CBSE > Class 10 > Science | CBSE Board | Homework Help

Thylakoids consist of a thylakoidmembrane surrounding a thylakoidlumen. Chloroplast thylakoidsfrequently form stacks of disks referred to as grana (singular:granum).Grana are connected by intergranal or stroma thylakoids, which join granum stacks together as a single functional compartment.

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Differentiate b/w liquid and aqueous state of substance with suitable eg. Differentiate b/w heating and burning with proper eg.

Posted by Ramesh Sagar 23 hours ago

CBSE > Class 10 > Science

1 answers

Adithya Dev A 22 hours ago

Liquid state =usually solvents. Aqueous state = Dissolved in polar and non polar solvents.

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Kya Kuch na kuch chadte rhane se brain tej kaam krta hai

Posted by Vishal Kumar 1 day ago

CBSE > Class 10 > Science

1 answers

Nisi 😊😊 23 hours ago

Means yrr

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Posted by Study📚✏ 🙆 21 hours ago

CBSE > Class 10 > Science

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Don't post personal information, mobile numbers and other details.
Don't use this platform for chatting, social networking and making friends. This platform is meant only for asking subject specific and study related questions.
Be nice and polite and avoid rude and abusive language. Avoid inappropriate language and attention, vulgar terms and anything sexually suggestive. Avoid harassment and bullying.
Ask specific question which are clear and concise.

Remember the goal of this website is to share knowledge and learn from each other. Ask questions and help others by answering questions.

Posted by Study📚✏ 🙆 21 hours ago

CBSE > Class 10 > Science

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Kya ISS saal boards honge ??

Posted by Kshama Vashishtha 1 day, 1 hour ago

CBSE > Class 10 > Science

4 answers

Study📚✏ 🙆 22 hours ago

Ohk

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Nisi 😊😊 1 day ago

Nahi g up se hu

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Study📚✏ 🙆 1 day ago

R u haryanvi nisi.... Coz m also from haryana

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Nisi 😊😊 1 day, 1 hour ago

Ha g hove ge kuch bhi hoja per board exam hove ge

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Why do silver chloride stored in dark coloured bottle

Posted by Mansehaj Kaur 1 day, 4 hours ago

CBSE > Class 10 > Science

3 answers

Adithya Dev A 1 day, 1 hour ago

Silver salts are photosensitive compounds. So, when kept exposed to sunlight, it decomposes to form Silver metal. So, they are usually stored in dark coloured bottles.

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Kowshik Kowshik 1 day, 1 hour ago

Because it reacts with sun light

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Sneha Keerthi 1 day, 4 hours ago

Silver chloride AgCl is sensitive to sunlight.when exposed to it,a salt decomposes into silver and chlorine. In order to check the decomposition, silver chloride is kept in dark coloured bottles so that sunlight may not fall on it.

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Science chemistry m all activity important h Kya board ke liye

Posted by 😇 😇😇 1 day, 4 hours ago

CBSE > Class 10 > Science

3 answers

Vishal Kumar 1 day ago

Yes

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Nisi 😊😊 1 day, 1 hour ago

Nahi yrr activity nahi aate board ne cancle kre h sab okk

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Vaibhav Tidke 1 day, 4 hours ago

Yes

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defined physical and Chemical change with 5 examples

Posted by Aryan Patel 1 day, 5 hours ago

CBSE > Class 10 > Science

2 answers

Komal Patidar 1 day, 4 hours ago

CHEMICAL CHANGE-A chemical change is a permanent change. EXAMPLE-burning of paper or log of wood,digestion of food,boiling an egg, milk going sour,rotting of banana. PHYSICAL CHANGE-A Physical change affects only physical properties i.e. shape, size, etc. EXAMPLE-freezing of water, melting of wax, boiling of water,mixing sand and water, dissolving sugar and water.

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Sia 🤖 1 day, 4 hours ago

	Physical Changes		Chemical Change
1.	It is not permanent and can easily be reversed.	1.	It is permanent and cannot be easily reversed.
2.	It does not lead to formation of new substances.	2.	It leads to the formation of new substances.
3.	No change in mass is noticed.	3.	There is a change in mass of reactants and products.
4.	The energy changes observed are small.	4.	Large energy changes are observed.

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What is combination reation

Posted by Mansi Yadav Yadav 1 day, 17 hours ago

CBSE > Class 10 > Science

5 answers

Mannat Duseja 1 day ago

When two or more substances combine together chemically to form a new substance is called combination reaction. For ex- 2H2+O2------> 2H2O CaO+H2O------>Ca(OH)2

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Tanay Shrivastava 1 day, 15 hours ago

Combination reaction:- the process in which two or more substance combine to form a single substance is called combination reaction. In this reaction two or more elements combine to form a compound, two or more compound combine to form a compound, an element and a compound combine to form a compound.

