growth of the cell.

Structure

Ribosomes are made of proteins and ribonucleic acid (abbreviated as RNA), in almost equal amounts. It comprises of two sections, known as subunits. The tinier subunit is the place the mRNA binds and it decodes, whereas the bigger subunit is the place the amino acids are included.

Both subunits comprise of both ribonucleic acid and protein components and are linked to each other by interactions between the proteins in one subunit and the rRNAs in the other subunit. The ribonucleic acid is obtained from the nucleolus, at the point where ribosomes are arranged in a cell.

The structures of ribosomes include:

  • Situated in two areas of the cytoplasm.
  • They are seen scattered in the cytoplasm and a few are connected to the endoplasmic reticulum.
  • Whenever joined to the ER they are called the rough endoplasmic reticulum.
  • The free and the bound ribosomes are very much alike in structure and are associated with protein synthesis.
  • Around 37 to 62% of RNA is comprised of RNA and the rest is proteins.
  • Prokaryotes have 70S ribosomes respectively subunits comprising the little subunit of 30S and the bigger subunit of 50S. Eukaryotes have 80S ribosomes respectively comprising of little (40S) and substantial (60S) subunits.
  • The ribosomes seen in the chloroplasts of mitochondria of eukaryotes are comprised of big and little subunits composed of proteins inside a 70S particle.
  • Share a centre structure which is very much alike to all ribosomes in spite of changes in its size.
  • The RNA is arranged in different tertiary structures. The RNA in the bigger ribosomes is into numerous continuous infusions as they create loops out of the centre of the structure without disturbing or altering it.
  • The contrast between those of eukaryotic and bacteria are utilized to make antibiotics that can crush bacterial disease without damaging human cells.ribosome structure

Ribosomes Size

Ribosomes comprise of two subunits that are suitably composed and function as one to translate the mRNA into a polypeptide chain amid protein synthesis. Due to the fact that they are made from two subunits of differing size, they are a little longer in the hinge than in diameter. They vary in size between prokaryotic cells and eukaryotic cells.

The prokaryotic is comprised of a 30s (Svedberg) subunit and a 50s (Svedberg) subunit meaning 70s for the entire organelle equal to the molecular weight of 2.7×106 Daltons. Prokaryotic ribosomes are about 20 nm (200 Å) in diameter and are made of 35% ribosomal proteins and 65% rRNA.

Notwithstanding, the eukaryotic are amidst 25 and 30 nm (250–300 Å) in diameter. They comprise of a 40s (Svedberg) subunit and a 60s (Svedberg) subunit which means 80s (Svedberg) for the entire organelle which is equal to the molecular weight of 4×106 Daltons.

Location

Ribosomes are organelles located inside the animal, human cell, and plant cells. They are situated in the cytosol, some bound and free-floating to the membrane of the coarse endoplasmic reticulum.

They are utilized in decoding DNA (deoxyribonucleic acid) to proteins and no rRNA is forever bound to the RER, they release or bind as directed by the kind of protein they proceed to combine. In an animal or human cell, there could be up to 10 million ribosomes and numerous ribosomes can be connected to the equivalent mRNA strand, this structure is known as a POLYSOME.

Function

When it comes to the main functions of ribosomes, they assume the role of bringing together amino acids to form particular proteins, which are important for completing the cell's activities.

Protein is required for numerous cell functions, for example, directing chemical processes or fixing the damage. Ribosomes can yet be discovered floating inside the cytoplasm or joined to the endoplasmic reticulum.

The other functions include:

  1. The procedure of creation of proteins, the deoxyribonucleic acid makes mRNA by the step of DNA transcription.
  2. The hereditary information from the mRNA is converted into proteins amid DNA translation.
  3. The arrangements of protein assembly amid protein synthesis are indicated in the mRNA.
  4. The mRNA is arranged in the nucleus and is moved to the cytoplasm for an additional operation of protein synthesis.
  5. The proteins which are arranged by the ribosomes currently in the cytoplasm are utilized inside the cytoplasm by itself. The proteins created by the bound ribosomes are moved outside the cell.

Taking into consideration their main function in developing proteins, it is clear that a cell can’t function in the absence of ribosomes.

Those that live inside bacteria, parasites and different creatures, for example, lower and microscopic level creatures are the ones which are called prokaryotic ribosomes. While those that live inside humans and others such as higher level creatures are those ones we call the eukaryotic ribosome. The other major differences include:

  1. Prokaryotes have 70S ribosomes, singly made of a 30S and a 50S subunit. While the Eukaryotes have 80S ribosomes, singly made of a 40S and 60S subunit.
  2. 70S Ribosomes are relatively smaller than 80S while the 80S Ribosomes are relatively bigger than 70S ribosomes.
  3. Prokaryotes have 30S subunit with a 16S RNA subunit and comprise of 1540 nucleotides bound to 21 proteins. The 50S subunit gets produced from a 5S RNA subunit that involves 120 nucleotides, a 23S RNA subunit that contains 2900 nucleotides and 31 proteins.
  4. Eukaryotes have 40S subunit with 18S RNA and also 33 proteins and 1900 nucleotides. The big subunit contains 5S RNA and also 120 nucleotides, 4700 nucleotides and also 28S RNA, 5.8S RNA as well as 160 nucleotides subunits and 46 proteins.
  5. Eukaryotic cells have mitochondria and chloroplasts as organelles and those organelles additionally have ribosomes 70S. Hence, eukaryotic cells have different kinds of ribosomes (70S and 80S), while prokaryotic cells just have 70S ribosomes.

 

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Answered on 17/04/2017 Tuition/BA Tuition Tuition/BA Tuition/History Of English Literature (Elizabethean & Romantic Age)

Rohini k.

Tutor

You can charge Rs. 250 per hour.
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