USWA ACADEMY JHANG Paper: Biology F.Sc 1

USWA ACADEMY JHANG

Paper: Biology                                                                                                                        F.Sc 1

Total Marks: 35                                                                                                                       Time : 1 hr

Q.1:    Each question has four possible answers. Select the correct answer:                                           07

1)	The smallest bacteria on the earth is	a) mycoplasma	b) Escherichia coli	c) staphylococci	d) epulopiscium fishelsoni
2)	Which one of the following is not the characteristics of Gram positive cell wall	a) it has two major layers	b) it is more permeable	c) it has outer membrane	d) it has lipids 1-4%
3)	Vaccine for rabbies was developed by	a) Robert Koch	b) Robert Hooke	c) Louis Pasteur	d) Robert Brown
4)	Pathogenicity of bacteria is increased by	a) mesosome	b) flagella	c) slime	d) pili
5)	Bacteria are	a) haploid	b) diploid	c) triploid	d) polyploid
6)	Reserve food material in cyanobacteria is in the form of	a) sucrose	b) starch	c) glycogen	d) protein
7)	Which one is not a cyanobacteria	a) anabaena	b) oscillatoria	c) nostoc	d) hormogonia

SUBJECTIVE

Q.2:    Write short answers of the following questions?                                                                10x2 = 20

1.      what are Koch postulates of germ theory of Disease?

2.      Describe classification of bacteria on the basis of flagella.

3.      What are pili and their functions in bacteria?

4.      Differentiate between capsule and slime.

5.    Write down misuses of antibiotics.

6.     Differentiate between cyst and spore.

7.     Define the antiseptics and disinfectants.

8.     Explain the reproduction in nostoc.

9.     Give the economic importance of cyanobacteria.

10.  Write down the types of bacteria on the basis of respiration.

Long Questions

Q.3:    (a) Write about nutrition in bacteria.                                                                                                   (4)       

            (b) Write down the chemical methods to control bacteria.                                                                 (4)

Best of Luck

CHAPTER NO-20 CHROMOSONE & DNA Jhang

CHAPTER NO-20

CHROMOSONE & DNA

Topics:introduction, types of chromosome, composition of chromosome, theory of inheritance, DNA as hereditary material,

Total Marks: 25                                                                                                                                                 Time: 35 Mins

Q.1:    Each question has four possible answers. Select the correct answer:                                                         7

1)	Structure composed of eight histone proteins and coiled DNA duplex is called:	(a)nucleotide	(b)nucleoside	(c)nucleosome	(d)all of these
2)	Role of choromosome in heredity was first determined by :	(a)Karl Correns	(b)Morgan	(c)Chargaff	(d)Franklin
3)	A typical human chromosome contains nucleotudes:	(a)140 million	(b)1.4 x 108	(c)46 million	(d)both a and b
4)	Number of chromosomes in honeybee is:	(a)32	(b)40	(c)12	(d)46
5)	Positive charge of histone proteins are due to amino acids named:	(a)arginine	(b)lysine	(c)valine	(d)both a and b
6)	The chromatin material which remains condensed throught is called:	(a)heterochromatin	(b)euchromatin	(c)chromatid	(d)centromere
7)	Particular array of chromosomes that an individual possosses is called:	(a)karyokinesis	(b)cytokinesis	(c)karyotype	(d)homologue

Q.2:    Write short answers of the following questions?                                                                                                7x2 = 14

1. Explain the telocentric and sub metacentric  shapes of chromosomes.
2. Explain the structure of nucleosome.
3. Define heterochromatin and euchromatin.
4. Define transformation.
5. Write down the chemical composition of chromosome.
6. Describe the first evidence regarding DNA as hereditary material.
7. Give the list of five living organisms with their chromosome.

