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Mehak Gautam 6 years, 3 months ago

Hey , you can find it in your ncert biology textbook with brief explanation hope it help

ANSWER

If prokaryots does not have organelles then how cynobacteriya contain choroplast

Posted by Nihal Jaiswal 6 years, 3 months ago

CBSE > Class 11 > Biology

1 answers

Harshit Rastogi 6 years, 3 months ago

Chloroplasts are major organelles. They contain green pigments that make plants green. They are often called plastids, though plastids and chloroplasts are not exactly the same thing—a chloroplast is a special kind of plastid that photosynthesizes. Chloroplasts do lots of things, but their main function is photosynthesis. Plant cells, and some protists have chloroplasts, though animal and fungal cells lack them. Prokaryotes do not have chloroplasts (or any other organelles), though some can carry out photosynthesis, its cell acting like one big chloroplast. Chloroplasts are mainly green in colour since it absorbs red and blue light via their green pigment chlorophyll that is present in the thylakoid membranes.(Refer to wikibooks.org for more information) Chloroplasts are cellular generators. They take in carbon dioxide and water, and release sugar and oxygen. This process is called photosynthesis. Mitochondria then use the sugar and oxygen to carry out cellular respiration, producing energy. Mitochondria are essential parts of many eukaryotes, but they are useless without oxygen. Therefore, chloroplasts are extremely important. They produce breathable air for life. Root hairs are seen to not have chloroplasts as their job is to collect water and nutrients. They do NOT carry out photosynthesis. Like mitochondria, chloroplasts have their own DNA. Scientists also think chloroplasts are descended from a kind of bacteria, called cyanobacteria. Cyanobacteria are the photosynthetic bacteria we mentioned earlier. In early stages of Earth, cyanobacteria produced oxygen for their friends, the ærobic bacteria (ærobic means they use oxygen). Some of these ærobic bacteria later migrated into a eukaryotic cell, becoming mitochondria. The cyanobacteria followed, becoming chloroplasts. All eukaryotic cells contain mitochondria, but only plants and algæ contain chloroplasts, so scientists think mitochondria came first.

ANSWER

Identify the group having metal, nonmetal, liquid as well as gas at room temperature and how

Posted by Akanksha Gupta 6 years, 3 months ago

CBSE > Class 11 > Chemistry

1 answers

Harsh Mishra 6 years, 3 months ago

13 group

ANSWER

Find the missing words inthe given line Literary media is a to hear and visualise

Posted by Aachal Gupta 6 years, 3 months ago

CBSE > Class 11 > English Core

0 answers

ANSWER

How did carter separate Tut mummy fromits coffine

Posted by Naveen Kumar Sharma 6 years, 3 months ago

CBSE > Class 11 > English Core

1 answers

Anubhav Barnwal 6 years, 3 months ago

Carter found that the mummy was cemented with the ritual resins used while burying it and tried to break out but failed and then he used the blazing sunlight to loosen it and heated it to 149° farenheit but nothing happened then he decided to chiselled(cut into pieces) it and Carter's men severe every joint of Tut's mummy and seperate it from its coffin.

ANSWER

Is circular motion is important topic for chapter 4

Posted by Sam Bhardwaj 6 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Rishi Seth 6 years, 3 months ago

No not that much. You can just learn the formula related to uniform circular motion

ANSWER

Integrate x ki power square minus cos x + 1 upon x

Posted by Vishal Tyagi 6 years, 3 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

What is a understanding family

Posted by Ninu Kumari 6 years, 3 months ago

CBSE > Class 11 > Home Science

1 answers

Ninu Kumari 6 years, 3 months ago

Kisi ko nhi at

ANSWER

Extracts from childhood with answers

Posted by S Bala Krishna 6 years, 3 months ago

CBSE > Class 11 > English Core

0 answers

ANSWER

What is pure inelastic collision?

Posted by Muskann Tiwari 6 years, 3 months ago

CBSE > Class 11 > Physics

3 answers

Muskann Tiwari 6 years, 3 months ago

thanyou so much my friends

Mohammad Amaan 6 years, 3 months ago

In perfectly inelastic collision,momentum is conserved i.e. (final momentum is equal to the initial momentum. ), But kinetic energy is not conserved (final kinetic energy is less than the initial kinetic energy.), and the bodies stick together after collision and start moving with same velocity.

Shivam Dangi 6 years, 3 months ago

Collision in which momentum remain conserved but kinetic energy do not remain conserve is called pure inelastic collision

ANSWER

Feecher kya hota h

Posted by Muskann Tiwari 6 years, 3 months ago

CBSE > Class 11 > हिंदी कोर

1 answers

Samraddhi Saxena 6 years, 3 months ago

It is a type of paragraph writing

ANSWER

What do you know about the Roman Society?

Posted by Peter Bechara 6 years, 3 months ago

CBSE > Class 11 > History

0 answers

ANSWER

What is budget line or budget set

Posted by Virendra Sharma 6 years, 3 months ago

CBSE > Class 11 > Economics

1 answers

Sia ? 6 years, 3 months ago

Budget line is a graphical representation which shows all the possible combinations of the two goods that a consumer can buy with his given income and market prices of commodities. It is also called consumption possibility line.

Budget set refers to the set of all possible combinations of the two goods which a consumer can afford at his given income and prices in the market. Equation of budget set is:
P_X.Q_X + P_Y.Q_y{tex}\leq{/tex}M,
Where P_X is the price of good X

Q_Xis the quantity of good X

P_Y is the price of good Y

Q_Y is the quantity of good Y.

ANSWER

If x had taken insurance of his house against fire from A of 30L and from B of 20L. If X had lose of 3L .If x claims for compensation from A and B separately .what is the amount of money X will get?

