HERMANN GMEINER SCHOOL, FARIDABAD
HOLIDAY’S HOMEWORK (for summer vacation)
SUBJECT : MATHEMATICS
CLASS – XII A,C
From NCERT PART-1:
CHAPTER:3- EXERCISE 3.4 (Q.NO. 15,16,17)
CHAPTER:4- EXERCISE 4.2(Q.NO. 10,12,13,14), EXERCISE 4.6(Q.NO. 13,15,16)
CHAPTER:12- EXERCISE 12.2(Q.NO. 2,4,8), MISCELLANEOUS EXERCISE(Q.NO. 3,5,10)
MISCELLANEOUS EXAMPLE(Q.NO. 9,10,11)
From NCERT PART-2:
*On Page No. 290-291: REVISE ALL THE DERIVATIVES , INTEGRALS FORMULAE and
ALSO WRITE THE SAME IN A NOTEBOOK (20-25 PAGES)
* REMIND ALL THE TRIGONOMETRIC FUNCTIONS FORMULAE FROM XI NCERT
POWER POINT PRESENTATION GROUPWISE ON THE TOPICS: VECTORS, 3D
GEOMETRY, CONTINUITY & DIFFERENTIABILITY, INVERSE TRIGONOMETRIC
FUNCTIONS, PROBABILITY
Subject
Political Science
Practice and learn Sample Papers of Political Science from 2010 to 2014
Provided by the subject teacher.
Subject- Business studies
Part-A:
-Prepare a project file based on BUSINESS ENVIRONMENT as per CBSE
guidelines.
-Prepare a project file on any one of the given topic:(a) Principles of Management – (i)Principles of F.W.Taylor / (ii)Principles of Henry
Fayol.
(b) Marketing Management.
- Prepare a PPT on any one topic given below:(a) Planning (b) Financial Market (c) Consumer Protection (d) Directing.
Part B:
-Read Unit -1,2,3&4 from NCERT Text book (Part-I)
- Write & learn the given questions:(a) Ch-1: Long Answer type questions 1 to 5. (NCERT)
(b) Ch-2: Long Answer type questions 1 to 5. (NCERT)
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Subject- Chemistry
Class- XII –A
Project work
i)
ii)
iii)
iv)
v)
Study of Oxalate ion content in guava fruit (Roll no. 1-5)
Study of adulterants in food stuffs (Roll no. 6-10)
Comparative Study of commercial anta acid (Roll no. 11-15)
Study of foaming capacity of soaps (Roll no. 16-20)
Study of the effect of metal coupling on the rusting of iron (Roll no. 21-26).
BIOLOGY HOME ASSIGNMENT(SUMMER BREAK)
CLASS - XII
Q1Mention two functions of the codon AUG.
Q2.Mention one positive and one negative application of amniocentesis.
Q3.An anther with malfunctioning tapetum often fails to produce viable male gametophytes.
Give one reason.
Q4.How many haploid cells are present in a mature female gametophyte of a flowering
plant? Name them.
Q5.When a tall pea plant was selfed , it produced one-fourth of its progeny as dwarf. Explain
with the help of across.
Q6.Name the enzyme involved in the continuous replication of DNA strand. Mention the
polarity of the template strand.
Q7.The turkey usually produces females for several generations. How is this possible?
Q8.How many pairs of nucleotides (base pairs) are found in human and Escherichia coli
DNA.
Q9.Mention the reasons for difference in ploidy of zygote and primary endosperm nucleus in
an angiosperm.
Q10.How does a test –cross help in identifying the genotype of the organism? Explain.
Q11.”The replication of DNA molecule is semiconservative”.Justify.
Q12. What is replication?Quote the original statement of Watson and Crick regarding
replication of genetic molecule.
Q13-Where does triple fusion take place in a flowering plant? Why is it so called? Mention its
significance.
Q14.If you squeeze a seed of orange you might observe many embryos of different sizes.
How is it possible? Explain.
Q15.Placenta acts as an endocrine tissue .Justify.
Q16.Explian the zygote intra fallopian transfer technique (ZIFT).How is intrauterine transfer
technique (IUT) different from it?
Q17.Write some of the important goals of HGP.
Q18.In human beings blue eye colour is recessive to brown eye colour. A brown eyed man
has blye eyed mother. Answer the following :
(a) What is the genotype of the man and his mother?
(b) What are the possible genotypes of his father?
SECTION -C
Q19.Draw a longitudinal section of a post- pollinated pistil showing entry of pollen tube into a
mature embryo-sac.Lable filiform apparatus , chalazal end, Hilum,antipodals,male gametes
and secondary nucleus.
