 VERY SHORT ANSWER Question (1 Mark)
1. Name the tissue which is present at the growing tips of stem and roots. Ans: apical meristem 2. What do you mean by parenchyma? Ans: parenchyma is a kind of Simple permanent tissues provides turgidity to cells and store food and excretory substances. 3. Name the tissue which allows easy bending in various parts of a plant. Ans: Collenchyma is a kind of Simple permanent tissues Provides flexibility to plant parts which allows easy bending in various parts of a plant. 4. Which structure protects the plant body against the invasion of parasites? Ans: The dermal tissue of plants and hard cuticle covering protect the plant body from invasion of parasites and other harmful agents. 5. Where is intercalary meristem found? Ans: These are present at the base of leaf & internode region 6. Name the enucleate thin walled plant cells with perforated end walls. Ans: sieve r tubes [The end walls of sieve tube cells of phloem tissue are perforated by numerous pores are called as sieve plates or tubes] 7. Based on ability to divide, how many types of plant tissues are found? Ans: Apical meristem, Intercalary meristem, Lateral meristem: 8. Name the tissue present at the growing tips of root and stem. Ans: Apical meristem 9. What is the function of xylem? Ans: Xylem is a kind of conductive tissue that moving water from the roots through the stems to the leaves. 10. Name the tissues which make up the husk of coconut Ans: Sclerenchyma 11. What is lignin. Ans: Lignin is a complex polymer that is present in Schlerenchymatic tissues. Lignin is water proof material. 12. What do you mean by differentiation? Ans: The cells of permanent tissue loose the capacity to divide and attain a permanent shape, size and function. 13. Who coins term tissue? What is histology? Ans: Term tissue was coined by Bichat. Branch of biology deals with the study of tissue is called Histology . 14. How are simple tissues different from complex tissues in plant? Ans .The simple tissues are made of one type of cells and complex tissues are made of one or more types of cells. 15. Which type of plant tissue is an active site of cell division? Ans .Meristematic Tissue. 16. Meristematic tissue is responsible for the growth of the plant. Which type of meristematic tissue is responsible for the increase in girth of the plant? Ans .Lateral meristem is found on the outer walls of the stem and root of the plant. 17. Which type of permanent tissue does carrot contain? Ans . Parenchyma. Parenchyma is the type of plant tissue that stores food. So, carrot and all other fruits and vegetables contain parenchyma tissue. 18. Which type of permanent tissue help the aquatic plants to float? Ans .Aerenchyma is that type of parenchyma tissue that contains air cavities which help the aquatic plants to float. 19.Which type of parenchyma contains chlorophyll? Ans . Chlorenchyma. 20. Which substance is responsible for thickening of sclerenchyma walls? Ans . Lignin. Lignin gives mechanical strength to the cell wall of sclerenchymatous cells. Suberin is present in the bark of a tree and makes the cells impervious to water and gases. Pectin is a polysaccharide. Cutin is a waxy polymer. 21. Epidermis in desert plants has a thin waxy coating of a chemical substance. Name the chemical. Ans .Cutin. Cutin is a waxy polymer. Its waterproof quality limits the water loss in desert plants. 22. Which are the tubular structures present in xylem? Ans .Tracheids and vessels help in conduction of water and minerals in the plants.. 23. Name the part of phloem with perforated walls. Sieve tubes. of Phloem tissues are responsible for conduction of nutrients. Sieve tubes have perforated walls but lack a nucleus. Companion cells, phloem parenchyma and phloem fibers are other parts of phloem. 24. Name the dead part of phloem. Ans . Fibers. Fibers give strength to the plant body and are generally non-living. 25. what are companion cells and are associated with what? Ans: Companion cells are the specialized parenchyma cells associated with the sieve tube elements of phloem. They help in the development and function of a sieve-tube element. ompanion cells move sugars and amino acids into and out of the sieve elements. Further study Class IX Plant Tissue and animal Tissue Solved Question[Animal Tissue] Class IX Biology for Term-1
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   The Cell & Fundamental Unit of life - Extra Score Notes
The Cell & Fundamental Unit of life - Solved Test paper-01 The Cell & Fundamental Unit of life - Solved Test paper-02 The Cell & Fundamental Unit of life - Solved Test paper-03 The Cell & Fundamental Unit of life - Solved Test paper-04 The Cell & Fundamental Unit of life - Solved Test paper-05 The Cell n Fundamental Unit of life -Notes The Cell n Fundamental Unit of life - Chapter Notes Visit 9th Chapter : The Fundamental Unit of Life 25. (a)Name an exotic variety of honey bee grown in India. (b) What is called the rearing of fish on a large scale? Ans: (a)Pisciculture (b) Apis Cerana indica 26. Name two exotic cattle breed with long lactation period? [2014 (T-I)] Ans: the period of milk production after the birth of a calf is called lactation period. Jersey and Brown Swiss are two exotic cattle breed having long lactation period. 27. In what way boilers, feed is different from layers? [2014 (T-I)] Ans: Broilers feed is protein rich with adequate fat. The level of vitamins A and K is kept high in the poultry feeds. 28. Which one boiler or layers mature earlier? [2014 (T-I)] Ans: Broilers have fast growth rate 29 What type of shelter is provided to boiler and layers? [2014 (T-I)] Ans: Broilers do not require much space and lighting 30. Mention the preventive and control measure used before grain are stored? Ans: cleaning of the produce before storage, proper drying of the produce first in sunlight and then in shade, and fumigation using chemicals that can kill pests. For more solved paper visit Improvement in food resourcess
