9th Practice based MCQ Solved Test paper-5 Download File
Class 9 Practice based question Is matter around us pure solved test paper - 5
9th Practice based MCQ Solved Test paper-5 Download File
CBSE Class 9th (IX) chapter 06 Tissues [Biology term-01] Board Guess Questions with solution
Q. Name the element(s) of xylem which (i) help in transport of water and minerals, (ii) stores food, and (iii) provides mechanical support
Ans: (i) tracheids and vessels (ii) xylem parenchyma (iii) xylem fibres
Q. (a) State the constituents of phloem ? (b) How does cork act as a protective tissue ?
(a) Constituents of phloem are :
(1) Sieve tubes (2) Companian cells (3) Phloem fibres (4) Phloem parenchyma
(b) Cells of cork are dead and compactly arranged without intercellular space and hence do not allow entry of pathogens.
Moreover they have a chemical called suberin in their walls that makes them impervious to gases and water.
Q. Which tissue makes up the husk of coconut?
Ans: The husk of a coconut is made up of sclerenchyma tissue.
Q. Name the tissue responsible for movement in our body.
Ans: Themuscular tissue is responsible for movement in our body
Q. Give one reason for the following statements :
(a) The blood is called connective tissue.
(b) Muscles are able to contract and relax to bring about movements.
(c) Muscles of heart are called involuntary muscles.
Ans: (a) Blood flows to transport gases, digested food, hormones and waste materials to different parts of the body.
(b) Muscles contain special proteins called contractile proteins, which contract and relax to cause movements.
(c) Muscles of heart show rhythmic contraction and relaxation throughout life without getting fatigued.
Q. List any two differences between striated and cardiac muscle with respect to their structure and location.
1. The cells striated muscles are long, cylindrical unbranched and multinucleated.
2. Striated muscles are present in our limbs and join the bones.
1. The cells of cardiac muscles are cylindrical, branched and uninucleated.
2. These muscles are present in the heart.
Q. (i) Draw a labelled diagram of longitudinal section of parenchyma. (ii) Write three functions of parenchyma cells.
Ans: Figure No. 1.4 NCERT
(a) It provides support to plants. (b) It also stores food (c) In aquatic plants parenchyma cells filled with air helps in buoyancy.
Q. Mention the type of tissue which
(a) enables the plant to transport food material from leaves to other parts of its body.
(b) helps in the growth of girth of the stem ?
(c) helps in the transport of water from the root to other parts ?
(d) provides support to plants and also stores food ?
Ans: (a) Phloem (b) Cambium, or lateral meristem (c) Xylem (d) Parenchyma
Q. (a) Name the two types of complex tissues.
(b) Draw a neat diagram of the section of the tissue that is responsible for the translocation of food from the leaves to the different parts of the plant ?
Ans: Xylem and Phloem (a) Dia. On page 73 fig. 6.7of NCERT.
Q. Write one important functional difference between Striated and Smooth muscle tissue and draw a labeled diagram of the muscle tissue that shows rhythmic contraction and relaxation throughout life.
Ans: Striated muscles â This tissue is responsible for voluntary actions like movement of limbs in our body. Smooth muscles â This tissue is responsible for involuntary actions like movement of food in alimentary canal in our body, also found in the iris of the eye, ureters and bronchi. (any one) I Cardiac muscle tissue dia. (c) page.77 fig. 6.11
Q. Where is apical meristem found?
Ans: Apical meristem is present at the growing tips of stems and roots. Their main function is to initiate growth in new cells of seedlings, at the tip of roots, and shoots.
Q. What are the functions of areolar tissue?
Functions of areolar tissue:
(i) It helps in supporting internal organs.
(ii) It helps in repairing the tissues of the skin and muscles.
Q1 Name the following:
1. Pigeon pea is a good source of ________.(protein)
2. Berseem is an important _________. (fodder)
3. _________ are rich in vitamins.(vegetable/fruits)
4. _________ Crops are grown in winters. (rabi)
Q2 List some important traits in improved crops.
