Fsc Bio Papers

Biology Group-I
(Objective)
1. Four possible answers are given to eac statement.Tick (P) the correct one.
(i) If we extract blood clotting protein fibrinogin from the blood, it remans:
(a) Tissue fluid (b) Serum
(c) Lymph (d) Plasma
(ii) In every degment of earthworm number of nephredia is:
(a) 4 (b) 2
(c) 9 (d) 5
(iii) Which organism moves with the help of pseudopodium?
(a) Euglena (b) Amoeba
(c) Paramecium (d) Volvox
(iv) The sensory nerve which controls the function of eye is called:
(a) Auditory nerve (b) Optic nerve
(c) Olfactory nerve (d) Spinal nerve
(v) In peach the fruit is derived from the:
(a) Wall of the ovary (b) Endosperm
(c) Mega spore (d) Petals
(vi) Who invented chromosomes in 1876?
(a) Watson (b) Waldeyer
(c) Charles Darwin (d) Greger Johann Mendel
(vii) Variations in phenotype due to use or disuse of body organs are called:
(a) Inherited characters (b) Acquired characters
(c) Degenerated characters (d) Genetic characters
(viii) In nitrogen cycle, gaseous nitrogen is converted into amonia by:
(a) Asimilation (b) Nitrogen fixation
(c) De-nitrification (d) amonification
(ix) Reproduction in runners takes place by:
(a) Budding (b) By stem
(c) By root (d) Spores
(x) Sunlight, temperature, air and water are example of:
(a)Biotic factors (b) A biotic factors
(c) Nutrients (d) Mineral resources
(xi) Symbiosis is a relationship between two organisms in which:
(a) One benefits and other losses
(b) Both get benefit
(c) One benefits but other neither benefits nor lose
(d) Both lose
(xii) Over crowding, humid and dirty conditions also promote the spreading of:
(a) Viruses (b) Bacteria
(c) Mico-bacterium (d) Plasmodium
Biology Group-I
(Subjective)
(Part-I)
Write short answers of any Eighteen parts of the following:
(i) Define closed circulatory system with example.
(ii) Differentiate between systolic and diastolic blood pressure.
(iii) What is Bowman's filtrate? What mainly it consists of?
(iv) Define phototropism with example.
(v) name types of glands in human body.
(vi) State importance of adrenaline hormone.
(vii) Define double fertilization. In which plants this occures?
(viii) Differentiate between binary fission and multiple fission.
(ix) At what stage neurula changes into tadpole?
(x) State importance of sexual reproduction.
(xi) Differentiate between self fertilization and cross fertilization.
(xii) State the importance of gamete.
(xiii) Give importance of pea plant according to genetics.
(xiv) What is convergent evolution? Give example.
(xv) Define trophic level. At which trophic level are producers placed?
(xvi) Which trophic levels are formed by primary consumers and secondary consumers?
(xvii) How amount of carbon is maintained in the atmosphere?
(xviii) Stae importance of cycleing of materials in nature.
(xix) Define an aerobic respiration and as a result which compounds are produced?
(xx) Differentiate between air pollution and water pollution.
(xxi) Compare free fixers and symbionts.
(xxii) State how knowledge of biology has helped in increasing the yield of crops?
Part-II
3. (a) Compare haemodialysis with peritonial dialysis.
(b) Illustrate the structure and function of pancreas.
4. (a) What are runners and suckers? What is their importance in vegetative propagation? Explain it with examples.
(b) Give in detail the application of genetic engineering.
5. (a) What is biosphere/ What is meant by balance in nature?
(b) Differentiate between air pollution and siil pollution. Suggest foruu measurements to control pollution.

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