JAIPUR NATIONAL UNIVERSITY, JAIPUR
School of Distance Education & Learning
Internal Assignment No. 1
Bachelor of Science (B. Sc)
Paper Code: BO-101
Paper Title: Algae, Lichens & Bryophytes
Last date of submission: Max. Marks: 15
Note : Question No. 1 is of short answer type and is compulsory for all the students.
It carries 5 Marks. (Word limits 50-100)
Note: Question No. 1 is of short answer type and is compulsory for all the students.
It carries 5 Marks. (Word limits 50-100)
Q. 1. Answer all the questions:
(i) Write a note on scales of Bryophytes.
(ii) Why are lichens generally not found in cities?
(iii) What are elaters?
(iv) Write the systematic position of polysiphonia.
(v) Why is chara known as stonewort?
Note: Answer any two questions. Each question carries 5 marks (Word limits 500)
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.
JAIPUR NATIONAL UNIVERSITY, JAIPUR
School of Distance Education & Learning
Internal Assignment No. 2
Bachelor of Science (B. Sc)
Paper Code: BO-101
Paper Title: Algae, Lichens & Bryophytes
Last date of submission: Max. Marks: 15
Note : Question No. 1 is of short answer type and is compulsory for all the students.
It carries 5 Marks. (Word limits 50-100)
Note: Question No. 1 is of short answer type and is compulsory for all the students.
It carries 5 Marks. (Word limits 50-100)
Q. 1. Answer all the questions:
1) Write down four important features of cyanophyceae.
2) Name the algae which are the source of agar-agar.
3) Differentiate between unilocular and plerilocular
4) sporangia of Ectocarpus.
5) Write the systematic position of anthoceros.
Note: Answer any two questions. Each question carries 5 marks (Word limits 500)
Q.2 With the help of suitable diagram describe the internal structure of morchantia thallus.
Q.3 Write short notes on the following :
a) Elaters and Pseudoelaters
b) Scales & Ruizoids
Q.4 Describe the external and internal structure of lichen.
JAIPUR NATIONAL UNIVERSITY, JAIPUR
School of Distance Education & Learning
Internal Assignment No. 1
Bachelor of Science (B. Sc)
Paper Code: BO– 102
Paper Title: Microbiology Mycology And Plant Pathology
Last date of submission: Max. Marks: 15
Note: Question No. 1 is of short answer type and is compulsory for all the students.
It carries 5 Marks. (Word limits 50-100)
Q. 1. Answer all the questions:
(i) Dikaryotisation in Fungi.
(ii) Interferon and their importance.
(iii) Types of ascocarps found in Fungi.
(iv) Describe Glycocalyx.
(v) Describe structure of Aspergillus.
Note: Answer any two questions. Each question carries 5 marks (Word limits 500)
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
JAIPUR NATIONAL UNIVERSITY, JAIPUR
School of Distance Education & Learning
Internal Assignment No. 2
Bachelor of Science (B. Sc)
Paper Code: BO– 102
Paper Title: Microbiology Mycology And Plant Pathology
Last date of submission: Max. Marks: 15
Note: Question No. 1 is of short answer type and is compulsory for all the students.
It carries 5 Marks. (Word limits 50-100)
Q. 1. Answer all the questions:
a) Write about the contribution of Louis Pasteur.
b) How Chlorella is useful is space flights and nuclear submarines?
c) Reproduction in Mycoplasma.
d) Economic importance of Algae.
e) What are Hormogonia? Write their importance.
Note: Answer any two questions. Each question carries 5 marks (Word limits 500)
Q.2 Describe the disease symptoms caused by Ustilago and its control.
Q.3 Describe the disease symptoms caused and life cycle of Tobacco Mosaic virus.
Q.4 Write about the contributions of
a) Alexander Flemming.
b) S.A. Waksman
JAIPUR NATIONAL UNIVERSITY, JAIPUR
School of Distance Education & Learning
Internal Assignment No. 1
Bachelor of Science (B. Sc)
Paper Code: BO– 103
Paper Title: Pteridophytes, Gymnosperms & Paleo Botany
Last date of submission: Max. Marks: 15
Note: Question No. 1 is of short answer type and is compulsory for all the students.
It carries 5 Marks. (Word limits 50-100)
Q. 1. Answer all the questions:
(i) What do you understand by fossier ?
(ii) Differentiate between angiosperm & gymnosperm.
(iii) Define paleo botany.
(iv) Explain stealer system in pteridophytes.