Posted by Jagdish Kujur 6 years, 3 months ago

CBSE > Class 11 > Business Studies

0 answers

ANSWER

Explain Mourad's love for animals with the help of incidents from the story.

Posted by Anubhav Barnwal 6 years, 3 months ago

CBSE > Class 11 > English Core

1 answers

Shivam Dangi 6 years, 3 months ago

His kind attitufe toward little bird is best example

ANSWER

first term syllabus

Posted by Suman Gujjar 6 years, 3 months ago

CBSE > Class 11 > Business Studies

0 answers

ANSWER

Plz add geography practical book and silution

Posted by Virendra Thakur 6 years, 3 months ago

CBSE > Class 11 > भूगोल

1 answers

Roopali Rajput 6 years, 3 months ago

ANSWER

Average velocity

Posted by Abhishek Sando 6 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

The Hammer 6 years, 3 months ago

The average velocity of an object is its total displacement divided by the total time taken

ANSWER

A batsman hits back a ball straight in the direction of the bowler without changing its initial speed of 12m/s. If the mass of the ball is 0.15kg, determine the impulse imparted to the ball.

Posted by Xjcj Xhcj 6 years, 3 months ago

CBSE > Class 11 > Physics

2 answers

Raina Ahlawat 6 years, 3 months ago

Here u=12m/sec V= -12m/sec M= 0.15kg J= m(v-u) =0.15(-12-12) = -3.6 N sec

Sia ? 6 years, 3 months ago

Impulse = change in linear momentum .
initial momentum of ball= mu
=0.15 {tex}\times{/tex}12 =1.8 kg.m/sec

final momentum of ball = -mu
= - 0.15 {tex}\times{/tex} 12 = -1.8 kgm/sec

now,
change in momentum of ball =final -initial
= -1.8 -1.8 = -3.6 kgm/sec
so,
change in momentum of bat = -change in momentum of ball
change in momentum of bat =3.6 kgm/s
now,
impulse imparted to ball =change in momentum of bat = 3.6 kgm/s

ANSWER

Arth sastr kyaa hai

Posted by Sachin Dubey 6 years, 3 months ago

CBSE > Class 11 > अर्थशास्त्र

1 answers

Sia ? 6 years, 3 months ago

अर्थशास्त्र सामाजिक विज्ञान की वह शाखा है, जिसके अन्तर्गत वस्तुओं और सेवाओं के उत्पादन, वितरण, विनिमय और उपभोग का अध्ययन किया जाता है। 'अर्थशास्त्र' शब्द संस्कृत शब्दों अर्थ (धन) और शास्त्र की संधि से बना है, जिसका शाब्दिक अर्थ है - 'धन का अध्ययन'।

ANSWER

Difine redtides

Posted by Mohd Danish 6 years, 3 months ago

CBSE > Class 11 > Biology

1 answers

The Hammer 6 years, 3 months ago

Red tide is a common name for algal blooms, which are large concentrations of aquatic microorganisms, such as protozoans and unicellular algae

ANSWER

How to record transactions in purchase book??

Posted by Vishw Patel 6 years, 3 months ago

CBSE > Class 11 > Accountancy

0 answers

ANSWER

(√3+√2)^6-(√3-√2)^6

Posted by Vishwajeet Kumar 6 years, 3 months ago

CBSE > Class 11 > Mathematics

1 answers

Gaurav Seth 6 years, 3 months ago

F i r s t l y, t h e e x p r e s s i o n (a + b)⁶ – (a – b)⁶i s s i m p l i f i e d by using Binomial Theorem.

ANSWER

Define emperical formula

Posted by Danish Saroch 6 years, 3 months ago

CBSE > Class 11 > Chemistry

3 answers

Nikita Chauhan 6 years, 3 months ago

An emperical formula represents the sinplest whole number ratio of various atoms present in a compound

Ankita Rai 6 years, 3 months ago

Empirical formula is the smallest / simplest ratio of atom present in compounds Example, H2O2 the empirical formula is HO

Gaurav Seth 6 years, 3 months ago

The empirical formula of a compound is defined as the formula that shows the ratio of elements present in the compound, but not the actual numbers of atoms found in the molecule. The ratios are denoted by subscripts next to the element symbols.

The empirical formula is also known as the simplest formula because the subscripts are the smallest whole numbers that indicate the ratio of elements.

ANSWER

What are the demerits of mailing method

Posted by Adarsh Tiwari 6 years, 3 months ago

CBSE > Class 11 > Economics

1 answers

Sia ? 6 years, 3 months ago

The main demerits of this method can be listed as follows:

It cannot be used for illiterate or uneducated respondents.
Rate of non-response is high in comparatively with other method.
If there is any confusion in the questionnaire, they cannot be solved.
There is inbuilt inflexibility.
The control over questionnaire may be lost once it is sent.
It is difficult to verify the accuracy of the answers given. This method is likely to be the slowest of all.
There is no scope for asking supplementary questions for cross checking of the information supplied by the respondents.
Informants are not willing to give written information in their own, handwriting as certain personal questions like income, property, personal habits and so on.

ANSWER

What are the factors on which making a constitution effective depends?

Posted by Kashif Eqbal 6 years, 3 months ago

CBSE > Class 11 > Political Science

1 answers

Gaurav Seth 6 years, 3 months ago

Politically, our Constitution has been reasonably effective. The government of our country is carried out under the provisions of the Constitution with a democratically elected government that is responsible to Parliament. The judiciary has also been effective in preserving the basic character of the constitution by refusing the legislature or the executive to exceed its authority. However, our political system is still marred by evils of criminalization and corruption which goes against the spirit of the Constitution.