Animal Tissue 1. Name the tissue that stores fat in our body. Ans: Adipose Tissue found below the skin and between internal organs 2. Name the tissue which forms the lining of kidney tubules and ducts of salivary glands. Ans: Simple cuboidal epithelium Tissue 3. Name the fibrous tissue with great strength but limited flexibility. Ans: Tendon [A tendon is a fibrous connective tissue which attaches muscle to bone] 4. What do you mean by glandular epithelium? Ans: Glandular Epithelium is kind of animal Epithelium tissue composed of cells that are specialized to produce and secrete substances into ducts or into body fluids. 5. Where is cuboidal epithelium found? Ans: cuboidal epithelium is found in kidney tubules, thyroid vesicles & in glands (salivary glands, sweat glands). 6. Which tissue is responsible for movement in our body? Ans: Movements are brought about in our body with the help of muscular tissues 7. Where is involuntary muscles found in our body? Ans: Involuntary muscles are found in the walls of stomach, intestine, urinary bladder, bronchi, iris of eye and heart. 8. Name the tissue by which two bones can be connected with each other Ans: The bones at a joint are held together by strong bands of tissue called ligaments which allow the bones to move. 9.Name the tissue found in the iris of our eye. Ans: Non striated muscles tissue 10. What is the function of connective tissue? Ans: connective tissue provide support to different organs & keeping them in place 11.Name the connective tissue which helps in repair of tissues. State where this tissue is found. Ans: The Areolar connective tissue helps in the repair of tissues. Areolar connective is found between the skin and muscle cells, around blood vessel and nerves, in the bone marrow and space inside the organs. It consists of macrophages, fibroblast, collagen fiber and mast cells. These fibres provide support and strength to the organs 12. Draw diagram of a neuron showing nucleus and cell body Ans 13. Name the tissue that smoothen bone surfaces at joints. Describe its structure with the help of a diagram. Ans: Cartilage is a tough, elastic, fibrous connective tissue found in various parts of the body, such as the joints, outer ear, and larynx.It smoothens the bones surfaces. 14. Give two differences between tendon and ligament Ans: Tendon: 1. They attach skeletal muscle to bone and are inextensible. 2. These are strong, fibrous and very dense connective tissues which have parallel bundles of collgen fibres. 3. In between bundles flat elongated tendon cells are present. Ligament: 1. These connect two bones and held then in position and can be pulled or stretched. 2. These are strong, dense connective tissue, fibres arranged devilry, mainly of elastin fibres. 3. These cells lie between the fibres. 15. (a) State two important functions of areolar tissue. (b) Why are skeletal muscles known as striated muscles? [2010 (T-I)] Ans: (a) Areolar connective tissue is found between the skin and muscles, around blood vessels and nerves and in the bone marrow. It supports internal organs and helps in repair of tissues. (b) Skeletal muscles have alternate light and dark bands or striations when stained appropriately. So, they are called striated muscles. 16. Write any two points of difference between structure and location of striated and unstriated muscles. Ans:
17. Give two points of difference between striated and cardiac muscle with respect to structure and location. Ans:
18. Blood is considered to be a connective tissue. Give reason Ans: Blood is considered a connective tissue for two basic reasons: (a) embryologically, it has the same origin (mesodermal) as do the other connective tissue types and (b) blood connects the body systems together bringing the needed oxygen, nutrients, hormones and other signaling molecules, and removing the wastes. 19. What is ligament? Which type of tissue ligament is? Ans: Two bones can be connected to each other by another type of connective tissue called the ligament. This tissue is very elastic. It has considerable strength. Or, Ligament is a short band of tough, flexible fibrous connective tissue which connects two bones or cartilages or holds together a joint. 20. How does fluid connective tissue differ from other connective tissues? Ans: Fluid connective tissue has a liquid matrix (plasma) like blood but other connective tissues except lymph have solid matrix.  Q. 01. A ball hits a wall horizontally at 6m/s. It rebounds horizontally at 4.4m/s. The ball is in contact with the wall for 0.04s. What is the acceleration of the ball?