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Art Of Writing 1 day, 15 hours ago

Combustion reaction is a single product but have two or more reactants and also Heat releasing. Foreg:- CaO(s)+ H2O (l)----> CA(oH)2(aq) +heat..

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Harsh Malik 1 day, 16 hours ago

Reactent+product+heat

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Adithya Dev A 1 day, 16 hours ago

A type of chemical reaction in which two or more reactants react to form a single product is known as COMBINATION REACTION ie, {a + b = c}. It is divided into three :- 1) Element + Element ----> Compound. (Eg :- 2H2 (g) + O2 (g) ----> 2 H2O (l).) 2) Element + Compound ----> Compound. (Eg :- 2SO2 + O2 ----> 2SO3.) 3) Compound + Compound ----> Compound. (Eg :- NH3 + HCl ----> NH4Cl.)

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What are life processes and name them.

Posted by Krish Jayani 1 day, 18 hours ago

CBSE > Class 10 > Science

5 answers

Aditya Yadav 1 day, 16 hours ago

All biological activities which maintain our body called life process

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Adithya Dev A 1 day, 17 hours ago

Certain activities taking place in the body of an organism which is crucial for the sustenance of the organism and for maintenance of life is collectively known by the term "Life Processes". The life processes are NUTRITION, RESPIRATION, TRANSPORTATION, EXCRETION, CONTROL & COORDINATION, MOVEMENT & LOCOMOTION, REPRODUCTION and GROWTH MECHANISM.

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Sneha Rajak 1 day, 18 hours ago

The basic life processes common to all living organisms are nutrition respiration, transportation, excretion , control and coordination, growth movement and reproduction

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Sneha Rajak 1 day, 18 hours ago

The basic functions performed by living organisms to maintain their life on this earth are called life process

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😃 😃 1 day, 18 hours ago

The basic functions performed by living organisms for their survival and body maintenance are called life process. Basic life processes are : Nutrition, Respiration, Transportation, Excretion etc. Life Processes require energy which is provided by nutrition.

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Class 10 science book pdf

Posted by Princy Singh 1 day, 18 hours ago

CBSE > Class 10 > Science

2 answers

Nisi 😊😊 1 day ago

Class 10th solution download kr. Lo aap okk dear

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Princy Singh 1 day, 18 hours ago

Class 10 science book pdf

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What is enzymes? Give any example of enzymes.

Posted by Art Of Writing 1 day, 20 hours ago

CBSE > Class 10 > Science

2 answers

Dilip Meena Meena 1 day, 15 hours ago

Biological catalyst whom breakdown food into small soluble substances, for example trypsin,pepsin are some enzyme

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Jatin Shah 1 day, 19 hours ago

Answer: Enzymes are biological molecules (typically proteins) that significantly speed up the rate of virtually all of the chemical reactions that take place within cells. They are vital for life and serve a wide range of important functions in the body, such as aiding in digestion and metabolism. Enzymes and its examples:- 1) Amylase - Helps change starches into sugars. 2) Maltase - Also found in saliva breaks the sugar maltose into glucose. 3) Trypsin - Found in the small intestine, breaks proteins down into amino acids.

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What is the role of fuse, used in series with any electrical appliance (3 marks)

Posted by 😷😭 😭 1 day, 22 hours ago

CBSE > Class 10 > Science

3 answers

Study📚✏ 🙆 1 day, 1 hour ago

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Adithya Dev A 1 day, 20 hours ago

It acts like a safety device in domestic electric circuits which protect appliances from short circuits. It is usually made of materials with low melting points like copper or an alloy of tin and lead. So, whenever excess current flows through the circuit, the heat produced in the conductor would become high. This heat makes the fuse wire, connected in series with the circuit, melts off thus, disconnecting the circuit.

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Daksh Joshi 1 day, 21 hours ago

Fuse acts like a melting wire in electric appliance . It is connected to the wire so that if short circuit takes place, fuse will melt and break the circuit to prevent appliances catching fire

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What is meant by magnetic force?Name and explain the rule to determine the direction of force experienced by an electron

Posted by Archita Yadav 1 day, 23 hours ago

CBSE > Class 10 > Science

3 answers

Harsh Malik 1 day, 16 hours ago

The

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Study📚✏ 🙆 1 day, 18 hours ago

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Adithya Dev A 1 day, 23 hours ago

The force exerted by a magnet on another magnet or on a magnetic substance like iron, cobalt and nickel is called MAGNETIC FORCE. The rule is Fleming's left hand rule. According to this rule, on keeping our left thumb, forefinger and middle finger in mutually perpendicular directions, if the forefinger points in the direction of magnetic field and middle finger points in direction of current, then the thumb would point in the direction of force.

