jaipur national university, jaipursodel.jnujaipur.ac.in/assignment/b.sc. 1st year.doc · web...

JAIPUR NATIONAL UNIVERSITY, JAIPURSchool of Distance Education & Learning

Internal Assignment No. 1

Bachelor of Science (B. Sc)

Paper Code: BO-101Paper 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.




Paper Code: BO-101Paper Title: Algae, Lichens & Bryophytes





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.


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.




Paper Code: BO– 102Paper Title: Microbiology Mycology And Plant Pathology




(i) Dikaryotisation in Fungi.

(ii) Interferon and their importance.

(iii) Types of ascocarps found in Fungi.

(iv) Describe Glycocalyx.

(v) Describe structure of Aspergillus.


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




Paper Code: BO– 102Paper Title: Microbiology Mycology And Plant Pathology




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.


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




Paper Code: BO– 103Paper Title: Pteridophytes, Gymnosperms & Paleo BotanyLast date of submission: Max. Marks: 15



(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.


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.




Paper Code: BO– 103Paper Title: Pteridophytes, Gymnosperms & Paleo BotanyLast date of submission: Max. Marks: 15



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.




Paper Code: CH – 101Paper Title: Inorganic Chemistry




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.


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.




Paper Code: CH – 101Paper Title: Inorganic Chemistry



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.


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.




Paper Code: CH– 102Paper Title: Organic Chemistry




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.


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




Paper Code: CH– 102Paper Title: Organic Chemistry




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?


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.




Paper Code: CH– 103Paper 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.


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.




Paper Code: CH– 103Paper Title: PHYSICAL CHEMISTRY



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.


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.




Paper Code: ZO- 101Paper Title: DIVERSITY OF ANIMALS & EVOLUTION



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?


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.

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Paper Code: ZO- 101Paper Title: DIVERSITY OF ANIMALS & EVOLUTION



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.


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.




Paper Code: ZO- 102Paper Title: II-CELL BIOLOGY AND GENETICS



Q. 1. Answer all the questions:i. Describe the process of meiosis.

ii. What is cell theory? Describe in detail.

iii. Write short note on Chiasmata.

iv. Give an experiment to show that DNA is the genetic material.

v. Describe the Frankel-conrot’s experiment.


Q.2 Give modern definition of gene classify genes on the basis of their function and

activity.

Q.3 How is the initiation coded on MRNA is recognised by small submit of ribosome in

prokaryotes?

Q.4 How many bases code for one amino acid? Describe in details.




Paper Code: ZO- 102Paper Title: II-CELL BIOLOGY AND GENETICS



Q. 1. Answer all the questions:1) Differentiate between transduction and transformation.

2) Describe chargoff’s rule of have equivalence in DNA.

3) Describe the Lamp brush Chromosomes.

4) What is genetic code? Who coined the term “genetic code”?

5) Define the terms “transcription” and “translation”.


Q.2 Give differences between different types of RNAs found in the cell.

Q.3 Describe synthesis of Okazaki fragment.

Q.4 What is cell division? Give the detailed account of mitosis.




Paper Code: ZO- 103Paper Title: GAMETES AND DEVELOPMENTAL BIOLOGY



Q. 1. Answer all the questions:Define the following terms with appropriate specifications and examples.i. Zygote

ii. Cleavage

iii. Blastula

iv. Gastrula

v. Tatipotent and Pleuripotent


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?




Paper Code: ZO- 103Paper Title: GAMETES AND DEVELOPMENTAL BIOLOGY



Q. 1. Answer all the questions:Define the following terms with appropriate specifications and examples.

1) Internet external fertilization

2) Oviparus and Viviparus

3) Deploid fertilization

4) Asexual reproduction

5) Define clone. Explain whole procession short.


Q.2 Explain the cloning process with suitable diagrammatic representation.

Q.3 Discuss cell differentiation with suitable examples?

Q.4 Describe the types of eggs and explain the cleavage patterns with diagrammatic representation?




Paper Code: PH- 101Paper Title: MECHANICS



Q. 1. Answer all the questions:1) Define inertral frame of reference. Is earth an example of inertral reference frame?

2) Write a short note on length contraction.

3) For a particle moving under the influence of a central force in three dimension. Show

that the motion of the particle will be confined to a two dimensional plane.

4) Write down the Fuler’s equation for rotation in a general coordinate system. How will

the equations transform if the coordinate axes become parallel to the principle axes

of inertia.

5) State perpendicular axis theorem with the relevant mathematical relation.


Q.2 Derive the equations of motion for Foucault’s pendulum.

Q.3 Using Lorontz, transformation derive the rule of velocity addition.

Q.4 State Hooke’s law. Using Hooke’s law calculate the equivalent spring constant of a

system of two springs when they are attached (i) in series and (ii) in parallel. Assume

that individual spring has spring constant k1 and k2.




Paper Code: PH- 101Paper Title: MECHANICS



Q. 1. Answer all the questions:1) What are streamline flow and turbulent flow. Draw diagrams for each.

2) Write down clearly the assumptions that are needed to derive. Bernoulli’s theorem.

3) Draw a picture of intermolecular attraction in the liquid and on the liquid surface to

explain the phenomenon of surface tension.

4) Write down the general definition of an elastic modulus. From there define young’s

modulus. What is Poisson’s ratio?

5) Which of the following two archways can be built bigger and why -

6) a. Post and beam (Π) b. Semi circular (∩∩


Q.2 For an inelastic collision between two particles of mass m1 and m2. Calculate the

fractional kinetic energy lost.

Q.3 Show that for a system of particles, total angular momentum is the sum of angular

momentum of individual particles around the center of mass.

