COUNCIL OF HIGHER SECONDARY EDUCATION, MANIPUR

MODEL ANSWER, 1999

HOME SCIENCE(THEORY)

Model Answer/Scoring Key

 

Full Marks-70
Pass Marks--21

SCORING KEY/OUTLINE ANSWER AND MARKING SCHEME

1 a) Pepsin 1 1
2. (c) Water 1 1
3. (a) Big tree 1 1
4. (d) Higher 1 1
5. (c) Oxygen 1 1
6. Renin 1 1
7. Glycogen, in the liver 1 1
8. Prevention or Food Adulteration. 1 1
9.  At the Back of the house. 1 1
10.  To Prevent the internal pressure becoming greater than the vessel can bear. 1 1
11. Fats and alkalies.  ½+1/2 1
12. Boiling, lime water, permutit process. 1 1
13. By the breath and discharges from the mouth and nose of patients while coughing and sneezing. 1 1
14. Stomach upsets, stomach ache, gas formation, nausea. 1 1
15. Colon, especially the caecum. 1 1
16.
  1. Chewing of food
  2. Swallowing of food
  3. Churning action in the stomach
  4. Rhythmic contractions of the intestinal tract.
 1/2 2
17.  Metallic contamination :- Contamination of canned foods from the used of tinplates and lacquer of inferior quality.
Results in the accumulation of arsenic, lead or mercury in the body, symptoms-diziness cramps, paralysis. blindness etc.		 1
1		 2
18. Electric iron.
1-diagram
1-labelling		   6
19.  Dry cleaning process :- Three methods- 
(a) Immersionof the garment in a grease solvent (white-petrol)
(b) Spot cleaning-sponging dirty spots with a grease solvent
(c) Absorption of grease by applying grease absorbent.		 1
1/2
1/2		 2
20.  (a) The neck measurement is taken around the base of the neck.
(b) Diagram-neck measurement.		 1
1		 2
21.  I.Q. Intelligence Quotient is the index of a child’s brightness while using the stand ford - Binate scale of intelligence test, I.Q. is calculated by dividing mental age by Chronological age and the result is multiplied by 100. Thus I Q is computed as: I.Q.= MA/CA X100 1+1 2
22.

Factors :- Heredity, Nutrition, Emotional stress. Body Build and Health status. Short parents have short children and tall parents generally tall children. Well fed children grow more than ill fed children. Emotional stress adversely affect growth In general boys are taller and heavier than girls. Health status affects growth.

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23

 Good sized bed room should be 152x122. It should be divided into three areas-sleeping, dressing and storage of clothes. Privacy, cross ventilation and convenient for proper furniture arrangement are important characteristics.

 1/2 2
24. (i) Uses of amino acid in our body:- Synthesized into protein to build new cells, to replace worn out cells and to form such body regulators as hormones, enzymes, antibodies and vitamins
(ii) Formation of new amino acids peculiar to the species by exchanging their amino group with other amino acids.
(ii) Conversion of remaining Amino acids into fats and carbohydrates or broken down to be used as fuel after oxidation. 		1
1
1		 3
25. Intrinsic value is one that is important by itself whereas instrumental value is means to attaining other values. The love of man and woman, father and son which are expressions of beauty in human relations are intrinsic values. Technological satisfaction that is in making objects based on skillful workmanship is an instrumental value. 1 3
26

Careful planning is a must. Furniture should be kept in the minimum. Living room is partitioned off from dinning room by a large wooden partition with shelves on either side. Accessories, books etc. Placed on the shelf facing the living rooms whereas Crochery, Cutlery and other equipments are placed on the other side. Living rooms is converted into a bedroom at night and dining room into study room.

 1 3
27. (a) Type of stain and type of public should be identified.
(b) Effect of reagent should be tested inside a seam or hem of the fabric.
(c) Dilute reagents should be used for silk and synthetic fabrics.
(c) Reagents should be used in small amounts
(d) Stein should be removed as soon as the correct reagent is identified.
(f) Stain should be removed when they are fresh.
(g) Acid reagent for alkaline stain and vice versa.		 1/2 3
28.

The child should be undressed. Only a light sheet or light blanket should be used for covering him. Only a part of his body should be exposed at a time and should be rubbed for few minutes by using a wet towel. Turn by turn arms, legs, chest and back should be rubbed by the wet towel. The purpose of the wet rub is to bring the blood to the surface by rubbing and to co,.-1 it by the evaporation of the water off the skin.

 1 3
29.

(i)  Enzyme: -Action of enzyme in plants and animal food change food composition. Continued action of enzyme renders food inedible
(ii) Micro-organisms :- Bacteria, Yeasts, Moulds-Bacterial spoilage causes sour teste, off flavour. Yeast cause fermentation sugars present in the food are broken up to form alchohol and carbon dioxide
(iii)  Insects:- Insects cause food spoilage directly by eating the kernels and destroying the structures and containers Indirectly assist in the dissemination of moulds, micro-organisms including the harmful germs.
(iv) Temperature:- Damage foods either directly by changing physical state or indirectly by accelerating the activity of enzymes and bacteria 
(v) Moisture :-Perishable food get spoilt faster than semiperishable and non-perishable foods -the difference is their water content.
(vi) Light :- Accelerates rancidity in fate and vitamin foods.
(vii) Air :-Oxygen in the air increases rate of development of rancidity causes unpleasant flavours, harmful chemical changes.

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1
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1		 6
30.  Principles underlying proper flower arrangement:-
(i) Harmony-Harmony of the flowers container and the setting.
(ii) Balance-Semi formal, Informal or formal. 
(iii) Rhythm-Rhythm in line, size or colour.
(iv) Proportion-Tall vase-tallest stem should be one and half times the height of the vase. Broad containers same as the width of the vase.
(v) Movement :- Basic movements like vertical or slightly spreading outward spreading, horizontal and downwards. 
(vi)Colour :-Colours in the prang chart and their harmony and contrast-effect of light on colour.		 1
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31

Cotton, linen and silk fabrics require stiffening.

  1
  (a) Pre-treatment- (i) Mending (ii) Stain removal
(b) Washing- (i)Water-100oF ( warm ) and soft water.
(ii) Soap-Soap flake and soap fluid -should not contain much alkali.
(iii) Sleeping :- Doesn’t require steeping, soiled white and pale coloured cloth may be steeped in warm water for a few minutes.
(iv)  Process of cleaning :-Kneading and squeezing or by section washing, Soiled parts rubbed with additional lather. Very soiled-addition of little amount of borax or ammonia-Avoid friction.
(v) Rinsing :-Rinsed twice or thrice in warm water. Last rinse in cold water. Stiffening :- Stiffened by final cold rinse. Extra stiffness-addition of gum water in the final rinse.
(vi) Drying :- in the shade
(c) Finishing-
(i)  Iron when evenly damp-warm Iron.
(ii) Airing :-after ironing before they stored to remove the heat left from ironing.		 1
1
1
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1		 6
32.

Social development during childhood years. Infancy :-Smile in response to other persons.
 Early child hood:- Two years-sociable with other children, given and take exchange between two or more children. Three years-increase in group activities.
 Late childhood:- Five years-play in groups of five/six members. Six years-Co-operation friendliness, sympathy, Competition, fighting and quarrelling-social behaviour is much doter mined by particular experiences that a child gets. Response of adults forwards his actions has powerful influence in shaping social development.