Ans. Some of the important traits in improved crops are:
1. high yield
2. improved quality
3. high resistance
4. wider adaptability
5. desirable agronomic traits
Q3 Why is excess use of fertilizers detrimental for environment?
Ans.Excess use of fertilizers has many bad effects like:
1. salination of soil
3. excess minerals in crop plants
Q4 Give one word:
1. growing of wheat and groundnut in the same field .(mixed cropping)
2. xanthium and parthenium are called.(weeds)
3. causal organism of any disease is called.(pathogen)
4. Farming without the use of chemicals. (organic farming)
5. planting of soyabean and maize in alternate rows in the same field
Q5 Define hybridization.
Ans.Crossing of two individuals with different useful traits in order to bring them together in a progeny.The new organism thus obtained is called a hybrid and has better characters as compared to either of the parents.
Q6 What is vermicompost?
Ans.It is a manure rich in pulverized organic matter and worm castings.It is prepared using earthworms. It is a quicker method of composting. Earth worms are seperarted and the Compost is ready for use.
Q7 Explain the term biofertilizers.
Ans.Living organisms like nitrogen fixing bacteria, blue green algae and minerals solubilising bacteria are called biofertilizers. Eg. Blue green bacteria,( nostoc, anabaena etc.)
Q8 Name 2 varieties of Indian fish
Ans.Fresh water: catla, rohuMarine fish: hilsa , sardine
Q9 Name 2 indigenous and 2 exotic breeds of poultry.
Indigenous: aseel, basra
Exotic: rhode Island Red, white leghorn
Q10 What are advantages of composite fish culture?
Ans.Composite fish culture is the practice of growing 5 to 6 species of fish in the same Fish tank. It includes the use of surface feeders, middle zone feeder and bottom Feeder. It has the following advantages:
1. no competition for food or space.
2. proper utilization of food
3. fish yield is high.
Q11 Name two exotic breeds of cows
1. holstein- friesian
2. brown swiss
Q12 Define broiler
Ans.Chickens which are about 7-8 weeks of age and are raised for meat.
Q13 What is roughage?
Ans. It’s a course and fibrous substance which has low nutrient content .e.g. fodder,hay and straw.
Q14 Name some symptoms of sick animals:
Ans,If an animal is sick, it shows following symptoms:
2. look tired
3. remain isolated
4. low yield
Q15 Define animal husbandry.
Ans Branch of agriculture which deals with the feeding, shelter, health and breeding domestic animals is called animal husbandry.
Q16. Define Mixed cropping
Ans. The technique of growing two or more different crops together in same field is Called mixed cropping. Eg. Ragi and gram, maize and urad bean etc.
Q17. Define intercropping.
Ans. Growing 2 or more crops simultaneously in different strips in a same field in definite row pattern is called intercropping. Eg. Soyabean,maize, cow pea.
Q18. Define crop rotation
Ans. Growing different crops on the same piece of land in a pre planned succession Is called crop rotation. Eg rice- wheat.
Q19. What is biological pest control?
Ans. In this method, some birds, insects etc are deliberately put in the affected field. They destoy the pests in the field.
Q20. What are weeds and why are they unwanted?
Ans. The plants which grow along with the cultivated crop are called weeds. They are Unwanted as they compete with the main crop for nutrient, space, sunlight etc.
Q21. What are layers?
Ans. Hens raised for egg production are called layers. They start laying eggs at the age of 20 weeks.
Q22. What is mariculture?
Ans. Culture of marine fin fish,shell fish and sea weeds is called mariculture.
Mariculture is growing rapidly as the demand for fish is increasing while the
Stock is declining due to excessive exploitation from sea.
Q23. Why are Italian bee varieties preferred?
They are preferred as:
a)They are gentle in nature.
b) They have good honey collection capacity.
c) They have less swarming activity.
Q24. What are concentrates?
Ans. The concentrates are rich in nutrients with very little fibrous or cellulose matter.
They are rich in carbohydrates, proteins, fats, minerals and vitamins. Eg oil cakes, grains etc.
Q25. What is culture fishery?