Q.4 Calculate the moment of inertia of a thin rectangular disk with sides ‘a’ and ‘b’ about

the axis perpendicular to the disk and passing through its center.




Paper Code: PH- 102Paper Title: WAVES & OSCILLATIONS



Q. 1. Answer all the questions:a. What is quality factor? Also interpret its physical significance.

b. Define the principle of total internal reflection.

c. Define the principle of a sonar system.

d. Define acoustic impedance of a medium with suitable example.

e. What is a musical note? Explain with the help of diagram & example.


Q.2 Show that the total energy of the system is equal to the sum of energies associated

with the two modes.

Q.3 Define force constant of a spring. Show that in S.H.M., the acceleration is directly

proportional to its displacement at that given instant.

Q.4 What is elastic potential energy? Derive its expression per unit length?




Paper Code: PH- 102Paper Title: WAVES & OSCILLATIONS



Q. 1. Answer all the questions:1) The acceleration due to gravity on the surface of moon is 1.7 m/sec2. What is the

time period of a simple pendulum on the moon if its time period is 3.5 sec on earth?

2) Does the hall for lecture have a longer period for reverberation. Illustrate?

3) What is reverberation time? Compare it’s value for speech, contemporary music &

choral music.

4) How does capillary action effect the soldering process?

5) How do s-waves and p-waves travel through earth’s interior?


Q.2 Derive wave equation for circularly & elliptically polarized electromagnetic waves.

Also define poynting vector.

Q.3 Define damped harmonic motion & solution of differential equation of damped

oscillator.

Q.4 Derive the speed of transverse waves on a uniform string, with the help of suitable

diagram.




Paper Code: PH- 103Paper Title: ELECTGROMAGNETISM



Q. 1. Answer all the questions:1) What do you mean by curl of a rector field? Give its physical significance.

2) The temperature at any point changes according to the following relation :

T=4x2+3y2–2z2

3) Calculate the value of grad T at point (1,2,3).

4) State Gauss’s divergence theorem.

5) State Ampere’s circuital law.

6) Define electrical susceptibility and Atomic polarizability.


Q.2 Giving the definition of divergence, derive its expression in Carterian Coordinate

system.

Q.3 Prove that the Gauss’s law of electrostatics is valid for moving charge.

Q.4 Discuss Biot-Sarart’s law and determine the expression for magnetic field due to long

straight current carrying wire using it.

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Paper Code: PH- 103Paper Title: ELECTGROMAGNETISM



Q. 1. Answer all the questions:1) Write right hand palm rule.

2) What do you mean by free charge density and bound charge density

3) What are polar and non-polar atoms? Give examples also.

4) Write down Gauss’s law for electrostatics and related maxwell’s equation.

5) A solenoid of diameter 4 cm, length 50 cm consists of 2000 turns. Calculate its self

inductance.


Q.5 Define magnetic susceptibility. Explain the difference between magnetizing field H

and magnetic field B.

Q.6 Derive the relations for current during charging and discharging of a capacitor in an

R–C circuit. Also give importance of time constant.

Q.7 How was the concepts of displacement current helpful in removing discrepancy in

Ampere’s law? Prove that :V H J D




Paper Code: MT - 101Paper Title: ALGEBRA & MATRICES



Q. 1. Answer all the questions:a. What is Relation between the roots and the coefficients of Biquadratic

Equation.b. Form the equation whose roots are the root of the following equation :

x6 – 4x4

+ 3x2 –1 = 0

c. Apply Descarte’s Rule of signs to discuss the nature of the root of : x4 + 15x2 + 7x – 11 = 0

d. Define Skew Hermition matrix.

e. Find x, if





Paper Code: MT - 101Paper Title: ALGEBRA & MATRICES




(a)

(b) If G = {1,–1, i, –i} is a group under multiplication, then find all possible subgroup of G.

(c) Define order of an element of a group.

(d) Define isomorphism of groups.

(e) Write down all possible permutations of the set A = {1, 2,3}.


Q.2 A group of order n is cyclic.

Q.3 Let H = {x|XEG, ax = xa aEG

Where G is a group. Show that H is a subgroup of G

Q.4 Solve the equation

X4– 2x3 – 5x2+ 10 x – 3 = 0 by Ferrari’s method.




Paper Code: MT - 102Paper Title: CALCULUS








Paper Code: MT - 102Paper Title: CALCULUS




(a)(b)(c)(d)(e)


Q. 2

Q. 3

Q.4




Paper Code: MT - 103Paper Title: VECTOR CALCULUS & GEOMETRY








Paper Code: MT - 103Paper Title: VECTOR CALCULUS & GEOMETRY



Q. 1. Answer all the questions:1. Find the equation of a circle of radius 5 whose centre lies on x-axis and passes

through the point (2,3).

2. Find foci and eccentricity for the following ellipse :

X2/16 + Y2/9 = 1

3. Find the equation of light circular cone.

4. Find the equation of the polar plane of the point

5. Find the equations of the normal at the point P(x1, y1, z1) of the ellipsoid.


Q. 2 Verify Green’s theorem in a plane with respect to x2-y2)dx+2xy dy, where C is the boundary of the rectangle in the xy-plane bounded by the lines x=0, x=a, y=0 and y=b.

Q. 3 Find the equation of the right circular cone with vertex at the origin, line is axis and which passes through the point (1,1,2).

Q. 4 Find the equation of the right circular cylinder having the line as axis and passes through the point (0,0,3).

jaipur national university, jaipursodel.jnujaipur.ac.in/assignment/b.sc. 1st year.doc · web...

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