Solution: Initial velocity(u) = 6.0m/s Final velocity(v) = -4.4 m/s (because direction of ball has become opposite) time = 0.04 s thus, acceleration (a) = (v-u)/t a= [-4.4 – 6.0]/ 0.04 a= (-10.4)/0.04 after multiplying -10.4/0.04 by 100/100 (to make calculations simpler), we get a= -1040/4 = -260 m/s2 Q.02. A cheetah is the fastest land animal and it can achieve a peak velocity of 100 km per hour up to distances less than 500 metres. If the cheetah spots his prey at a distance of 100 meters what is the minimum time it will take to get its prey? Solution: If the cheetah spots the prey at its top speed, the cheetah will hunt down the prey with the speed of 100 km/h. = 27.7 m/s Now, time = d/s = 100/27.7 = 3.6 sec. So, the minimum time the cheetah will take to get the prey is 3.6 s. Q.03. A police jeep is chasing velocity of 45 km/h. A thief in another jeep moving with a velocity of 153 km/h. police fires a bullet with muzzle velocity of 180 m/s the velocity it will strike the car of the thief is? Solution: Given: Velocity of police jeep = 45 m/hr = 12.5 m/s Velocity of thief’s jeep = 153 km/hr = 42.5 m/s Velocity of bullet = 180 m/s Now, since bullet is fired from police jeep which is going at 42.5 m/s, Therefore, velocity of bullet is (180 + 12.5) = 192. 5 m/s. To calculate velocity with which bullet with hit the thief we use concept of relative velocity. Therefore, we have VBT = VB - VT Here VB is velocity of bullet and VT is velocity of thief VBT = 192. 5m/s - 42.5 m/s = 150m/s Q. 05. A car is travelling at 20 m/s along a road. A child runs out into the road 50 m ahead and the car driver steps on the brake pedal. What must the car’s deceleration be if the car is to stop just before it reaches the child? Solution: u = 20m/s ; s = 50m and v = 0m/s Using, V^2 = u^2 + 2as a = (v^2 – u^2)/2s a = (0^2 - 20^2)/(2 x 50) = - 4m/s^2 Acceleration = -4 m/s2 or, retardation = 4 m/s2 Full paper Download More related material VISIT: Motion and Rest Q. 26. How is pressure developed in a container full of a gas ? Gaseous molecules are free to move in the container. The molecules collide with each other and with the wall of the container. On the wall the molecules exert force. The force per unit area is called the pressure of the gas. Q. 27. What are the applications of interconversion of states of matter ? The inter conversion of states of matter is used to : (i) generate electricity in thermal power plant. (ii) separate nitrogen and oxygen from air by liquefaction. (iii) prepare machine parts. (iv) prepare room fresheners. (v) prepare ice-creams. Q.28. What happens to a gas if its inter molecular space is reduced ? If the inter molecular distance between molecules of a gas is reduced, it changes to liquid. Further reduction it is changed to solid. Q. 29. Which of the following substances is most compressible?CO2, H2O, NaCl. Answer: CO2 Q. 30. Which property of a gas results in steady pressure of the gas ? Answer: The constant bombardment of the gas molecules with the walls of the container Q. 31. In which of the following substances, weakest inter molecular force is expected: H2O, CH3OH, Answer: Al, He. He Q. 32. One gas mixes with another gas easily. What is this property called ? Answer: Diffusion. Q. 33. Describe briefly (i) Melting point and (ii) Boiling point. Answer: (i) Melting point :- The melting point of a solid is that temperature at which it changes into the liquid. From the beginning to the end of melting, the temperature does not change. (ii) Boiling point :- The boiling point of a liquid is that temperature at which a liquid starts boiling at the atmospheric pressure. Q. 34. How would you find out whether a sample of sodium chloride is pure or impure ? Answer: Pure substance melts at its melting point. If sodium chloride melts at 97ºC,then the sample is pure otherwise impure. Q. 35. How will you find out whether a sample of water is pure or impure ? Answer: The boiling point of water at one atmospheric pressure is 100ºC. If the given sample of water boils at 100ºC then it is pure otherwise impure. Q. 36. Why do solids have a fixed shape and gases have neither a fixed shape nor a fixed volume ? Answer: In solids the molecules are close due to intermolecular force. The molecules are arranged in a fixed pattern. The movement of molecules are not possible. Hence its shape are fixed . In gases the intermolecular force are negligible. Molecules are free to move in any direction. The distance between the molecules is very large. Hence gases do not have fixed shape and fixes volume. Q. 37. What is Vaporization ? Answer: The change of liquid into its gaseous form (vapour) when temperature of liquid is increased is called vaporization. Q. 38. What is Sublimation ? Answer: A change of state directly from solid to gas without changing into liquid state or vice-versa is called sublimation. Q. 39. What is Condensation ? Answer: A change of gaseous state to liquid state or solid state is called condensation. Q. 40. What is Deposition ? Answer: A change of vapour to solid is called deposition. It is the reverse process of sublimation Q. 41. What is Liquefaction ? Answer: A substance which is gas in normal condition, when changed to liquid by cooling it under pressure is called liquefaction. Q. 42. What is Solidification ? Answer: A substance which is a liquid in normal condition, when changed to solid to by cooling it under pressure is called solidification. Q. 43. What is difference between vapour and gas. Answer: Vapour is used to denote the gaseous state of fluids which exists as liquids under normal conditions, while gas is used to denote the gaseous state at normal temperature. We always speak water vapour and carbon dioxide gas. Q. 44. Why do the three states of matter differ ? Answer: The three states of matter differ due to : (i) Difference in packing and arrangement of molecules in the three states. (ii) Intermolecular force of attraction are different in the three states. Q. 45. Why does the temperature remain constant until whole of the solid changes into liquid, though the heat energy is constantly supplied ? Answer: During melting, temperature of the liquid phase remains the same as that of the liquid phase. The heat energy supplied is utilized to destroy the crystal pattern and is stored in the liquid phase as potential energy. Q. 46. Why does the temperature remain constant during boiling though heat is constantly supplied ? Answer: The heat energy supplied is utilized to destroy the intermolecular force amongst the molecules of the liquid and is stored as potential energy. Q. 47. Why does a gas fill a vessel completely ? Answer: The molecules of a gas are moving continuously with a high speed in all direction and intermolecular force amongst the molecules are negligible. Hence it fills the vessel completely. Q. 48. How does the state of matter changes from solid to liquid and then to gas on heating ? Answer: In solids particles are very close. When heat is given to solid, the distance between particles increases and it takes the shape of the container. On further heating the distance between the particles increases in such an extent that the molecules are free to move. This is a gaseous state. Q. 49. Explain the term boiling on the basis of kinetic theory of gases. When a liquid is heated up to its boiling point, the heat is absorbed by the molecules and stored in the form of potential energy . When potential energy of the molecule is is increased, the intermolecular distance is increased. It means intermolecular force of attraction reduces to zero. The molecules start escaping in air causing the liquid to boil. Q. 50. Explain the term melting on the basis of kinetic theory. Answer: The molecules of solids vibrate about its mean position. When it is heated, its kinetic energy is increased and it starts vibrating vigorously. At the melting point the intermolecular force of attraction is reduced and particles can not hold each other with strong force to hold them in their fixed position. The crystalline structure is destroyed and it starts melting. Matter in our surrounding solved questions class9 Step-01 Read_Download  
New Class 9 and 10 CBSE Sample papers are added for final exam 2018. Kindly practice it for getting good marks. All the best !! JSUNIL
Class X Final exam 2018 Class IX Final exam 2018 Question based on practical skills Solved (2 marks) Class-09 [2018] Download File      Class 9 and 10 CBSE Sample papers are added for final exam 2018. Kindly practice it for getting good marks. All the best !! JSUNIL
Class X Final exam 2018 Class IX Final exam 2018 9th gravitation Extra score solved Questions
Download File  PRACTICALS FOR SUMMATIVE ASSESSMEN-I : 1. To test (a) the presence of starch in the given food sample (b) the presence of the adulterant metanil yellow in dal. 2. To prepare a) a true solution of common salt, sugar and alum b) a suspension of soil, chalk powder and fine sand in water c) a colloidal of starch in water and egg albumin in water and distinguish between these on the basis of - transparency - filtration criterion - stability 3. To prepare a) a mixture b) a compound using iron filings and sulphur powder and distinguish between these on the basis of: i. appearance i.e., homogeneity and heterogeneity i. appearance i.e., homogeneity and heterogeneity ii. behaviour towards a magnet iii. behaviour towards carbon disulphide as a solvent. iv. effect of heat. 4. To carry out the following reactions and classify them as physical or chemical changes. a. Iron with copper sulphate solution in water. b. Burning of magnesium in air. c. Zinc with dilute sulphuric acid d. Heating of copper sulphate e. Sodium sulphate with barium chloride in the form of their solutions in water. 5. To prepare stained temporary mounts of (a) onion peel and (b) human cheek cells and to record observations and draw their labeled diagrams. 6. To identify parenchyma and sclerenchyma tissues in plants, striped muscle fibers and nerve cells in animals,from prepared slides and to draw their labeled diagrams. 7. To separate the components of a mixture of sand, common salt and ammonium chloride (or camphor) by sublimation. 8. To determine the melting point of ice and the boiling point of water. 9. To establish relationship between weight of a rectangular wooden block lying on a horizontal table and the minimum force required to just move it using a spring balance. 10. To determine the mass percentage of water imbibed by raisins. CBSE Sample Papers Class 9 for Lab Skill SA1
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