Ans. It is cultivating , rearing and harvesting of fish. It is also called fish farming.
Or pisciculture. The growing of various types of aquatic organisms in water bodies Is called aquaculture.
IX Biology : Improvement in Food Resources [excel in Exam]
CBSE solved ,unsolved test papers,Notes, Assignments and Guess Papers : First Term: Improvement in Food Resources. Plant and animal breeding and selection for quality improvement and management; use of fertilizers, manures; protection from pests and diseases; organic farming.
IX- Improvement in Food Res Solved Questions
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NCERT Class 9 Science Improvement In Food Resources
First Term > Improvement in Food Resources
25] To determine the melting point of ice a student immersed the thermometer in the crushed ice in a beaker. He then heated the beaker on a low flame and observed that during melting of ice the temperature :
A. Is decreasing
B. Fist decreases and then continuously increases
C. Is increasing
D. Remains constant Ö
26] In the mixture of iron filings and sulphur powder
A. both sulphur powder and iron filings gets attracted towards magnet
B.only sulphur powder gets attracted towards magnet
C.Neither iron filling nor sulphur gets attracted towards magnet.
D.only iron filings gets attracted towards magnet Ö
27] When a mixture of sulphur powder and iron filings is heated.
A. iron filings starts melting
B.sulphur sublimates leaving iron filling behind
D. Ferrous sulphide is formed. Ö
28] A student added milk, white of an egg, common salt and sand separately to water kept in four separate beakers. He stirred the mixtures well and filtered each of them. On filtering, he obtained solid residue on the filter paper in case of :
B. White of an egg
C. Common salt
D. Sand Ö
29] A student sets up an apparatus for determining the boiling point of water. He records the temperature after regular intervals and finds that water when it begins to boil:
A. Continuously rises
B.First remains constant and then rises
D.First rises and then becomes constant Ö
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Module : 1 Chapter : Is Matter Around Us Pure.
1. What is a mixture?
2. Types of mixture – homogenous and heterogeneous mixtures.
3. What is a solution? Properties of solution.
After the Completion of the topic the students will be able to understand
1. Definitions of mixtures, solution.
2. Types of mixtures, differences between homogenous and heterogeneous mixtures.
3. Examples of solutions
Practical No. To separate the components of a mixture of sand, common salt and ammonium chloride (or camphor) by sublimation.
Module : 2 Chapter : Is Matter Around Us Pure
1. Concentration of a solution.
(i) Calculation of mass by mass percentage of a solution.
(ii) Calculation of mass by volume percentage of a solution.
2. Definition of suspension. Properties of a suspension.
3. What is a colloidal solution?
4. Properties of a colloid.
5. Common examples of colloids.
6. Separation of coloured components from blue-black ink (evaporation).
7. Separation of cream from milk (centrifugation).
After the Completion of the content the students will be able to understand.
1. To identify colloids and suspension.
2. Examples of colloids and suspension used in day to day life.
3. Separation techniques : Evaporation, centrifugation.
Practical No. To Prepare :
1. A true solution of common salt, sugar and alum.
2. A suspension of Soil, chalk powder and fine sand in H2O.
3. A colloidal of starch in water. And to distinguish between these on the basis of :-
2. Filtration Criterion
Module : 3 Chapter : Is Matter Around Us Pure
1. Separation of mixtures of two immiscible liquids (using separating funnel).
2. Separation of mixtures of salt and Ammonium chloride (sublimation).
3. Separation of dyes in black ink using chromatography.
4. Separation of mixtures of two miscible liquids (Distillation).
5. Fractional distillation.
Study of following separation techniques and their applications
1. Using separating funnel.
5. Fractional Distillation.
Practical : To carry out the following reactions and classify them as physical and chemical changes.
(i) Iron with copper Sulphate solution in water.
(ii) Burning of magnesium in air.
(iii) Zinc with dilute Sulphuric Acid.
(iv) Heating of copper sulphate.
(v) Sodium Sulphate with Barium chloride in the form of their solution in water.
Module : 4 Chapter : Is Matter Around Us Pure.