(v) What do you understand by hederospony.
Note: Answer any two questions. Each question carries 5 marks (Word limits 500)
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.
JAIPUR NATIONAL UNIVERSITY, JAIPUR
School of Distance Education & Learning
Internal Assignment No. 2
Bachelor of Science (B. Sc)
Paper Code: BO– 103
Paper Title: Pteridophytes, Gymnosperms & Paleo Botany
Last date of submission: Max. Marks: 15
Note: Question No. 1 is of short answer type and is compulsory for all the students.
It carries 5 Marks. (Word limits 50-100)
Q. 1. Answer all the questions:
a) Define alternation of generation.
b) What do you understand by Laplo-diplo-biontic life cycle?
c) Write down any two characteristics of seed plants.
d) Write down any two economic importance of Gymnosperms
e) What do you understand by endo-sperm?
Note: Answer any two questions. Each question carries 5 marks (Word limits 500)
Q.2 Describe the life cycle of selaginella in detail.
Q.3 Write down important characteristics of psilopsida.
Q.4 Explain the distribution and structure of equisetum.
JAIPUR NATIONAL UNIVERSITY, JAIPUR
School of Distance Education & Learning
Internal Assignment No. 1
Bachelor of Science (B. Sc)
Paper Code: CH – 101
Paper Title: Inorganic Chemistry
Last date of submission: Max. Marks: 15
Note : Question No. 1 is of short answer type and is compulsory for all the students.
It carries 5 Marks. (Word limits 50-100)
Q. 1. Answer all the questions:
1) Define the term “bond order” and give its significance.
2) Explain the paramagnetic character of O2 molecule with the help of MO diagram.
3) Do you accept bond order is superoxide ion (O-2) more or less than in peroxide ion (O22) ?
4) Draw the structure of P4O10 and identity the number of single and double P-O bonds.
5) (CH3)3N is basic but (CF3)3N is not basic. Explain.
Note: Answer any two questions. Each question carries 5 marks (Word limits 500)
Q.2 What is Hund’s rule? What role does it play in building up of the electronic configuration of atoms?
Q.3 What do you understand by quantum numbers? What is the significance of the quantum numbers?
Q.4 Explain the following :
i. Electron affinity of fluorine less than that of chlorine.
ii. Alkali Metals impart flame colouration.
iii. CO2 is a gas while Sio2 is a solid.
JAIPUR NATIONAL UNIVERSITY, JAIPUR
School of Distance Education & Learning
Internal Assignment No. 2
Bachelor of Science (B. Sc)
Paper Code: CH – 101
Paper Title: Inorganic Chemistry
Last date of submission: Max. Marks: 15
Note : Question No. 1 is of short answer type and is compulsory for all the students.
It carries 5 Marks. (Word limits 50-100)
Q. 1. Answer all the questions:
a) SO3 has zero dipole moment. Why?
b) What are the important consequences of schottky and Frenkel defects?
c) With the help of electron spin, distinguish between ferromagnets, antiferromagnets and ferrimagnets.
d) Define the hydrogen bonding with examples.
e) Give the reason why XeF4 is square planar while CF3 is tetrapedral.
Note: Answer any two questions. Each question carries 5 marks (Word limits 500)
Q.2 Explain the reason for the I of diagonal relationship in the periodic table.
Q.3 Write notes on :
i. Semiconductors.
ii. Lattice defects.
Q.4 Write note on flurocarbons.
JAIPUR NATIONAL UNIVERSITY, JAIPUR
School of Distance Education & Learning
Internal Assignment No. 1
Bachelor of Science (B. Sc)
Paper Code: CH– 102
Paper Title: Organic Chemistry
Last date of submission: Max. Marks: 15
Note: Question No. 1 is of short answer type and is compulsory for all the students.
It carries 5 Marks. (Word limits 50-100)
Q. 1. Answer all the questions:
i. Explain resonance in Organic Chemistry. Draw all the 2½×6 resonating forms of a phenoxide ion.
ii. Explain mechanism of any one electrophilic addition reaction.
iii. What is a Markownikoff’s Rule? Explain with an example.
iv. Explain Huckel’s rule of aromaticity with suitable examples.
v. Give an example of Diels-Alder reaction.
Note: Answer any two questions. Each question carries 5 marks (Word limits 500)
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
JAIPUR NATIONAL UNIVERSITY, JAIPUR
School of Distance Education & Learning
Internal Assignment No. 2
Bachelor of Science (B. Sc)
Paper Code: CH– 102
Paper Title: Organic Chemistry
Last date of submission: Max. Marks: 15
Note: Question No. 1 is of short answer type and is compulsory for all the students.