Q20.Describe the initiation process of transcription in bacteria.
Q21.Explain convergent and divergent evolution with the help of one example of each.
Q22.In a series of experiments with streptococcus and mice F .Griffith concluded that Rstrain bacteria had been transformed.Explain.
Q23.(a) Give a schematic representation showing the events of spermatogenesis in human
male.
(b) Describe the structure of a human sperm.
Q24.Draw a well illustrated diagrammatic representation of the operation of the lac-operon.
Q25.What is parturition and foetal ejection reflex? Name the hormon and its function during
the events.
Q26.Mention a sex –linked recessive disease which was found among descendents of
queen Victoria , because she was a carrier of the disease.However the queen was not
suffering from the disease in question.Explain the inheritance of the disease
Q27.Why both the DNA strands are not copied during transcription? Explain .
SECTION-D
Q28.(a) How does a chromosomal disorder differ from a Mendelian disorder?
(b)Name any two chromosomal aberration associated disorders.
(c) List the characteristics of the disorders mentioned above that help in their
diagnosis.
Q29.When and where are primary oocytes formed in a human female ? Trace the
development of these oocytes till ovulation(in menstrual cycle).How do gonadotropins
influence this development process?
Q30.Write the symptoms of haemophilia and sickle-cell anaemia in humans.Explain how the
inheritance pattern of the two diseases differ from each other.
Q31. (a) State the law of independent assortment.
(b) Using punnett square demonstrate the law of independent assortment in a dihybrid
cross involving two heterozygous parents.
Q32.Trace the development of megaspore mother cell up to the formation of a mature
embryo-sac in a flowering plant.
Q33.(a)Draw a labelled longisectional view of an albuminous ‘seed’.
Q34.Describe the post –zygotic events leading to implantation and placenta formation in
humans.Mention any two functions of placenta.
Q35.A woman has conceived and implantation has occurred in her uterus.Explain the
sequence of changes upto parturition which takes place within her body .
Q36.’’Incompatibility is a natural barrier in the fusion of gametes .’’ Justify the statement.
Q37.(a)Give reasons for :
(i)Both strands of DNA are not copied during transcription .
(ii)Transcription and translation in bacteria ca be coupled.
(b) Differentiate between the process of transcription in prokaryotes and eukaryotes.
Q38.Stanley Miller performed an experiment by recreating in the lab the probable conditions
of the atmosphere of the primitive earth .
(a) What was the purpose of the experiment ?
(b) In what form was the energy supplied for the chemical reaction to occur ?
(c)What is biogenesis?
(d) Give a diagrammatic representation of Miller’s experiment .
Q 39.Explain the following :
(a)Medical termination of pregnancy (MTP)
(b)Permanent method of birth control.
Q40.”only DNA is the genetic material ,not protein or RNA” – Hershey and chase proved it
experimentally. Discuss
Q41.Discuss in brief the origin and evolution of man .
Q42.What is menstrual cycle ? Which hormones regulate menstrual cycle?How many eggs
are released from the ovary of a woman in a month.
Q43.What is adaptive radiation? Give an example of it .Can we call human evolution as
adaptive radiation?
Q44. What is DNA finger printing? Mention its application.
Q45.Some of the Mendel’s laws of inheritance are not stand true in the light of later studies
of linkage and incomplete dominance .Mention them .Name and explain the law of Mendel
which still stands true and accepted as such.
Q46. Which is a better mode of reproduction asexual or sexual and why? Why is the
offspring formed by asexual reproduction referred to as clone?
Q47.Differentiate between microsporogenesis and megasporogensis .Name the structures
formed at the end of these two events.
Q48. Gautam was a sincere and studious boy. But recently he has been under lot of stress
due to continuous nagging and undue pressure to excel by his parents. He met some
notorious kids of his school who forced him to take drugs to distress himself. After little
resistance, he took to drugs and became addicted. After finding about this, Gautam’s
parents put him in a rehabilitation centre. When Gautam returned from the centre
after few months, he became his earlier self and his parents also became supportive.
Answer the following questions based on the above information:
(i) What values are being promoted in the above case?
(ii) Suggest some ways by which Gautam can avoid turning to drug abuse again?
(iii) How would the relation between Gautam and his parents improve after this
incident?
Q49A group of doctorate students were replicating Miller’s experiment to study origin
of life. Mistakenly, one of the students added sulphur dioxide (SO2) to the reaction
mixture. As a result, instead of amino acids and sugars they obtained some new
compounds.
Answer the following questions based on the above information:
(i) Should the students note down the results obtained as such or manipulate
them to obtain the expected results? What values will the students promote?
