Saturday, January 20, 2018

CBSE PORTAL : (Download) CBSE Class-12 Sample Paper And Marking Scheme 2017-18 : Biology

CBSE PORTAL : (Download) CBSE Class-12 Sample Paper And Marking Scheme 2017-18 : Biology

Link to CBSE PORTAL : CBSE, ICSE, NIOS, JEE-MAIN, AIPMT Students Community

(Download) CBSE Class-12 Sample Paper And Marking Scheme 2017-18 : Biology

Posted: 19 Jan 2018 10:22 PM PST

(Download) CBSE Class-12 Sample Paper And Marking Scheme 2017-18 : Biology

General Instructions:
1. There are a total of 26 questions and five sections in the question paper. All questions are compulsory.
2. Section A contains question number 1 to 5, Very Short Answer type questions of one mark each.
3. Section B contains question number 6 to 10, Short Answer type I questions of two marks each.
4. Section C contains question number 11 to 22, Short Answer type II questions of three marks each.
5. Section D contains question number 23, Value Based Question of four marks.
6. Section E contains question number 24 to 26, Long Answer type questions of five marks each.
7. There is no overall choice in the question paper, however, an internal choice is provided in one question of two marks, one question of three marks and all three questions of five marks. An examinee is to attempt any one of the questions out of
the two given in the question paper with the same question number.

Section – A

1. A tissue, of a tobacco plant, infected with TMV was used to obtain a new plant. Identify the technique used and reason out the possibility of obtaining a new healthy plant. 1
2. State a method of cellular defense which works in all eukaryotic organisms 1
3. In case of an infertile couple, the male partner can inseminate normally but the mobility of sperms is below 40 percent. Which kind of ART is suitable in this situation to form an embryo in the laboratory conditions, without involving a donor? 1
4. Write the two components of the first artificial recombinant DNA molecule constructed by Cohen and Boyer.1
5. A cross was carried out between two pea plants showing the contrasting traits of height of the plant. The result of the cross showed 50% of parental characters. Name the type of cross. 1

Section B

6. The alarming population growth is leading to scarcity of basic requirements. Suggest with reasons, any two population control measures other than contraception to address the situation.

7. During a cytological study conducted on the chromosomes of the insects, it was observed that only 50% of the sperms had a specific structure after spermatogenesis. Name the structure and write its significance in sex determination of insects.2
8. To reduce the percentage of population suffering from hunger and malnutrition, microbes are grown on a large scale to act as food supplements. Mention any two microbes used as food supplement and suggest their role.
OR
Success rate of artificial insemination in cattle is fairly low. Identify any other technique to improve the successful production of hybrids. State two advantages of this technique. 2
9. (a) A patient who had an organ transplant was given cyclosporin– A. Mention the microbial source and state the reason for administration of this bioactive molecule.
(b) Bottled fruit juices bought from the market are clearer as compared to those made at home. Give reason. 2
10. Evaluate the effect of loss of biodiversity in a region. Mention any four such effects. 2

Section C

11. Draw the diagram of microsporangium of an Angiosperm and label any four parts State the function of its innermost wall layer. 3
12. Give reason : -
(a) A liverwort plant is unable to complete its life cycle in a dry environment.
(b) Number of male gametes produced is much more than the female gametes produced.
(c) Organisms exhibiting external fertilization show great synchrony between the sexes and release a large number of gametes into surrounding medium. 3
13. (a) Name the different gases contained in the flask used as an experimental setup by S.L. Miller.
(b) On the basis of composition of gases in this experiment, what was the condition in the flask?
(c) Write the conclusion drawn from this experiment. 3
14. When a snapdragon plant bearing pink colour flower was selfed, it was found that, 69 plants were having red coloured flowers. What would be the number of plants bearing pink flower and white flower. Show with the help of Punnett square. Identity the principle of inheritance involved in this experiment

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(Download) CBSE Class-10 Sample Paper And Marking Scheme 2017-18 : Elements of Business

Posted: 19 Jan 2018 10:21 PM PST

(Download) CBSE Class-10 Sample Paper And Marking Scheme 2017-18 :

Elements of Business

Q. No.

Question

Marks

1

Which  of the following is not a feature of personal selling:

a) develop personal relationship with customer b) personal form of communication

c) flexible tool of promotion

d) communicated through some media

1

2

                         are considered as a cushion of security.

a) Equity        b) Debentures     c) Retained Earnings     d) Trade Credit

1

3

Exchange of information between sender and receiver is known as:

a) Directing   b) Controlling    c) Organising    d) Communication

1

4

Centralised control in MNC’s implies control exercised by

a) Headquarters    b) Government    c) Branches  d) Subsidiaries

1

5

Document that is sent by the seller to a potential customer offering to sell goods

or services at a certain price is known as:

a) Debit note     b) Credit note    c) Quotation       d) Accounts Payable

1

6

Debentures are                              type of capital of a company.

