Metal and Non Metal solved questions for class 10 1. Why can jewellery be made out of gold and silver easily? 2. Why do diamond and graphite have different physical properties? 3. Name any one metal that does not react with dilute H2SO4 to liberate H2. 4. Write the name given to the alloy of lead and tin that which is used for welding electrical wires together. 5. Name one non–metal with metallic luster. 6. Name the various types of ores from which metals are extracted. Which type of ore is the most common for most metals and why? 7. Why are metals used for making cooking vessels? Why copper and silver are most commonly used for making cooking vessels? 8. Define minerals, ore and gangue 9. Why do metals and non–metals react? Explain with the help of an example 10. What is the need of refining? What is electrolytic refining? SOLUTIONS 1. Because gold and silver are malleable and ductile. 2. Because the arrangement of atoms in the two is different. 3. Copper or silver 4. Solder 5. Iodine 6. The ores used in the extraction of metals are (i) oxide ore (ii) sulphate ore (iii) carbonate ore (iv) halide ore The ores of many metals exist as oxides. This is because oxygen is very reactive element and is present in a large amount on the earth. 07 Metals are generally good conductors of heat and have high melting points. So metals can withstand high temperature without melting. Metals are malleable thus, they can be given various shapes Silver and copper are best conductors of heat and they are malleable. Hence, they are preferred for making cooking vessels 08. Minerals: The elements or compounds, which occur naturally in the earth’s crust, are known as minerals. E.g. Magnesium oxide, ferrous oxide. Ores: At some places, minerals contain a very high percentage of a particular metal and the metal can be profitably extracted from it. These minerals are called ores. E.g. Ore of iron in hematite. Gangue: Ores mined from the earth are usually contaminated with large amounts of impurities such as soil, sand etc and are called gangue. E.g. gangue present along with hematite is silicon dioxide. 09. Metals are electropositive elements and have a tendency to lose electrons and acquire a positive charge while non–metals are electronegative elements and tend to gain electrons and acquire a negative charge. By doing this both metals and non metals attain the stable noble gas configuration. For the metals and non–metals to react, the electron lost by the metal atom will have to be gained by the non metal atom. The ions formed in this way are held together by strong electrostatic forces of attraction which results in the formation of ionic compounds. 10.The metals produced by various reduction processes are not pure. They contain impurities, which must be removed to obtain pure metals. The process of purification of metals is known as REFINING. Most widely used method for refining impure metals is electrolytic refining. Electrolytic refining means purification of metals by electrolysis. Many metals, such as copper, zinc, tin nickel, silver, gold etc are refined electrolytically. Click here for further study CBSE Extra Score Notes X Metals and Non Metals CBSE Class X Science Term-1
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 X Biology term-1 10th Science NCERT Solutions Click to above Quick Link
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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 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. |
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