It carries 5 Marks. (Word limits 50-100)
Q. 1. Answer all the questions:
a) Write the full name and structure of BHC.
b) Write chemical reactions to show 1,2 and 1,4 additions in butadiene.
c) What are activating and deactivating groups? Explain with an example of each.
d) Carbon tetrachloride is non-polar & chloroform is polar. Explain, why?
e) 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?
Note: Answer any two questions. Each question carries 5 marks (Word limits 500)
Q.2 Write the complete mechanism for the diazotization reactionof a primary amine.
Q.3 Discuss the SN1 and SN2 reactions in detail.
Q.4 Write notes on the following:
i. Walden Inversion
ii. Methods of resolution of racemic mixture.
JAIPUR NATIONAL UNIVERSITY, JAIPUR
School of Distance Education & Learning
Internal Assignment No. 1
Bachelor of Science (B. Sc)
Paper Code: CH– 103
Paper Title: PHYSICAL CHEMISTRY
Last date of submission: Max. Marks: 15
Note: Question No. 1 is of short answer type and is compulsory for all the students.
It carries 5 Marks. (Word limits 50-100)
Q. 1. Answer all the questions:
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.
Note: Answer any two questions. Each question carries 5 marks (Word limits 500)
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.
JAIPUR NATIONAL UNIVERSITY, JAIPUR
School of Distance Education & Learning
Internal Assignment No. 2
Bachelor of Science (B. Sc)
Paper Code: CH– 103
Paper Title: PHYSICAL CHEMISTRY
Last date of submission: Max. Marks: 15
Note: Question No. 1 is of short answer type and is compulsory for all the students.
It carries 5 Marks. (Word limits 50-100)
Q. 1. Answer all the questions:
a) Give the structure differences between liquids and gases.
b) Differentiate between Ideal and Non-ideal solutions.
c) Define elevation of boiling point by suitable graph.
d) What is catalysis? Explain with examples.
e) Give the name and symbols of various symmetry elements with the definition of any two symmetry elements.
Note: Answer any two questions. Each question carries 5 marks (Word limits 500)
Q.5 How you determine the molecular weight of solid by osmotic pressure method.
Q.6 Explain the different components of a computer.
Q.7 Discuss the structure of nematic and cholesteric phases of liquid crystals.
JAIPUR NATIONAL UNIVERSITY, JAIPUR
School of Distance Education & Learning
Internal Assignment No. 1
Bachelor of Science (B. Sc)
Paper Code: ZO- 101
Paper Title: DIVERSITY OF ANIMALS & EVOLUTION
Last date of submission: Max. Marks: 15
Note: Question No. 1 is of short answer type and is compulsory for all the students.
It carries 5 Marks. (Word limits 50-100)
Q. 1. Answer all the questions:
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?
Note: Answer any two questions. Each question carries 5 marks (Word limits 500)
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.
---
JAIPUR NATIONAL UNIVERSITY, JAIPUR
School of Distance Education & Learning
Internal Assignment No. 2
Bachelor of Science (B. Sc)
Paper Code: ZO- 101
Paper Title: DIVERSITY OF ANIMALS & EVOLUTION
Last date of submission: Max. Marks: 15
Note: Question No. 1 is of short answer type and is compulsory for all the students.
It carries 5 Marks. (Word limits 50-100)
Q. 1. Answer all the questions:
1) Differentiate between homology & analogy.
2) Write the names of six biogeographical realms of world.
3) Write a short note on Mesozoric Era.
4) What are Adaptations.
5) Give two methods of animal conservation.
Note: Answer any two questions. Each question carries 5 marks (Word limits 500)
Q.2 Write a short note of Dinosaurs & their extinction.
Q.3 Differentiate between Metazoa & Protozoa on the basis of their characteristics features.
Q.4 Explain the theory of Lamark.
JAIPUR NATIONAL UNIVERSITY, JAIPUR
School of Distance Education & Learning
Internal Assignment No. 1
Bachelor of Science (B. Sc)
Paper Code: ZO- 102
Paper Title: II-CELL BIOLOGY AND GENETICS
Last date of submission: Max. Marks: 15
Note: Question No. 1 is of short answer type and is compulsory for all the students.
It carries 5 Marks. (Word limits 50-100)