JAIPUR NATIONAL UNIVERSITY, JAIPUR School of Distance Education & Learning Internal Assignment No. 1

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1 Paper Code: ZO- 103 Paper Title: GAMETES AND DEVELOPMENTAL BIOLOGY Define the following terms with appropriate specifications and examples. i. Zygote ii. Cleavage iii. Blastula iv. Gastrula v. Tatipotent and Pleuripotent vi.internet external fertilization vii. Oviparus and Viviparus viii.deploid fertilization ix.asexual reproduction x.define clone. Explain whole procession short. Q.2 Discuss the history of embryology and write its type in brief. Q.3 Explain the development stages in chick embryo upto 96 hrs. Q.4 Define regeneration? Explain the process with suitable examples? Q.5 Explain the cloning process with suitable diagrammatic representation. Q.6 Discuss cell differentiation with suitable examples?

2 Paper Code: ZO Paper Title: Cell Biology & Genetics 1) Write the principle of chromatography. 2) What cell theory status? 3) What are prious? 4) Give four major differences between puokaryotic and eukaryotic cells. 5) What do you mean by linkage? (6) Give the differences between normal cell and cancerous cell. (7) What do you mean by giant chromosome. (8) Give the formula for calculating Interference. (9)Define Pleiotropism (10)Write the functions of Ribosomes. Q.2 Explain the characteristics of Plasma memberance and disscuss diffenent types of memberane transport. Q.3 Give a brief account on life cycle of Bacteuiophage. Q.4 Write the principle of centrifugation and give a net on differential and density gradient cenfriguration. Q.5 Give the ultrasturcture and molecular organization of Chromosomes. Q.6 Explain Crossing over among three linked gene with suitable diagrams.

3 Paper Code: ZO- 101 Paper Title: DIVERSITY OF ANIMALS & EVOLUTION 1) Differentiate animals from plants? 2) What is five kingdom classification? 3) Define fossils? 4) Write names of any three National parks of India. 5) What are vestigial organs? 6) Differentiate between homology & analogy. 7) Write the names of six biogeographical realms of world. 8) Write a short note on Mesozoric Era. 9) What are Adaptations. 10) Give two methods of animal conservation. Q.2 Explain evolution of different life forms. Q.3 Explain different methods of fossilization. Q.4 Discuss the different Isolating mechanisms available in nature. Q.5 Write a short note of Dinosaurs & their extinction. Q.6 Differentiate between Metazoa & Protozoa on the basis of their characteristics features.

4 Paper Code: CH 103 Paper Title: PHYSICAL CHEMISTRY 1) Discuss the differentiation of function like KX and log X. 2) Define Hardware and Software of computer. 3) What do you understand by permutation. 4) Explain the term operating system by taking one example. 5) Give the formula of Root Mean Square, average velocity and most probable velocity. 6) Give the structure differences between liquids and gases. 7) Differentiate between Ideal and Non-ideal solutions. 8) Define elevation of boiling point by suitable graph. 9) What is catalysis? Explain with examples. 10) Give the name and symbols of various symmetry elements with the definition of any two symmetry elements. Q.2 Give the classification of colloids with the applications of colloids. Q.3 Give the relation between critical constant and Van-der Waals constants. Q.4 Give the Laue s method for the crystal structure determination of solids. Q.5 How you determine the molecular weight of solid by osmotic pressure method. Q.6 Explain the different components of a computer.

5 Paper Code: CH 102 Paper Title: Organic Chemistry i. Explain resonance in Organic Chemistry. Draw all the 2½ 6 resonating forms of a ii. iii. iv. phenoxide ion. Explain mechanism of any one electrophilic addition reaction. What is a Markownikoff s Rule? Explain with an example. Explain Huckel s rule of aromaticity with suitable examples. v. Give an example of Diels-Alder reaction. vi. Write the full name and structure of BHC. vii. Write chemical reactions to show 1,2 and 1,4 additions in butadiene. viii. What are activating and deactivating groups? Explain with an example of each. ix. Carbon tetrachloride is non-polar & chloroform is polar. Explain, why? x. Phenyl group is known to exert negative inductive effect, but each phenyl ring in biphenyl (C6H5 C6H5) is more reactive than benzene towards electrophilic substitution. Explain, why? Q.2 Discuss the structure, stability, formation and reactions of carbocations. Q.3 Write notes on the following : (i) Baeyer s Strain (ii) The Saytzeff Rule Q.4 Write the mechanism of the following reactions : (I) Wurtz Reaction (ii) Sandmayer Reaction Q.5 Write the complete mechanism for the diazotization reactionof a primary amine. Q.6 Discuss the SN1 and SN2 reactions in detail.