1. Process to obtain different gases from air Fractional distillation.
2. Process to obtain pure copper sulphate from an impure sample-crystallisation.
3. Applications of crystallization.
4. Physical and chemical changes.
5. Type of pure substance – elements and compounds.
6. Differences between elements and compound.
After the Completion of the above module the students will be able to understand.
1. Method of crystallization and its applications.
2. Examples of physical and chemical changes.
3. Differences between elements and compounds.
Practical : To Prepare (i) a mixture (ii) a compound using Iron fillings and sulphur powder and to distinguish between them on the basis of :-
(ii) Behaviour towards a magnet.
(iii) Behaviour towards carbon disulphide as a solvent.
(iv) Effect of heat.
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CCE :IX Chapter: Is matter around us pure : MCQ’S
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CCE :IX Chapter: Is matter around us pure : MCQ’S
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CCE :IX Chapter: Is matter around us pure : MCQ’S
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Test yourself: IX :Is matter around us pure :MCQ’S
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1. An athlete runs a certain rest before taking a long jump. Why?
An athlete runs a certain distance to accelerate himself and gain enough momentum so that he can jump through the maximum possible length.
2. Springs are provided in car seats. Why?
The springs in the car seats absorb shock (sudden jumps) due to the roughness of the road. Thus, making the ride more comfortable.
3. A gun of mass 1500 kg fires a shell of mass 15kg with velocity 150 m/s. calculate velocity of recoil of the gun.
Before firing, total momentum of the gun and shell is = 0 (they were all at rest)
After firing, the momentum of the shell = 15 X 150 = 2250 Ns
The momentum of the gun is = 1500v Ns
By conservation of momentum,
Total momentum before firing = Total momentum after firing
=> 0 = 2250 + 1500v
=> v = -2250/1500 = -1.5 m/s
The negative sign implies the recoil velocity of the gun is opposite to the velocity of the shell.
4. Why cricketer pulls his hands backwards while catching the ball
Ans: cricketer pulls his hands backwards while catching the ball. When he does so, momentum of the ball reduces slowly, and time t required for this increases. As per F =DP/t , as t increase, magnitude of F decreases. As a result cricketer can catch the ball, easily, without any injury.
5. Why A karate player in order to break a brick, hits it quickly.
Ans: A karate player in order to break a brick, hitsit quickly, so in a short time there is a large change
in momentum and as per F =change in p/t as large force acts on the brick and it breaks.
6. What is impulse of Force?
Ans: Product of force and the time period for which force is acting is called impulse of force. If, on an object, Force F acts for time t. Then Impulse of force = force x time
I = F x t= change in p
Like force, impulse of force is also a vector quantity. Direction of impulse of force is same as the direction of force. Unit of impulse of force is kg m/s or Ns.
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1. An object of mass 2 kg is sliding with a constant velocity of 4 m/ s on a frictionless horizontal table. The force required to keep the object moving with the same velocity is
(a) 32 N (b) 0 N (c) 2 N (d) 8 N (b]
2. Rocket works on the principle of conservation of
(a) mass (b) energy (c) momentum (d) velocity [c]
3. A car is moving at 45 km/hr.A constant force acts on the car for 10 sc .So that it's velocity becomes 63 km/hr .The distance travelled by car during this interval of 10 sec is :
a) 100 m b) 150 m c) 200 m d) 50 m [b]
What is the definition of balanced and unbalanced force?
When two equal forces acting on an object in opposite directions called balanced force. When something does not move the forces are balanced, e.g. Gravity pulls a table down but that table is pushed up by the floor or the ground it stands on so doesn’t’ move.
An Unbalanced force is needed for something to change movement or change direction, e.g. aseesaw moving up and down because the forces are not equal.
Net force: - The sum of all the forces acting on a body is known as net force.
Difference between Balanced force and unbalanced force.
Balanced force:- If net force on a body is zero it is called balanced force. Balanced forces do not cause a change in motion. They are equal in magnitude and opposite in direction. Therefore, the resultant of these forces will be zero.
Example: Two persons pushing a box with the same force in opposite directions.
