HOLIDAY HOMEWORK 2016 (MAY-JUNE)

CLASS XI

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ENGLISH CORE (301)

CLASS XI

ATTEMPT ALL THE QUESTIONS IN THE CLASS WORK NOTE BOOK

Q 1. You are Jasveer Kaur/Jasdeep Singh of C-9, Tilak Nagar. You feel hurt and helpless on

reading the rising number of road accidents leading to death and incapacitation. Write a letter to

the Police Commissioner, Delhi about the problem giving suitable suggestions.

Q.2. You are Samita/Sunit, resident of C-9, Vasant Kunj, Delhi. You find participation of

children in various reality shows on T.V. a form of child exploitation. Write a letter to the editor

of ‘Times Of India’ expressing your concern about it, giving some suggestions to curtail it.

Q. 3. You are Vidya/Vijay, a student of Class XII of Sarvodaya School, Dilshad Colony. You

feel disturbed to read news about increasing cases of Honour killing in northern India. You feel

that such attitude of some rigid elders in the society deprives children of their free will and poses

a hindrance in choosing a life partner and career of their choice. Write an article in about

150– 200 words on the topic- Honour Killing a blot on Modern Society.

Q.4. Your school has planned an excursion to Lonavala near Mumbai during the summer

holidays. Write a notice in not more than 50 words for your school notice board, giving detailed

information and inviting the names of those who are desirous to join. Sign as Naresh/Namita,

Head Boy/Head Girl, D.V. English School, Thane, Mumbai.

Q.5. ” Regular practise of Yoga and Meditation can help in maintaining good health and even in

the prevention of so many ailments. Write a speech in 150-200 words to be delivered in the

morning assembly on the ‘Power of Yoga and Meditation.’

Holiday Home Work

Accountancy

Project

Collect the following supportive documents:

Invoice , Cash Memo , Debit Note , Credit Note , Revenue Stamp , Stamp Paper , Debit

voucher , Credit Voucher , Transfer Voucher , Receipt , Deposit slip of bank , Bank

withdrawal form , Cheque

Revise all the journal entries taught in school

Business Studies

Interview a vegetable or fruit seller in your vicinity and draw a study on

Capital invested by him

From where he gets his supplies from

Daily turnover

Daily profits

His business strengths

His business weaknesses

His business opportunities

His business threats

His future projections

B.St

Project Work should be completed.

Biology

Chapter -13

TRANSPORT IN PLANTS

Q1- What are the substances in plants that need to be transported? How does it occur?

Q2- Give characteristics of diffusion. Mention the factors that affect its rate.

Q3- Explain facilitated diffusion. What are porins?

Q4- Differentiate between uniport, symport and antiport.

Q5- Describe the role played by protein pumps during active transport in plants.

Q6- Mention two characteristic properties of transport proteins.

Q7-a) All solutions have a _______water potential than pure water.

a) Water potential increases when pressure _______than atmospheric pressure in applied to

a solution.

b) The more the solute molecules in a solution, locue will be the______.

c) The water potential of pure water at standard temperature is_______ .

d) Uw = Us +______.

Q8-a) Suggest two experiments to demonstrate Osmosis.

b) Bring out differences between isotonic and hypotonic solutions.

c) How does a flaccid cell differ from turgid cell?

d) Define furgos pressure. How is it important for plants?

Q9- Mention the two factors for imbibitions to occur.

Q10- What is mass or bulk flow in plants? How is it achieved in plants? Mention the two

conditions for achieving bulk flow.

Q11- Differentiate between apoplastic and symplastic movement of water.

Q12-a)Represent diagrammatically the apoplastic and symplastic pathways of water movement

in plant cells.

b) What is casparian strip? How does water movement occur across it?

c) What is mycorrhiza? What is the advantage of such a association in the plants?

Q13-a) What is the contribution of root pressure to plants?

a) Define guttation.

Q14-a) Define Transpiration.

b) What is meant by tensile strength of water in plants?

c) With the help of neat labeled diagram show the water movement in the leaf.

d) Name the factors that influence the rate of transpiration.

e) Mention the benefits of transpiration for a plant.

Q15-a) Why are mineral actively absorbed by the roots?

b) What essential role does the root endodermis play during mineral absorption in plants?

c) Why does transport of ions occur only in one direction in root endodermal cells?

d) What is meant by source and sink in plants, with regard to translocation?

e) Name 4 elements that are easily mobilised in plants.