6 Paper Code: CH Paper Title: Inorganic Chemistry 1) Define Heisenberg uncertainty principal. 2) What is hybridization? Which type of hybridization found in NH 3 with diagram? 3) Define bond order and calculate bond order of N 2 molecule. 4) Give the structure of B 2H 6. 5) What is VSEPR theory? 6) Give the sequence of filling energy levels. 7) What is covalent bond? Give the example. 8) Give the formula of bond order and calculate the bond order of C 2 molecule. 9) Give three rules for linear combination of atomic orbitals. 10) How does the size of atoms vary from left to right in a period, and on descending a group in the periodic table? What are the reasons for these changes? Note: Answer any FOUR questions. Each question carries 5 marks (Word limits 500) Q.2 Explain S,P, and d orbitals with shape? Q.3 Give the molecular orbital diagram of C 2 molecule? Q.4 Explain the follwing : (i) Give the biological role of mg +2 and ca +2 (ii) Hardness of water. (iii) Semiconductors. Q.2 Derive schrondinger wave equation? Q.3 Explain fullerenes.

7 Paper Code: BO 103 Paper Title: Pteridophytes, Gymnosperms & Paleo Botany (i) What do you understand by fossier? (ii) (iii) (iv) (v) Differentiate between angiosperm & gymnosperm. Define paleo botany. Explain stealer system in pteridophytes. What do you understand by hederospony. (vi) (vii) (viii) (ix) (x) Define alternation of generation. What do you understand by Laplo-diplo-biontic life cycle? Write down any two characteristics of seed plants. Write down any two economic importance of Gymnosperms What do you understand by endo-sperm? Q.2 Write down some characteristic features of any fossil gymnosperm. Q.3 How paleobotany can be useful in coal & petroleum exploration? Q.4 Explain different techniques used in study of fossils. Q.5Describe the life cycle of selaginella in detail. Q.6 Write down important characteristics of psilopsida.

8 Paper Code: BO 102 Paper Title: Microbiology Mycology And Plant Pathology (i) (ii) (iii) (iv) (v) Dikaryotisation in Fungi. Interferon and their importance. Types of ascocarps found in Fungi. Describe Glycocalyx. Describe structure of Aspergillus. (vi) Write about the contribution of Louis Pasteur. (vii) How Chlorella is useful is space flights and nuclear submarines? (viii) Reproduction in Mycoplasma. (ix) Economic importance of Algae. (x) What are Hormogonia? Write their importance. Q.2 Write the general characters of Bacteria. Q.3 Describe general characters and life cycle of Nostoc. Q.4 Describe general characters and life cycle of Agaricus Q.5 Describe the disease symptoms caused by Ustilago and its control. Q.6 Describe the disease symptoms caused and life cycle of Tobacco Mosaic virus.

9 Paper Code: Paper Title: BO-101 Algae, Lichens & Bryophytes (i) (ii) (iii) (iv) (v) Write a note on scales of Bryophytes. Why are lichens generally not found in cities? What are elaters? Write the systematic position of polysiphonia. Why is chara known as stonewort? (vi) Write down four important features of cyanophyceae. (vii) Name the algae which are the source of agar-agar. (viii) Differentiate between unilocular and plerilocular (ix) sporangia of Ectocarpus. (x) Write the systematic position of anthoceros. Q.2 Give a brief account of the range of thallus structure in algae. Q.3 Write the characteristic features of classes cyanophyceae. Q.4 Describe with the help of suitable diagram the sexual reproduction of vaucheria. Q.2 With the help of suitable diagram describe the internal structure of morchantia thallus.

10 Q.3 Write short notes on the following : a) Elaters and Pseudoelaters b) Scales & Ruizoids

MDS UNIVERSITY B.Sc. Part -1 BOTANY. Paper 1 MICROBIOLOGY MYCOLOGY & PHYTOPATHOLOGY

MDS UNIVERSITY B.Sc. Part -1 BOTANY Examination Scheme-Theory Duration M.M. Min Paper-I Microbiology, Mycology & Phytopathology 3hrs 50 Paper- II Algae, Lichens and Bryophyta 3hrs 50 54 Paper- III Pteridophytes