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How we revise whole syallabus in one day for preboards

Posted by Akanksha Tomar 2 days ago

CBSE > Class 10 > Science

5 answers

Akanksha Tomar 5 hours ago

Thanks for your suggestions

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Akanksha Tomar 5 hours ago

Wow

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Jeet Mondal 17 hours ago

By playing games

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Bipin Kumar 1 day, 18 hours ago

Matlb kuchh bhi puchh deti ho...

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Pratvi Popat 1 day, 18 hours ago

By watching television 🤣🤣

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What do you mean by atp

Posted by Boby Singh 2 days ago

CBSE > Class 10 > Science

4 answers

C.J.Ramiya Krishna 1 day, 20 hours ago

Adenosine Triphosphate

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Sowmiya Vijaykumar 2 days ago

Extra info:ATP is produced in mitochondria and during respiration it takes place

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Akanksha Tomar 2 days ago

Andrinocine triphospate is the energy released by respiration in mitrochondria

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Sowmiya Vijaykumar 2 days ago

Adenosine triphosphate (ATP) is the energy currency in the living organisms.

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What is effervescence? Explain.

Posted by Ritika Talwar 2 days ago

CBSE > Class 10 > Science

2 answers

Sowmiya Vijaykumar 2 days ago

vigorous evolution of a gas in a chemical reaction. It is evidence that in the reaction carbon dioxide is liberated

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Raj Kumar 2 days ago

Hiii

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An element ‘X’ displaces iron from the aqueous solution of iron sulphate. List your observations if the element ‘X’ is treated with the aqueous solutions of copper sulphate, zinc sulphate and silver nitrate. Based on the observations arrange X, Zn, Cu and Ag in increasing order of their reactivities.

Posted by Bijita Adhikary 2 days, 2 hours ago

CBSE > Class 10 > Science

2 answers

Adithya Dev A 2 days, 1 hour ago

Sorry, the vice versa. Ag < Cu < Zn < X.

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Adithya Dev A 1 day, 18 hours ago

X < Zn < Cu < Ag.

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Why we are advised not to talk while eating?

Posted by Bipin Kumar 2 days, 4 hours ago

CBSE > Class 10 > Science

1 answers

Incredible Foxtrot 2 days, 3 hours ago

When we talk food gets enter into wind pipe and cause coughing tthe food must be go through oesophagus tube to prevent the collapse we should not talk while eating

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Can we say that alveoli and villi do same work?

Posted by Bipin Kumar 2 days, 4 hours ago

CBSE > Class 10 > Science

2 answers

Surender Kumar 1 day, 22 hours ago

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Incredible Foxtrot 2 days, 3 hours ago

Their mechanism is different as alveoli is site of gaseous exchange and vill helps to absorb nutrients from the food but overall their work are similar.

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Can we say that 0 volt is passing into any circuit but current is still in circuit flowing?

Posted by Bipin Kumar 2 days, 4 hours ago

CBSE > Class 10 > Science

3 answers

Sunil Kumar 2 days, 2 hours ago

No, because there is no potential difference current can't flow in the circuit there should be some work done in moving charge and potential difference is also be there to make sure that current is flowing in the circuit.

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Bipin Kumar 2 days, 2 hours ago

Ohk

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Incredible Foxtrot 2 days, 3 hours ago

No, because their is no potential difference current can't flow in the circuit there should be some work done in moving charge and potential difference is also be there to make sure that current is flowing in the circuit.

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Why is it advised not get involved in *** before a certain period of life?

Posted by Bipin Kumar 2 days, 4 hours ago

CBSE > Class 10 > Science

0 answers

ANSWER

What makes Chemistry more Interesting?

Posted by Bipin Kumar 2 days, 1 hour ago

CBSE > Class 10 > Science

3 answers

Sia 🤖 2 days, 1 hour ago

Chemistry is interesting and creative: Our world is made out of atoms, molecules and ions. Their behavior determines the properties of the substances we encounter in our daily lives: their structure, color, smell, and the way they interact with each other. Chemists use this knowledge in a creative way.

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Akanksha Tomar 2 days ago

Learning by funny songs and poem

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Bipin Kumar 2 days ago

Sia bhai Maine yeh nhi puchha puchha kya chij Interesting banata h Chemistry ko

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What makes Biology more Interesting?

Posted by Bipin Kumar 2 days, 4 hours ago

CBSE > Class 10 > Science

1 answers

Harsh Malik 1 day, 16 hours ago

Diagrams

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What makes Physics more Interesting?

Posted by Bipin Kumar 2 days, 4 hours ago

CBSE > Class 10 > Science

2 answers

Ravindra Kumar Verma 1 day, 2 hours ago

By Understanding deep concept

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Adithya Dev A 1 day, 19 hours ago

It is its dependence with chemistry, biology which makes Physics more interesting. Physics is something which is hidden in the most unexplored of the depths of every small and big phenomenon in the complete universe.

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Is this neccesary to produce egg by female in every 14th days after menstruation?

Posted by Bipin Kumar 2 days, 4 hours ago

CBSE > Class 10 > Science