(ii) Should the students repeat the experiment in the same manner to get the
same result or leave the experiment and start working on their original
experiment?
(iii) What is the need of repeating the experiment?
Q- 50 A married couple goes to the hospital for regular check-up of the lady who is
pregnant. The man is curious and asks the doctor to tell him the sex of the child.
But the doctor refuses.
Answer the following questions based on the above information:
(i) Did the doctor do the right thing? Which value is being promoted by the
doctor?
(ii) What is this process of determining the sex of the foetus called?
(iii) What would be the result if all the doctors do not act in the same manner as
above mentioned?
HERMANN GMEINER SCHOOL
Holiday Homework
.Class XII
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subject Economics
Prepare all key points from reference book T.R JAIN
unit 1,2,3 and write it in a H.H.W copy or in file
R.N 1 to 5 will find new policies initiated by prime minister in 2014-15
R.N 6 to 10 will collect budget summary of 2015 budget
R.N 11 to 15 will collect information regarding INDIAN BALANCE OF
PAYMENT(latest review note in h.h.w copy)
R.N 16 to 20 will collect information about working of R.B.I
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R.N 21 to 25 will collect information regarding INDIAN TAXATION SYSTEM what
kind of taxes are in use
R.N 26 to 30 will collect information about INDIAN FOREIGN TRADE
R.N 30 to 35 will prepare chart presentation onGOVT. BUDGET, BALANCE OF
PAYMENT, RESERVE BANK OF INDIA, FOREIGN TRADE AND NEW VISION OF
PRIME MINISTER MODI respectively
learn with great fun………
Summer Holiday Homework 
Class XII
A, B, C, D
Q1. Write three each in your note-book.
(i) Notice
(iii) Unseen Passage
(ii) Note-making
(iv) Advertisements
Q2. Read the editorial section of any English newspaper and write your comment on it.
Q3. Collect at least 10 articles on current topics, read and paste in your notebook.
Q4. Read 1-15 chapters of Novel (The Invisible Man) and write the summary and question &
answers.
Physical Education XII class
1. Complete practical file record book.
2. Complete Textual Questions of all five chapters in notebooks.
3. Learn all 5 chapter
Class XII subject: - Accountancy
1. Make a project file on comprehensive project and submit it on 1st week of July.
2. Class XII – PHYSICS (2015-16)
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Q.1.
Do page no 1/276 Pradeep’s important question for Board Examination.
Q.1.
Do page no 2/205 Pradeep’s important question for Board Examination.
Q.3.
What is a radial magnetic field. How has it been achieved in MCG.
Q.4.
Explain main function of electric and magnetic field in a cyclotron.
Q.5.
A Cyclotron is not suitable for accelerating electrons. Why?
Q.6.
Why do we not use Galvano meter as ammeter?
Q.7.
Explain the action of Shunt?
Q.8.
Why should an Ammeter have a low resistance and a high current density?
Q.9.
Increasing the current sensitivity of a Galvano meter may not necessarily increase it
voltage sensitivity. Justify this statement?
13. Q.10. Note revise all work done for Term 1 examination.
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14. CLASS XII D
15. Sub: Hm- Sc
16. HOLIDAY’S ASSIGNMENT
VERY SHORT ANSWER QUESTION: (1 Marks)
Q1: Why do we eat more in winter?
Q2: Why are roots & tubers placed in a separate food groups?
Q3: Why should we use flour with bran?
Q4: Give an eg. of the adverse affect of the media on the selection of foods?
Q5: What is meal planning?
Q6: How can time, energy & money be saved by the meal planning?
Q7: How does season affect meal planning?
Q8: Blending of different flavours enhances taste of food. Give eg..
Q9: What is the best food for infants?
Q10: “Colostrum is particularly beneficial for infants”. Explain the statement.
Q11: Which supplementary milk can be given to the infant as a substitute for mother’s milk?
Q12: What is the pre-school age?
Q13: Why does the requirement of energy increases in adolescents?
Q14: What is the importance of iodine in the meals of adolescents?
Q15: What is pregnancy?
Q16: What steps are to be taken to prevent anaemia in pregnancy?
Q17: What do you mean by lactation period?
Q18: Write two advantages to give mother’s milk to the child?
Q19: What do you mean by diet therapy?
Q20:Which food are given in a full liquid diet?
Q21: What is diarrhoea?
Q22: Why should fibrous foods not be given to a diarrhea patient?
Q23: Ravi is suffering from fever. Keeping this in mind suggest two changes in the meal of a
family given:- Potato Vegetables, Lady’s Finger, Bundi Raita, Puri, Banana, Custard.
