Class 9 question paper sa2 New

Real paper class 9 CBSE New Summative Assessment 2

Class 09 Sample papers Summative Assessment – 2

Mathematics

Science

Social Science

English, Hindi and Sanskrit

Class 9 Maths Original Question Paper March 2016 for 2015-16

9th Maths Question paper(visitor) 2015-16-1

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9th Maths Question paper(visitor) 2015-16-2

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IX Original English Question paper SA2 March 2016

9th English_2016_SA2 Question papers(CPS) -2
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9th English_2016_SA2 Question papers(DAV) -3
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9th English_2016_SA2 Question papers(SDV) -4
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9th English 2016 SA2 Question paper(vinit) -5
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IX Science Original Paper with OTBA March 2016 session 2015-16
9th Science question paper by visitor 2015-16-1

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9th Science question paper by visitor 2015-16-3
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9th Science question paper by visitor 2015-16-4
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9th Science question paper by SDV 2015-16-8
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9th Science question paper by CPS 2015-16-9
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9th Hindi Real Question paper SA2 March 2016

9th Hindi-B SA2 Question paper 2015-16 set-1
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Class 9 Sanskrit SA2 Question paper March 2016
9th sankrit sa2 Question paper DAV 2015-16
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CBSE Sample Question Papers and Marking Scheme 2014 – 2015 for Class X

CBSE Sample Question Papers and Marking Scheme [Design of Question Paper For class X]
Sample Question Papers and  Marking Scheme 2014 – 2015
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Previous Year Question Papers 2011- 2012 and MARKING SCHEME  [cbse.gov.in/curric~1/qp2012/qp2012.htm‎] Previous Year Question Papers for Class X/XII (Board Examination 2012). Q.P.CLASS X · Q.P. CLASS XII · MARKING SCHEME CLASS XII (COMMERCE).
Sample Question Papers and Marking Scheme  2010 – 2011[http://www.cbse.nic.in/curric~1/qp2011/qp2011.htm‎] Sample Question Papers and Marking Scheme   for Board Exam. 2011. Class XII …Business Studies – Paper-I Paper-II · Economics. Accountancy – Part-1 | Part-2 …[ Q.P. CLASS X]
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9th CBSE Sample Paper Term 01

 

New Sample Papers and Test Papers for IX and X 2012-13

         New Sample Papers and Test Papers
                     CBSE Class X Test Papers
                  CBSE Class IX Test Papers
                              New Sample Papers

 

IX Biology:Extra marks Guess Solved Question paper : Cell and its Functions

Q. Why is the cell known the ‘fundamental and structural unit of life ‘

Ans: ell is called as the structural and functional unit of the living organism because it the smallest living entity that is capable of an independent existence. Separated cell organelles cannot be said to be living and are not capable of independent existence.

Q, what is a semi permeable membrane? what are the differences between semi permeable membrane and selectively permeable membrane?

Ans: a semi permeable membrane is a membrane that allows only the entry of substances that are helpful for the body. a semi permeable membrane is also called a selectively permeable membrane.

Q. Which cell in the human body does not have the mitochondria?

Ans: Mature erythrocytes don’t have mitochondria

Q.What are plastids? Write their functions?

Plastids are double membrane organelles which are found in plant cells only.

Functions: 1. By trapping solar energy, green plastids manufacture food through photosynthesis

2. Chloroplasts provide colored to various flowering parts.

3. Leucoplasts help in storage of protein, starch and oil

Q. which structure of animal cells forms the asters of spindle ?

Ans: Centrioles.

Q. Name two semi- autonomous organelles?

Ans: Chloroplast and mitochondria

Q. Which cell organelle is rich in acid hydrolases?

Ans: Lysomes are loaded with acid hydrolases

Q. Which cell organelles are called ribonucleoprotine particle?

Ans: Ribosome.

Q. Differentiate between SER and RER  

Ans: Rough endoplasmic reticulum[RER] has ribosomes attached to it giving a rough appearance thereby deriving its name.  RER- involved in protein synthesis as ribosomes are concerned with protein synthesis.

Smooth endoplasmic reticulum [SER] is devoid of ribosomes.   SER-concerned with lipid synthesis in intestinal cells and with steroid formation in adrenals

Q. what is the difference between eukaryotes and prokaryotes?

Ans:

Prokaryotes

Eukaryotes

They are mainly unicellular

They are mainly multicellular except for protista

They have only a few organelles

Many organelles

DNA is circular

DNA is linear

DNA lies in the cytoplasm (Nucleus absent)

DNA is inside the nucleus

Cell division occurs mostly through binary fission

Mitosis, meiosis or both take place.

 

Q .What is the difference between osmosis and diffusion.

Ans:

Osmosis

Diffusion

It is the movement of water.

It is the movement of solute particle.

Membrane is required

Membrane is not required.

Movement from low concentration to high concentration of solute.

Movement from high concentration to low concentration of solute.

It is associated with liquids.

It is associated with both liquid and gases

Q. Differentiate Between  : Plant cell and animal cell

Ans: Plant cell

a)    have chloroplasts and use photosynthesis to produce food.

b)    have cell wall made of cellulose.

c)     A plant cell has plasmodesmata – microscopic channels which traverse the cell walls of the cells.

d)    one very large vacuole in the center.

e)    are rectangular in shape.

Animal cell

a)    don ‘t have chloroplast.

b)    no cell wall (only cell membrane).

c)     No plasmodesmata.

d)    one small vacuole.

e)    either circular, irregular or defined shapes depending on the type of cell.

Q. Where are peroxisomes found ?

Ans: Peroxisomes are small, living, membrane bound, sac like cell organelle found in photosynthetically active cells of plants, liver and kidneys. These are meant for removing toxic substances from the cell by oxidative reactions. These are also involved in photorespiration in plants.

Q. what are the chemical reactions take place in cytoplasm, nucleoplasm, and in mitochondria?

Ans: 1. Cytoplasm- Reactions of glycolysis.

2. Mitochondria- Reactions of Kreb’s cycle.

3. Nucleoplasm- Reactions involving formation of RNA.

Q. what is Diffusion?

Ans: Diffusion is a spontaneous movement in which a substance moves from its region of higher concentration to the region of lower concentration. For example, in the case of a perfume, it moves from the region of higher concentration to lower concentration. So, it is a type of diffusion.

Q . What is dictyosomes ?

Ans: Dictyosomes are membranous or vesicular structures making up the Golgi apparatus. They together with golgi vesicles form the golgi apparatus .

CBSE Guess Paper CLASS – X BIOLOGY FOR SA-1

http://jsuniltutorial.weebly.com/x-biology-term-1.html

X Biology Control and Co-ordination Study Notes

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CBSE GUESS Solved-Heredity and evolution

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Assignment-Heredity & evolution CLASS- X, Biology

CBSE Notes-Heredity & evolution CLASS- X, Biology
Point to remember- Heredity & evolution  X, Biology
NCERT Solutions Heredity & evolution X, Biology
X Bilogy solved question chapter Life Process
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10th Science and mathsTest paper sample paper and assignments Term-1

CBSE Class X Mathematics
X Real Number
X Linear equation in two variable
X Polynomial (Algebra)
X Similar Triangle(Geometry)
X Trigonometrical Introduction and Identities(Trigonometry)
X Statics(Mean, Median and Mode)
CBSE Class X Science
X Chemical reaction and Reactions
X Acid, Base and Salts
X Metal and Non Metals
X Electricity (Electric Currents)
X Magnetic Effects of Currents
X Source of Energy