Long Question

Q.3:        Define transformation and give Chase Martha’s evidence regarding transformation.                       (4)

               

USWA ACADEMY JHANG Paper: Biology F.Sc(I I)

USWA ACADEMY JHANG

Paper: Biology                                                                                                                        F.Sc(I I)

Total Marks: 60                                                                                                                       Time: 2:15 min

Q.1:    Each question has four possible answers. Select the correct answer:                                           10

1)	Detritus food chain in comparison to grazing food chain is:	(a)generally longer	(b)generally equal	(c)generally shorter	(d)none of these
2)	Total organic matter in an ecosystem is called:	(a)biome	(b)biomass	(c)food	(d)litter
3)	An example of quantitative trait in man is:	(a)hair colour	(b)skin colour	(c)eye colour	(d)shape of nose
4)	The phenomenon which ignores the independent assortment:	(a)segregation	(b)crossing over	(c)dominance	(d)linkage
5)	All are related to medulla oblangata ,except:	(a)long term memory	(b)breathing rate	(c)heart beat	(d)blood pressure
6)	The long day plants produce flowers in the presence of phytochrome:	(a)p-660	(b)p-730	(c)both of these	(d)none of these
7)	Between seminiferous tubules are interstitial cells, which secrete:	(a)estrogen	(b)progesterone	(c)aldosterone	(d)testosterone
8)	The structure in human brain which control hunger is:	(a)amygdala	(b)hippocampus	(c)thalamus	(d)hypothalamus
9)	Diploid parthenogenesis occurs in:	(a)wasp	(b)bee	(c)aphid	(d)ant
10	How many types of receptors are present in skin:	(a)3	(b)6	(c)5	(d)2

SUBJECTIVE

Q.2:    Write short answers of the following questions?                                                                12x2 = 24

A.      Define the action membrane potenrial. Give its value.

B.      What are neurotransmitters? Give examples.

C.      Shortly explain the habituation.

D.      Write a note on test tube babies.

E.       What is seed dormancy? Give its importance.

F.       Shortly explain the genetal herpes.

G.     What is test cross? Give its use.

H.      Compare the co dominance and incomplete dominance.

I.        What is MOODY?

J.        Define the eutecology and synecology.

K.      Define predation. Give its benefit.

L.       Define xerosere. Give flow chart of its stages.

Long Questions

Q.3:    (a) Write a comprehensive note on thyroid gland.                                                                              (4)       

            (b)Explain the nitrogen cycle by diagram only.                                                                                  (4)

Q.4:     (a) Define polygenic trait. Explain it with an example.                                                                      (4)

            (b) What is the role of phytochromo in photoperiodism?                                                                   (4)

Practicals

Q.5:     Write down the procedure to describe the muscle twitch by using frog’ s muscle.                           (5)

Q.6:     Draw the labeled diagram of fore limb of frog.                                                                                 (5)

USWA ACADEMY JHANG Grand Test

USWA ACADEMY JHANG

Grand Test

Paper: Biology                                                                                                                        F.Sc(I )

Total Marks: 40                                                                                                                       Time: 1:15 min

Q.1:    Each question has four possible answers. Select the correct answer:                                           07

1)	All of the following contain cartilage except:	(a)larynx	(b)trachea	(c)bronchi	(d)brancheoles
2)	The main site for gaseous exchange in plants is:	(a)lenticles	(b)cuticle	(c)epidermis	(d)stomata
3)	Surfactant is:	(a)protein	(b)lipid	(c)lipoprotein	(d)polysaccharide
4)	Normal alveolar ventilation is regulated by:	(a)haemoglobin	(b)protein	(c)oxygen	(d)carbon dioxide
5)	Apicompleins move by:	(a)cilia	(b)flagella	(c)flexing	(d)all of these
6)	Tests of foraminifera is composed of:	(a)silica	(b)calcium	(c)phosphorus	(d)sulphur
7)	Common name of pyrrophyta is:	(a)euglenoids	(b)diatoms	(c)dinoflagellates	(d)brown algae

SUBJECTIVE

Q.2:    Write short answers of the following questions?                                                                14x2 = 28

A.      Name respiratory pigment of muscle. Give its function.

B.      What changes occur in an animal during diving reflex?

C.      What is emphysema?

D.      What is the role of diaphram in inspiration and expiration?

E.       What is respiratory distress syndrome?

F.       Explain spiracles in cockroach.

G.     Differentiate the photorespiration and respiration.

H.      What is chlorella? Give its importance.

I.        How algae differ from algae?

J.        What is commercial importance of marine algae?

K.      Write down differences between fungi like protists and fungi.

L.       Give two characters of oomycetes.

M.    Explain the giant amoeba.

N.     Wtrite down two characters of ciliates. Name the sessile and motile ciliates as well.

Practicals

Q.3:     a) Describe the confirmatory test for carbohydrates.(Any two)                                                         (3)

            b) Give examples of reducing sugars.                                                                                                 (2)                   

Best of Luck