a) Fluctuating      b) borrowed     c)Permanent     d) Fixed

1

7

Invoice is prepared by                                          in case of sale of goods

a)   Buyer     b) Seller   c) Bank      d) Lender

1

8

Delhi Cloth Mills (DCM) Store is an example of which of the following:

a) Mail Order House          b) Multiple Shops c) Departmental Stores       d) Super Markets

1

9

The process of communication is incomplete without                   

a) Rumours     b)Feedback    c) Encoding    d) Decoding

1

10

Which of the following is a type of Non- store retailing

a)   Consumer Cooperative Store         b) Selling through internet c)   Franchisee                                       d) Chain stores

1

11

Which of the following is an impersonal form of communication?

a) Advertising       b) Marketing       c) Personal Selling      d) Promotion

1

12

Reliance Jio distributed free sim cards for enhancing its customer base. Which

promotion technique did the company adopt?

a) Contests       b) Sampling         c) Lucky draw       d) Rebate

1

13

                                           is not a feature of a departmental store.

a)   Centralised location          b) Wider Range

c)   Central purchases             d)  Specialised in one line product

1

14

                        is an association of persons formed for carrying out business

activities and has a legal status independent of its members is known as:

a) Joint Hindu  Family                              b) Partnership c) Consumer Cooperative society             d) Company

1

15

Equity shareholders are called

(a) Owners of the company       (b) Partners of the company

(c) Debtors of the company       (d) Creditors of the company

1

16

Signature of a company is known as :

a) Trademark of the company    b) Logo of the company

c) common seal                          d)  signature of the director

1

17

Equity share capital is a permanent source of finance. Explain

3

18

State any three limitations of Mail Order Business.

3

19

Briefly explain Radio as a media of advertising.

3

20

‘Multinational Corporation creates employment in the host country’. Do you

agree with the given statement? Give valid reasons in support of your answer.

3

21

Define Advertising. State any three difference between Advertising and

Personal selling.

4

22

Explain the preferential rights enjoyed by Preference Shareholders over Equity

Shareholders.

4

23

Discuss how a buyer can exercise the methods of ‘purchase by sample’ and

‘purchase by inspection’.

4

24

Discuss the role of sender and receiver in the communication process under a

business organisation.

4

25

‘No business organisation can imagine communication activities without

telephone in the modern times’. Elaborate the given statement in the light of the present day communication methodologies.

4

26

State the steps involved in selling procedure.

4

27

Automatic Vending Machine is a new and innovative way of direct retailing.

In the light of given statement state the advantages of Automatic vending machine.

4

28

State any four features of a multinational corporation.

4

29

Distinguish between public and private company on the basis of the following:

a.   Number of members   b. Prospectus           c. Number of directors d.   Transfer of shares       e. Minimum paid up capital

5

30

Explain any two sources of owner’s fund that can be used for raising finance by

a business organisation.

5

31

‘Video Conferencing has been growing rapidly as a method of communication

for the present day business organisations’. Discuss the advantages of the method in the light of the given statement.

5

32

Discuss briefly the following :

a) Debit Note b) Credit Note

5

33

Write short notes on :-

a.   Email b.   Letter

5

34

Explain the following two methods of purchase of goods:-

a) Instalment Method             b) Hire Purchase Method

5

35

Give any five point of distinction between Departmental and Chain Stores.

5

36

Discuss briefly the following techniques of sales promotion, with suitable

examples:

a) Rebate     b) Discount       c) Refund   d) Contest    e) Lucky Draw

5


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Friday, January 19, 2018

CBSE PORTAL : (Download) CBSE Class-12 Sample Paper And Marking Scheme 2017-18 : Agriculture

CBSE PORTAL : (Download) CBSE Class-12 Sample Paper And Marking Scheme 2017-18 : Agriculture

Link to CBSE PORTAL : CBSE, ICSE, NIOS, JEE-MAIN, AIPMT Students Community

(Download) CBSE Class-12 Sample Paper And Marking Scheme 2017-18 : Agriculture

Posted: 18 Jan 2018 09:34 PM PST

(Download) CBSE Class-12 Sample Paper And Marking Scheme 2017-18 : Agriculture

General instructions: 1) All questions are compulsory.

2) Marks of each question is indicated against it.

 

Q. No.

Question

Marks

1

What is luxury consumption?

1

2

Traditionally potato chips are stored after drying. Justify the reason behind removal of moisture during its preparation.

1

3

What is vermicomposting?

1

4

Neem is a very good bio pesticide. The insecticidal property of neem is due to

presence of which active principle ingredient?

 

1

5

Write down the name of two species of honey bees which can be used in

commercial bee keeping.

 

1

6

What is kitchen gardening?

 

1

7

Where is National Centre for Mushroom located in India?

 

1

8

When was Plant Nursery Registration Act was enforced in India?

 

1

9

How presence of a lawn around the place of living or work is beneficial to the

people?

 

1

10

How can organic farming improve soil productivity?

Or

Write two objectives of National Project on Organic Farming(NPOF).

 

 

2

11

Discuss the advantages of using sulfur dioxide as preservative.

2

12

Define food additive. How is it different from ‘food preservative’.

2

13

Define Field Capacity.

2

14

Enlist four value added products that can be made from cereals.