Unbalanced forces:- If net force on a body is non-zero it is called unbalanced force.
Forces whose resultant is not equal to zero are called unbalanced forces. For example: An arm wrestling competition among a strong person and a weak one. The resultant force will be in the direction of the force applied by the strong person.
What Is Inertia
By Newton's law we know that ,a body at rest will remain at rest and a body in motion will continue in a straight line unless it is compelled by an external force.This tendency of a body is called inertia.So we can say that 'Inertia is that property of a body due to which it resists a change in its state of rest or of uniform motion.'
When the brakes are applied to the bike the back seater moves forward why?
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IX Force and laws of motion solved questions: NCERT / CBSE Textbook Exercise Questions Solved
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1. Fill in the blanks:-
(a) New cells are formed from pre-existing cells.
(b) Movement of water molecules from their higher concentration to their lower concentration through a semi- permeable membrane is called Osmosis.
(c) The functional components of cell are plasma membrane, cytoplasm & nucleus.
(d) Protoplasm has two parts- cytoplasm & nucleoplasm.
(e) Nucleus, mitochondria & plastids have their own DNA & ribosomes.
(f) The shrinkage or contraction of the contents of the cell away from the cell wall is known as plasmolysis.
(g) The process by which Amoeba can engulf a food particle is endocytosis.
(h) Biogenesis is the manufacture of lipids required for making cell membrane.
(i) A cell that lacks nuclear membrane is called a prokaryotic cell & the nuclear region is called nucleoid.
(j) Movement of materials in & out of the cell takes place by diffusion & osmosis.
2. What is the advantage of multicellularity over unicellularity?
Ans- Division of labour.
3. What are the chromosomes made up of?
Ans- DNA & proteins
4. A cell placed in a solution swells up. What kind of solution is it? Why does it happen?
Ans- It is a hypotonic sol ution & water enters the cell by endosmosis causing the cell to swell up.
5. Why are lysosomes known as “suicidal bags”?
Ans- They secrete powerful digestive enzymes to digest the worn out and damaged cell
organelles as well as the cell itself when it loses its functional ability.
6.Why is the nucleus so significant in a cell?
Ans- Nucleus has the following important functions-
(i) It controls all cell activities
(ii) It contains hereditary material that transmits hereditary information from one
generation to the next
(iii) It helps in cell division
7. Differentiate between plant and animal cells.
1. PLANT CELL
1- Surrounded by two membranes- cell wall & cell membrane.
2- Possess three types of plastids chloroplasts, chromoplasts, leucoplasts.
3- Do not possess lysosomes.
4- Nucleus is towards the periphery.
5- Centrioles are absent
1- Surrounded only by cell / plasma membrane.
2-Do not possess plastids.
3-Possess lysosomes4-Nucleus is in the center ..
5-Centrioles present & help in cell division.
8. Give the major functions of the following cell organelles-
(a) Endoplasmic reticulum
RER-- Synthesis of proteins as it has ribosomes attached to it
SER- Synthesis of lipids required for making cell membrane
(b) Golgi apparatus-----------Storage & packaging of various products.
(c) Mitochondria------Production of ATP(Adenosine Triphosphate) which is a source of energy.
(d) Ribosomes ---Protein synthesis
(e) Golgi ApparatusStorage & packaging of various products.
f) LysosomesDigestion of worn out & damaged organelles
CBSE SOLVED TEST PAPERS CLASS - IX Science (Is matter around us pure)
Q. What is distillation?
Ans: Distillation is a method of separating mixtures based on differences in their boiling points. The compound which have higher boiling point will distillate later while the compound which have lowest boiling point will distillate out first.
Q. How is blood a heterogeneous substance?
Ans: Blood is a heterogeneous mixture because it a mixture of plasma, blood cells, glucose, proteins, mineral ions, hormones and many different salts dissolved in it. Thus the dispersed phase and dispersed medium are in different physical state and hence a heterogeneous mixture
Q. Calculate the mass of sodium sulphate required to prepare its 20% ( mass percent ) solution in 100g of water?
Ans: Mass % of Sodium sulphate in the solution = 20%
If the total mass of the solution = 100g Then mass of sodium sulphate = (20/100)x100 = 20 g
Mass of water = 100-20 = 80 g.
