JAIPUR NATIONAL UNIVERSITY, JAIPUR School of Distance Education & Learning Internal Assignment No. 1 Bachelor of Science (B. Sc)

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1 Bachelor of Science (B. Sc) Paper Code: BO-301 Paper Title: Taxonomy and Embryology of Angiosperms Last date of submission: Max. Marks: 30 Question paper comprises of two sections. Questions from Section A are compulsory, Attempt two questions from Section B. SECTION-A (Word limit words) (1x10=10marks) i. What is ICBN? Write down its principles. ii. Write down the components of systematics of flowering plants. iii. Write down any five economically important plants and their parts to be used. iv. Differentiate Monoctyledoms and dicotyledons. v. Write a note on double fertilization. vi. Name few important Indian Herbaria and Botanical Gardens vii. What do you understand by Phylogenetic classification? Explain. viii. Write in brief about development of Embryo. ix. Draw a well labeled diagram of Ovule. x. Describe function of endosperm. SECTION-B Word limit ( words) (4x5=20 Marks) Q.2 Write down a detailed account on Bentham and Hooker system of Plant s classification. Q.3 Write down a note on important Indian Herbaria and botanical gardens. Q.4 Write ldown the economic importance of following plants families: a. Leguminosae b. Solanaceae Q5. Define Nomenclature, Identification, and Classification and briefly describe Cronquist s (1988) system of classification with merits and demerits. Q6. Write in brief about diagnostic features of family Leguminosae

2 Bachelor of Science (B. Sc) Paper Code: BO-302 Paper Title: MOLUCULAR BIOLOGY & TECHNOLOGY Last date of submission: Max. Marks: 30 Question paper comprises of two sections. Questions from Section A are compulsory, Attempt two questions from Section B. SECTION-A (Word limit words) (1x10=10marks) i. What is genetic code? Discuss lthe characteristics of genetic code. ii. Give three structural features of B form of DNA double helix. iii. What are Riboswitches? iv. What is IPR? Why is it necessary? v. What are Point Mutation? Write down their molecular nature. vi. What are Okazaki Fragments? Explain their significance in replication. vii. Write four applications of tinue culture in agriculture. viii. Differentiate between prokaryotic and Eukaryotic transcription. ix. Write note on nucleosome model of DNA pakaging in Eukaryotes. x. Give one example and explain storage polysaccride and structural polysaccrides SECTION-B Word limit ( words) (4x5=20 Marks) Q.2 What is semi conservative replication. Briefly describe steps of replication in prokaryotes. Q.3 Give brief account on DNA repair system. Q.4 Write brief account on RNA polymerans in prokaryotes. Briefly explain mechanism of initiation of transcription in prokaryotes.

3 Q.5 Write note on General technique of tissue culture and its application. Q.6 By means of a diagram briefly describe protein synthesis in prokaryotes.

4 School of Distance Education and Learning Bachelor of Science (B.Sc.) Paper Code: BO 303 PLANT ECOLOGY ANS ECONOMIC BOTANY Last date of submission Max Marks:30 Note: Question no.1 is of short answer type and it is compulsory for all the students. It carries 1 mark (Word limit words) Q1. Answer all the questions i. Describe the biotic factors which influences the life of plant. ii. Give a graphical presentation of serve. iii. Write down the characteristics of Halophytes. iv. Explain the causes of soil erosion. v. What are the factors affecting populatgion growth. vi. What are edaphic factors? vii. What is biotic potential? viii. What is global warming? ix. What is ecological succession? x. What are ecological pyramids? Note: Answer any four questions. Each question carries 5 marks.(word limit 500 words) Q.2 Explain the different stages of Xerarch. Q.3 Enumerate the external and internal adaptations met within hydrophytes. Q.4 Discuss the sources of water pollution. Q.5 Explain the structure and function of ecosystem. Q.6Describe in detail the biogeochemical cycling of Nitrogen.

5 School of Distance Education and Learning Internal Assignment No. 2 Bachelor of Science (B.Sc.) Paper Code: BO 303 PLANT ECOLOGY ANS ECONOMIC BOTANY Last date of submission Max Marks:15 Note: Question no.1 is of short answer type and it is compulsory for all the students. It carries 5 marks. (Word limit words) Q1. Answer all the questions xi. What are edaphic factors? xii. What is biotic potential? xiii. What is global warming? xiv. What is ecological succession? xv. What are ecological pyramids? Note: Answer any two questions. Each question carries 5 marks.(word limit 500 words) Q2 Describe in detail the biogeochemical cycling of Nitrogen. Q3 Describe the various tropical rain forest adaptations. Q4 Describe the various economically important aromatic plants and their uses.

6 Paper Code: CH Paper Title: Inorganic Chemistry Bachelor of Science (B. Sc) Last date of submission: Max. Marks: 30 Note: Question No. 1 is of short answer type and is compulsory for all the students. It carries 1 Mark (Word limits ) Q. 1. Answer all the questions: 1) Give limitations of VBT? 2) Explain 18 Electron rule. 3) Give the styx code of B 4 H 10 and which type of bond present in it? 4) What is Radioactive Pollution? 5) Give the Comparison between Electrolytic and Electrochemical cells. 6) Give the spectrochemical series. 7) Give the structure of Hemoglobin. 8) What types of bonds in STYX? 9) What is effective Atomic number (EAN)? 10) Derive the structure of m3 (co) 12 type. Note: Answer any four questions. Each question carries 5 marks (Word limits 500) Q.2 Explain the Biological Role of ca +2 10n. Q.3 Which type of bonds present in higher boranes? Give the structure of B 6 H 10 with STYX code. Q.4 What is phospharemes? Give the Structure of P 4N 4 cl 8. Q.5 Give the structure and Nature of bonding in the mononuclear carbonyls. Q.6 Explain pearson's HSAB concept.