Q16- Explain why xylem transport is unidirectional and phloem transport bi-directional?

Q17- Which experiment has been used to identify that food is translocated through phloem?

Describe it.

Q18- Why does water move out of the phloem to enter the xylem in the sink?

Q19- Explain pressure flow hypothesis of translocation of sugars in plants.

Q20- Give the diagrammatic representation of mechanism of translocation.

Class – XI

CHAPTER-13

PLANT GROWTH & MOVEMENT

Q.1 Differentiate between Dormancy & Quiescence

Q.2 Discuss the conditions which lead to dormancy in seeds.

Q.3 Name the chemicals which act as germination inhibitors.

Q.4 Give diagrams for germination of seed.

Q.5 Describe the various steps involved in the process of seed germination.

Q.6 ______________region of visible spectrum in most effective for onset of seed

germination.

Q.7 Explain vivipary.

Q.8 Where is ‘Cork cambium’ located?

Q.9 Describe ‘Growth Curve’.

Q.10 Give important characteristics of growth.

Q.11 Explain different phases of growth with the help of a diagram.

Q.12 How does one measure the rate of growth in plants? Describe an instrument used to

measure the increase in ht. of an angiospermic plant.

Q.13 Name the various growth regulators in the plants.

Q.14 Name the natural & synthetic auxins.

Q.15 What do you understand by

i) Auxin processors ii) Free Auxins iii) Anti-auxins iv) Bound Auxins

Q.16 Functions of Auxins?

Q.17 Name the Bioassays for Auxins.

Q.18i) _________ fungi is responsible for foolish seedling disease of rice.

ii) ____________was the first gibberellins to be discovered.

Q.19 Functions of Gibberellins

Q.20 Functions of Cytokinins

Q.21 Name two naturally occurring cytokinins.

Q.22 Suggest bioassays for Gibb & Cyto.

Q.23 Name a gaseous hormone.

Q.24 i) Role of ethylene & ABA in both positive and negative, Justify.

ii) ABA is antagonistic to_______________

Q.25 i) Define photoperiodism, Long day plants (LDP), Short day Plants, intermediate day plants

with e.g.

ii) Name the chemical subs responsible for flowering.

Q.26 Write short notes on

i) Vernalisation ii) Senescence iii) Abscission

Q.27 What do you understand by the spontaneous & induced movements in plants? Illustrate

your answer with suitable diagram.

Q.28 Differentiate between Nastic & Tropic movements.

Class - 11 A &B

(Chemistry)

Holiday Homework

Solve all the questions (Intext, Examples and NCERT Exercises) of Some Basic Concepts of Chemistry

Computer

Multiple Choice Questions

1) When the electrical power is disrupted or cut off, data and programs are lost in

A. ROM

B. hard disk

C. RAM

D. secondary storage

2) Read Only Memory (ROM)

i. Is volatile

ii. Is programmable

iii. Is mounted on the mother board

iv. Contains the bootstrap loader

A. i and iii

B. i, ii and iv

C. ii, iii and iv

D. iii and iv

3) CD-ROM stands for

A. Compactable Read Only Memory

B. Compact Data Read Only Memory

C. Compactable Disk Read Only Memory

D. Compact Disk Read Only Memory

4) ALU is

A. Arithmetic Logic Unit

B. Array Logic Unit

C. Application Logic Unit

D. None of the above

5) MICR stands for

A. Magnetic Ink Character Reader

B. Magnetic Ink Code Reader

C. Magnetic Ink Cases Reader

D. None of the above

6) Which operation is not performed by computer

A. Inputting

B. Processing

C. Controlling

D. Understanding

7) Pick the one that is used for logical operations or comparisons such as less than

equal to or greater than.

A. Arithmetic and Logic Unit

B. Control Unit

C. Both of above

D. None of the above

8) Which of the following is a secondary memory device?

A. Keyboard

B. Disk

C. ALU

D. All of the above

9) The difference between RAM and Secondary Storage is that RAM is … and

Secondary Storage is …

A. Temporary, permanent

B. Permanent, temporary

C. Slow, fast

D. All of above

1) I saved my document on the hard drive 5 minutes ago. I have continued to work. Where is the

latest copy of my work?

2) Why is it necessary to use ROM in a computer?