Q24: What do you understand by constipation?
Q25: How vit. B complex is beneficial during constipation?
Q26: What should be the main source of fats in diabetes?
Q27: What do you mean by jaundice?
Q28: Which test should be done to diagnose diabetes?
Q29: Who is a disease carrier?
47. Q30: What two precaution must you take to ensure that the cooking oil you are buying is not
adulterated?
48. Q31: Enumerate any two conditions by which food is considered adulterated according to
the Prevention of Food Adulteration Act (PFA).
49. Q32: Kesari Dal is used as an adulterant in which food stuff? Give its one ill-effect on health?
50. Q33: State one reason to avoid buying Indian Sweets(Mithai) with silver layer on them.
51. Q34:Give two conditions when Besan is considered unfit for human consumption.
52. SHORT ANSWER TYPE QUESTION (2 Mark)
53. Q1: Why cereals & pulses should be taken together in diet?
54. Q2: ‘Milk is a complete food’. How?
55. Q3: What do you mean by a satiate food?
56. Q4: Meal planning is affected by season & occasion. Elaborate giving two examples.
57. Q5: Tell few mothers two reasons to emphasise, why mother’s milk is best for an infant.
58. Q6: Why is requirement of proteins less in females than males?
59. Q7: What is the effect of malnutrition during pregnancy?
60. Q8: What mineral deficiencies are caused in diarrhea patient & how they can be prevented?
61. Q9: Why fats & what types of fats should not be given to patient of hypertention?
62. Q10: How much liquid should be taken by a patient of constipation?
63. Q11: Discuss the importance of purchasing food from Super Bazars & Cooperative Stores.
64. Q12: Make a food handler aware of the care that should be taken while cooking & serving
food?
65. Q13: Enumerate six ways ,food can be protected from getting contaminated.
66. Q14: Name the adulterant used to contaminate mustard oil. What are its two iii-effect on
health.
67. Q15: How is AGMARK similar to & different from FPO mark?
68. Q16: Name two adulterants commonly present in fats & oils. How would you detect the
presence of these adulterants?
69. Q17: How will you detect the presence of iron fillings & artificial colour in tea leaves?
70. Q18: List two foods that are usually adulterated with metanil yellow. Give its two injurious
effect on health?
71. LONG ANSWER TYPE QUESTION: (4Mark)
72. Q1: “A balanced diet for a person may not be balanced one for the other” Justify the
statement.
73. Q2: How food groups help us in planning a balanced diet?
74. Q3: Why is food of any two families not similar?
75. Q4:”Myths are without any basis”. Justify with eg.
76. Q5: Why should a house wife use time, energy & labour saving devices?
77. Q6: State how availability of food items, money & skills of cooking influence planning of
meals.
78. Q7: Write four factors influencing meal planning of a family comprising of two adults & two
children?
79. Q8: Suggest three changes in the given menu for an old person, give reason these changes:
chapatis, pulao(fried with vegetables), dal fry, boondi raita, onion- tomato salad.
80. Q9: A teenage girl is having milk & potato for her breakfast. Suggest three modification in
the meal to suit her nutritional needs. Give reasons for your choice.
81. Q10: Under which circumstances mother’s milk cannot be given to an infant? Explain.
82. Q11: Why is packed lunch important in school?
83. Q12: Requirement of minerals increases in adolescence. Why?
84. Q13: A family Where the daughter-in-law is pregnant has been served aloo parantha& curd
for breakfast. What modification will you carry out in this meal to suit the nutritional
requirement of pregnant women? Why does she require these additional nutrients?
85. Q14: “Pregnant women should eat for two”. How far is this statement is true?
86. Q15: “In therapeutic nutrition, considering normal diet as the base dietary changes should
be made”. Explain.
87. Q16: Which food are restricted during constipation?
88. Q17:What rules should be followed while cooking, serving & eating food?
89. Q18: List 4 important instruction you will give regarding hygienic handling of food to a
person who has come to help you with food prepration at home.
90. Q19:Enumerate 6 ways by which food canget adulterated during cooking?
91. Q20: Which foods are adulterated by phrohibited poisonous colours? What are its adverse
effects?
92. Q21:Suggest 6 important behaviours you would insist in your cook to ensure your kitchen to
be insect free?
93. Q22: What could be 6 possible unhygienic practices adopted by roadside vendors selling
chat papri?
94. Q23: Write 8 condition under which foods are considered adulterated according to PFA?
95. Q24: What do you understandby standarddised marks?What is the importance of
standardized marks?
96.