7 Bachelor of Science (B. Sc) Paper Code: Paper Title: CH-302 ORGANIC CHEMISTRY Max. Marks: 30 Note: Question No. 1 is of short answer type and is compulsory for all the students. It carries 1 Mark (Word limits ) Q. 1. Answer all the questions: (i) (ii) (iii) (iv) (v) vi) vii) viii) ix) Write a note on Reduction of Pyridine. What is Copolymerization? What is Geometry of the Peptide Linkage, Write the Keto-enol tautomerism of ethyl acetoacetate. What is Condensation Polymer? What is Configurational isomerism? How one will estimate nitregen? Show via reaction reduction of pyridine. Write structure of pyrrole, furan & thiophene. x) Differentiate between lactose and scherose. Note: Answer any four questions. Each question carries 5 marks (Word limits 500) Q.2 Give a detailed account of the Organo Lithium compounds, properties and structures? Q.3 Derive and explain Reactions of Cellulose. Q.4 Describe Methods of Preparation of Amino Acids. Q.5 Give the reaction of pyrrole. Q.6 Write detailed classification of amino acids.

8 Bachelor of Science (B. Sc) Paper Code: Paper Title: CH-303 PHYSICAL CHEMISTRY Max. Marks: 30 Note: Question No. 1 is of short answer type and is compulsory for all the students. It carries 1 Mark (Word limits ) Q. 1. Answer all the questions: (i) (ii) (iii) (iv) (v) vi) vii) viii) ix) Write a note on Hamiltonian Operator. What is isotope effect? What is Grothus Drapper law,? Write the method of expressing concentrations of solutions. What is polarizability? Write equation for Hamiltonia n operator. What is degrees of freedom? Write schrodinger equation and its applications. Give examples of hybrid orbitals sp 2, sp 3 with structure. x) Write function of rigid rotor. Note: Answer any four questions. Each question carries 5 marks (Word limits 500) Q.2 Give a detailed account of the Laws of photochemistry? Q.3 Derive and explain B.E.T equation. Q.4 Describe Biochemical oscillations. Q.5 Deduce statement of Born oppenheimer approximation. Q.6 + Constrect M'O by LCAO of n 2 ion.

9 Bacheler of Science (B.Sc) Paper Code: ZO Paper Title: STRUCTURE AND FUNCTIONS OF VERTEBRATES Last Date of submission: Max. Marks: 30 Section-A (Word limits ) Each question carry 1 Mark i. Write salient features of Balanoglossus. ii. With the help of suitable diagram describe the external features of Petromyzon. iii. Describe the lateral line system in scoliodon. iv. Describe Neoteny in Urodelo. v. Write short note on Egg laying mammals. vi. Draw and label diagrams only to show perching mechanism in birds. vii. Differentiate lbetween the scales of poisonous and nonpoisonous snakes with the help of diagram. viii Write similarities and differences between lower Chordates and higher Chordates. ix Explain the affinities of Amphioxus. Add a note on its present systematic position. x. Write short lnote on Ruminant Stomach.. Section-B (Word limits 500) Answer any 4 questions 4 x 5 = 20 marks Q.2 Write an essay on modifications of aortic arches in vestebrates. Q.3 Give a brief classification of mammals stating important characters and examples of each order. Q.4 Descrfibe the vertebral column of varanus. Q.5 Describe the structure of gill and the mode of respiration in scoliodon. Q.6 Describe the structural and anatomical features which adapt birds to aerial mode of life.

10 Bachelor of Science (B. Sc) Paper Code:ZO-302 Paper Title: Ecology & Environmental Biology Last date of submission: Max. Marks: 30 Question paper comprises of two sections. Questions from Section A are compulsory, Attempt two questions from Section B. SECTION-A (Word limit words) (1x10=10marks) Q1. i. Define the term Autoecology and synecology. ii. Write some important properties of water. iii.what is metamorphosis? Explain iv.describe Leibig s law of Minimum v. Classify forest in India with example. vi. Define the term Bicoenosis? vii. Classify the living organism on the basis of thermal adaptation viii. Describe any one national park conserving tigers. ix. What are Hazardous wastes? Explain with examples. x. Name various sources of water pollution. Section B (4x5=20 Marks) Q2. Write a short note on thermal stratification. Q3. Briefly describe Nitrogen cycle with well labeled diagram.

11 Q4. What are different Intra specific and Interspecific associations? Expalin with examples Q5. Write a short note on ecological succession and community evolution. Q6. Describe in brief various types of renewable and non-renewable resources.

12 School of Distance Education and Learning Bachelor of Science (B.Sc.) Paper Code: ZO 303 APPLIED ZOOLOGY Last date of submission Max Marks:30 Note: Question no.1 is of short answer type and it is compulsory for all the students. It carries 10 marks. (Word limit words) Q1. Answer all the questions i. What are different types of fish ponds? ii. Name any two edible species of prawn and shell fish. iii. What is gender selection? iv. What is artificial insemination? v. What is pisciculture? Note: Answer any two questions. Each question carries 10 marks.(word limit 500 words) Q2 Describe in detail insect pest management of stored grain. Give any two insect pests and their control. Q3 Describe in detail the technique of milk production and its pasteurization. Q4 Describe the structure of biogas plant and the mechanism of biogas production. Also discuss the various types of biogas plants.