2

15

What are the principles of food preservation?

3

16

Gulkhand  and  rose  water  are  two  important  processed  flower  products.

Describe the process of their preparation.

3

17

Explain the process of preparation of mango pickle.

3

18

Various  methods  are  employed  to  dry  flowers  and  foliage.  Describe  any  three

methods

 

3

19

Justify  the  reason  behind  pre  cooling  in  harvested  fruits  and  vegetables

before their storage?

 

3

20

Mention the common methods of packaging adopted in food preservation.

3

21

Describe drip irrigation system.

Or

Write advantages and limitation of sprinkler irrigation system.

 

3

22

Explain the functions and deficiency symptoms of nitrogen and phosphorus.

2.5+2.5=5

23

Draw the layout plan for a kitchen garden with an area of 40 m2. What are

the advantages of kitchen garden?

Or

What are the important Government Schemes for the promotion of organic farming in our country?

 

2+2=5

24

Define flush in respect of mushroom cultivation. Write the names of most

commonly cultivated mushrooms in India.

2+2 = 5

25

Explain the concept and components of Integrated Nutrient Management?

Or

Explain the constraints in bio fertilizer technology.

5

26

Enumerate the importance of plant nurseries in India.

5

27

Describe various methods of  sowing/transplanting of grasses during lawn

making.

Or

Describe the nutritional status of mushroom.

5

 

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(Download) CBSE Class-10 Sample Paper And Marking Scheme 2017-18 : Elements of Book Keeping and Accountancy

Posted: 18 Jan 2018 09:33 PM PST

(Download) CBSE Class-10 Sample Paper And Marking Scheme 2017-18 :

Elements of Book Keeping and Accountancy

Time allowed: 03 Hours

Maximum Marks: 80

1. Capital Expenditure……………………………. 1
(a) maintains the earning capacity.
(b) helps in running day to day business.
(c) increases the earning capacity of business.
(d) benefits in only one accounting period.

2. Decline in the value of fixed intangible assets is called……….. 1
(a) Amortisation
(b) Depletion
(c) Depreciation
(d) Obsolescence

3. Amortisation is writing off………………. 1
(a) Patents and Copyrights
(b) Patents and Machinery
(c) Patents and Stock
(d) Copyrights and Furniture

4. Bank Reconciliation Statement is prepared by the ……….. 1
(a) Creditor
(b) Businessman
(c) Bank
(d) Debtor

5. Debit balance of Cash Book means…………….. 1
(a) Favourable balance
(b) Unfavourable balance
(c) Overdraft
(d) Negative balance

6. Drawer in a bill of exchange is a person…………… 1
(a) who draws a bill
(b) who accepts a bill
(c) who makes the payment
(d) who receives the payment

7. Balance Sheet shows…………… 1
(a) Profit or Loss
(b) Financial Position
(c) Errors of Accounts
(d) Total Debtors

8. Trading and Profit & Loss Account is prepared……………….. 1
(a) at the end of the calendar year
(b) at the beginning of the accounting year
(c) on every Diwali
(d) at the end of the accounting year

9. Which of the following is correct about Single Entry System: 1
(a) Simple Method
(b) Difficult Method
(c) Expensive Method
(d) Both difficult and expensive method

10. Single Entry System is a…………….. 1
(a) Complete System
(b) Incomplete System
(c) Hybrid System
(d) Difficult System

11. What is meant by a bill of exchange? 2
12. R & Company purchased a machine for Rs. 80,000 and spends Rs. 20,000 for its installation. For the first year, the firm charges depreciation Rs. 10,000 on it. Record the necessary Journal entries. 2
13. What is meant by Bank Reconciliation Statement? 2
14. What does the credit balance of Cash Book imply? 2
15. Calculate Cost of Goods sold from the following information: 2
                                                         Rs.
 Sales                                           1,25,000
 Purchases                                   75,000
 Wages                                         8,000
 Gross Profit                                 42,000

16. State any two limitations of incomplete records. 2
17. Give any three examples of Revenue Expenditure. 3
18. Explain the ‘Fixed Installment Method’ of charging depreciation. 3
19. What is meant by Deferred Revenue Expenditure? Give one example. 3
20. Give any two differences between ‘Trading Account’ and ‘Profit & Loss Account’. 3
21. Calculate Closing Capital:

                                                     Rs.
 Opening Capital                    3,40,000
 Profit for the year                 2,40,000
 Drawings                               1,40,000
 During the year proprietor sold ornaments of his wife for Rs. 40,000 and invested the same in the business. 3

22. Give any three differences between ‘Statement of Affairs’ and ‘Balance Sheet’. 3
23. Dutta & Sons acquired a machine for Rs. 90,000 on October 1, 2014. Rs. 10,000 was spent on its installation. The firm charges depreciation @ 10 % on original cost every year. Calculate the amount of depreciation to be charged every year and prepare Machine Account for the first three years. The firm closes its books on March 31 every year. 4
24. State any four causes of difference of bank balance as shown by Cash Book and Pass Book. 4
25. State any four uses of incomplete records to businessmen.  

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