3) What is the function of a bus?

4) Explain the block diagram of a computer.

5) Pair the following equivalent units

10GB, 1GB, 1000MB, 10MB, 104KB, 107KB

6) Suppose your uncle has to buy a computer and he has asked you for help. What all

components and specifications would you suggest him. Make a table similar to the

one given below (three entries are done to help you)

RAM 4GB

Hard Disk 260 GB

Monitor 17"

Multiple Choice Questions

Spreadsheet is general purpose application software that facilitates creation of worksheets that

stores text and numerical data in tabular form. Performing basic statistical analysis including

graphs is the main utility of this software.

Debugging is the process of removing all errors from a program.

An interpreter converts as well as executes a high level language program into machine language

line by line.

A compiler is a language processor which converts (or translates) the entire program written in

high level language into machine language in one go.

An Integrated Development Environment (IDE) is a platform or an application program that

consists of all required software developing tools required for developing an application at one

place. The various tools are arranged as separate windows integrated into one big environment.

1. Interpreter converts a HLL program into machine language by converting and executing

:

a) In one go

b) line by line

c) Group of Five lines

d) None of the above

2. Which of the following Operating System is suitable for handling more than one

user at one time?

a) Multiprocessing OS

b) Multiuser OS

c) Multiprogram OS

d) Multiprogramming OS

3. Calculator is a

a) Package

b) Utility Software

c) Customized software

d) Developer Tool

4. A bit stands for

a) Boolean Digit

b) Binary Digit

c) Binary Decimal

d) Byte Digit

5. Which of the following is not an application software:

a) Word Processor

b) Anti Virus Program

c) Operating System

d) Railway Reservation System

6. Which of the following is not an utility software:

a) Text Editor

b) Anti Virus Program

c) Compression software

d) Railway Reservation System

7. Which of the following is not a component of Open Office:

a) Word

b) Impress

c) Calc

d) Writer

8. A program written in high level language is known as:

a) Source Program

b) Main Program

c) Object Program

d) Image Program

Exercises

1. What do you mean by a bit and a byte?

2. Define the term Software.

3. Explain the relationship between hardware and software with the help of a suitable example.

4. What are the main types of software? Explain with appropriate examples.

5. Define the term System Software.

6. What do you mean by BIOS?

7. Write down the four major functions of an operating system.

8. Differentiate between the following :

a) Single user & Multiuser OS

b) Compiler & Interpreter

9. Write short note :

a) Utility Software b) Device Driver

10. Give any four examples, where you use word processing software.

11. What do you mean by presentation software?

12. What are the uses of Payroll Management System?

13. Explain different types of language processors.

14. Explain the different types of Operating System.

15. Define the term Application software.

16. Explain the term Integrated Development Environment.

Economics Prepare a project by doing real research through questionnaire and present it using statistical tools Solve numericals based on following chapters Measure of central tendency Mean, Median,Mode

Holiday Homework

Class XI

Mathematics

1. Solve the equation for x and write its general solution :

(i) sec x cos 5x + 1 = 0

(ii) sinθ + sin 3θ + sin 5θ = 0

2. Prove by Induction for all n € N , ( i) 1 + 1 + 1 +…….+ 1 = n

1.4 4.7 7.10 (3n – 2)(3n +1) 3n + 1 ( n ≥ 2)

(ii) 1 + 1 + 1 + ….. + 1 = n

1.2 2.3 3.4 n(n+1) n+1

(iii) ( 7 n - 2 n ) is divisible by 5 .

(iv) 1 - 1 1 - 1 ………………. 1 - 1 = n + 1

22

32

n2

2n ( n≥2 )

(v) ( 3 3n + 2

- 8n – 9 ) is divisible by 64 .

3. If P (n ) : “ 2 n < n│ , n € N, then P (n) is true for all n ≥ ……………..

4. If P(n) : 49n

+ 16n + k is divisible by 64 for n € N is true, then find the least Integral

value of ‘k ‘ .

5. Prove by Induction for all n € N : ( 3 3n + 2

- 8n – 9 ) is divisible by 64 .

Class - 11 A &B(PHYSICS)

Holiday Homework

Solve all the questions (Intext, Examples and NCERT Exercises) of Units and Measurements.

Solve questions on Differential and Integral Calculus

Pol. Science

A brief research on History of Indian Constitution .