CBSE Academic Class XII Agriculture Theory Sample Question Paper

Name of the Board : CBSE Academic
Class : XII STD
Subject : Agriculture (Theory)

Website : http://cbseacademic.in/SQP_CLASSXII_2015_16.html
Download Sample Question Paper : https://www.pdfquestion.in/uploads/8008AGRI.pdf
Download Marking Scheme : https://www.pdfquestion.in/uploads/8008MSAGRI.pdf

CBSE Agriculture Theory Sample Question Paper II

Time allowed: 3 Hrs.
Maximum Marks : 70

Related : CBSE Academic Class XII Accountancy Sample Question Paper 2016 : www.pdfquestion.in/8004.html

General Instructions

(i) All questions are compulsory.
(ii) Marks of each question is indicated against it.

Model Questions

Q 1) Define soil fertility. (1 mark)
Q 2) Post-harvest technology is useful. Justify it giving a reason. (1 mark)
Q 3) Define spawn? (1 mark)
Q 4) Write one benefit of landscaping in urban area? (1 mark)
Q 5) What is apiculture? (1 mark)
Q 6) Explain the importance of organic farming in the present scenario. (2 marks)
Q 7) What are blue green algae? In which crop, blue green algae are recommended as a biofertilizer? (2 marks)
Q 8) Explain the reasons behind the use of thermal processing during food processing and preservation? (2 marks)
Q 9) Indian food industry is growing annually at the rate of 8-9%. What in your opinion are the factors hampering the growth of food processing in India as compared to other countries? (2 marks)
Q 10) One of the problems with use of chemical pesticides is that it affects non-target species also. How one can solve this problem? (2 marks)

Q 11) (a) What is Insect Pest Management?
(b) How cultural methods are applied to control pest?
(c) Illustrate the method of biological pest control with two examples? (1+2+2=5 marks)

Q 12) Summarize the function and deficiency symptoms of calcium and magnesium? (5 marks)

Q 13) (a) Classify the various categories of food processing units according to Food Product Order (1955) of Government of India?
(b) Explain the main features of cold chain scheme of Government of India? (3+2=5 marks)

Q 14) Value addition to food products has assumed vital importance in our country due to diversity in socio-economic conditions, industrial growth, urbanization and globalization.
(a) List the various value additions from wheat.
(b) Describe the steps in the production of wheat flakes? (2+3=5 marks)

Q 15) (a) Develop a plan to set up a nursery with an area of 0.2 ha?
(b) Identify the major problem associated with the packing, handling and marketing of plant sapling? (3+2=5 marks)

Q 16) (a) What do you understand by the terms Field Capacity and Permanent Wilting Point?
(b) Explain irrigation scheduling using critical crop growth stages?
(c) Describe drip irrigation system with suitable diagram? (2.5+2.5+5 =10 marks)

Q 17) (a) What is fruit jelly?
(b) Discuss in detail about the preparation of jelly from Guava including the raw material, ingredients and machinery required?
(c) Give a FPO (1955) specification for fruit jelly? (1+6+3=10 marks)

Q 18) How can you plan button mushroom production taking into account the following factors?
a) Agro-climatic requirement
b) Varieties/ strains
c) Casing
d) Harvesting and yield
e) Important pest and diseases (2+2+2+2+2=10 marks)

Bio Technology :

Section-A :
Q1. A scientist wants to protect a part of a DNA from attack by restriction enzymes. Design first step of his experiment? (1)
Q2. Presence of selectable marker is an essential feature of an ideal cloning vehicle. Give reason. (1)
Q3. Expand and define PER. (1)

Q4. Given below is a list of the first 8 residues of the ß-helix in myoglobin from different organisms. Based on this information, identify the amino acids which are most
(a) conserved (b) variable

Q5. In assessing the effect of growth factors on animal cell cultures, a particular phase of growth is more suitable. Name this phase giving reason for the same. (1)
Q6. CHO animal cell line is used to express r-HuEPO. Give reason. (1)

Section-B :
Q7. pUC19 and a linear DNA (both of same size) have two sites for the same restriction – endonuclease. When cleaved and separated on agarose gel electrophoresis, how many bands will be visualized in each case and why?
Q8. Chymotrypsin catalyses the hydrolysis of proteins containing bulky, aromatic, hydrophobic amino acids.Comment. (2)
Q9. Interpret possible use of nick translation in detecting chromosomal translocations. Draw a suitable diagram. (½ x4)

Q10. C.elegans is a eukaryotic organism with a genome of 97 Mb and about 20,000 genes. Why organizational features of this genome are unusual when compared to the genomes of other eukaryotes, such as yeast and Drosophila?
OR
Blast helps in finding the homology in biological sequence alignment. Give any two reasons for this homology.

Q11. Highlight graphically the differences between culturing microbes in the school laboratory and a bioreactor which allow cells to grow in a continuous culture system. (1+1)
Q12. State any two advantages of using Pichia pastoris as a eukaryotic expression host. (1+1)
Q13. Execute the engineered biosynthetic pathway which leads to the production of valuable secondary metabolites for their over-production. (2)
Q14. Enlist the advantages and limitations of animal cell culture (two each). (½ x4)