Q. Arun has prepared 0.01% ( by mass ) solution of sodium chloride in water, calculate the composition of soltution. How do you do it ?
Ans: Mass % of solute = 0.01 % of NaCl in water
Mass % of solute = [Mass of solute in grams / Mass of solution in grams] x 100.
Let us suppose that mass of the solution is 100 g.
Therefore mass of NaCl = 0.01 g
Mass of water = 100-0.01 = 99.99 g.
Q. How to separate components from mixture containing sulphur, charcol , pottasium nitrate?
Ans: The mixture containing sulphur, charcoal and potassium nitrate can be separated by following technique:
A. Add water to the mixture. Potassium nitrate will dissolve in water. Filter the solution.
B. Filterate is solution of potassium nitrate and residue contains sulphur and charcoal.
C. Evaporate the filterate, water will vapourize leaving behind potassium nitrate.
D. To the residue containing sulphur and charcoal add carbon disulphide, this will dissolve sulphur.
E. Filter this solution.
F. The filtrate will contain sulphur dissolved in carbon disulphide and residue will be charcoal.
G. Evaporate the filtrate, to obtain crystals of Sulphur.
Q. Acetone evaporates in normal room temp. Why do we have to heat it to its boiling point?
Ans: At room temperature the rate of evaporation of acetone is slow, to speed up the process to evaporate all the acetone in the mixture, we supply heat.
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Q1. Define force and its SI unit?
Q 2. Distinguish between balanced and unbalanced force?
Q3. State three laws of motion?
Q 4. What is inertia? Is inertia vector quantity. Justify?
Q5. What is impulse? Prove that Impulse is equal to change in momentum?
Q. 6. Define momentum and Prove that F = ma
Q 7. Is it possible that a body keeps on moving with uniform velocity with? If yes give reason also name scientist who explained this statement?
Q 8. Why a person sitting in bus fall forward when moving bus suddenly stops?
Q9. Why people sitting in bus fall backward when bus suddenly starts?
Q10. Why dust fall on beating carpet with stick?
Q11. Why leaves fall when we are shacking branch of tree?
Q12. Why an athlete runs certain distance before taking long jump?
Q13. When bus takes u turn, passengers sitting inside thrown a side. Why?
Q14. Explain why it is difficult for a fireman to hold a hose, which ejects large amount of water at a high velocity.
Q15. How a karate player can break a pile of tiles with a single blow of his hand?
Q.16. Why does a bullet when fired against a glass window pane make a hole in it, and the glass pane will smash it?
Q.17. Why is it advised to tie a rope on the luggage while you travel by the bus?
Q18.Why vehicles are provided with shocker?
Q19. Why does a bicycle begin to slow down when we stop pedaling?
Q20. State and verify the law of conservation of momentum?
Q21. When we hit at the bottom of the pile of carom coins, other coins fall vertically on the carom board why?
Q22. Two balls A and B of masses 'm' and '2 m' are in motion with velocities '2 v' and 'v' respectively. Compare
(i) their inertia (ii) their momentum and (iii) the force needed to stop them in the same time
Q 23. A 8000 kg engine pulls a train of 5 wagons, each of 2000 kg, along a horizontal track. If the engine exerts a force of 40,000 N and the track offers a friction force of 5,000 N then calculate:
(a) the net accelerating force (b) the acceleration of the train (c)the force of the wagon 1 on rest of the wagons.
Q 24.According to the third law of motion when we push on an object, the object pushes back on us with an equal and opposite force. If the object is a massive truck parked along the road side, it will probably not move. A student justifies this by answering that the two opposite and equal forces cancel each other. Comment on this logic and explain why the truck does not move.
Q25.A machine gun can fire 50 g bullets with a velocity of 150 m/s. A 60 kg stone is moving towards the machine gun velocity of 10 m/s. How many bullets must be fired from the gun to just stop the stone in its tracks?
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