FAISALABAD BOARD 2014
PAPER BIOLOGY
PART-II
Time: 20 Min.
(Objective Part)
Marks: 17
Note: You have four choice for each objective type question as A, B, C and D. The choice which you think is correct; fill that circle in front of that question number. Use marker or pen to fill the circles. Cutting or filling two or more circles will result in zero mark in that question.

Question#1

• At the time of independence, the population of Pakistan was about:
  
  (a) 32.5 billion
  (b) 32.5 million
  (c) 150 million
  (d) 160 million

• Which biome has been increased in area by human activities?
  
  (a) Grass land
  (b) Savanna
  (c) Coniferous
  (d) Desert

• Diseases in living organisms caused by parasites are called:
  
  (a) Infestation
  (b) Endoparasites
  (c) Disinfestation
  (d) Ectoparasites
  
  
• A group of bacteria that can tolerate temperature up-to 120°C
  
  (a) Eubacteria
  (b) Mycopiasma
  (c) Archaeo-bacteria
  (d) E-coli

• Cystic fibrous patients lack a gene that codes for trans-membrance carrier of:
  
  (a) Chloride ion
  (b) Sodium ion
  (c) Calcium ion
  (d) Magnesium ion

• Which trait is transmitted directly from an affected father to only his sons?
  
  (a) X-linked
  (b) Y-linked
  (c) Autosomal
  (d) X and Y linked

• All are related to turner's syndrome, except:
  
  (a) Short stature
  (b) Webbed neck
  (c) Broad face
  (d) Without ovarie

• The most critical phase of mitosis, which ensures equal distribuion of chromatids in the daughter cells is:
  
  (a) Anaphase
  (b) Metaphase
  (c) Prophase
  (d) Telophase

• The number of chromosome in mouse is:
  
  (a) 06
  (b) 32
  (c) 26
  (d) 40

• During gastrulation the blastoderm splits into two layers, an upper layer of cells is called:
  
  (a) Hypoblast
  (b) Area pellucida
  (c) Epilblast
  (d) Area (Tam

• Between the seminiferous tubules are interstitial cells, which secrete:
  
  (a) Estrogen
  (b) Testosterone
  (c) Aldosterone
  (d) Cortieosteroids

• The long day plants produce flowers in the presence of photo chrome:
  
  (a) P-660
  (b) P-700
  (c) P-730
  (d) P-600

• All are related to medulla oblongata, except:
  
  (a) Long term memory
  (b) Breathing rate
  (c) Heart beat rate
  (d) Blood pressure
  
  
• Slightly elastic connective tissues that attach bone to bone are called:
  
  (a) Tendons
  (b) Brachialis
  (c) Brachioradialis
  (d) Ligaments
  
  
• An increases in plant girth due to the activity of vascular cambium is called:
  
  (a) Primary growth
  (b) Secondary growth
  (c) Sap wood
  (d) Heart wood
  
  
• In juxtamedullary nephrons additional capillaries extend down to form a loop of vessles called:
  
  (a) Perauhular capillaries
  (b) Efferet arterioles
  (c) Vasa recta
  (d) Glomerulus
  
  
• Which is an endotherm?
  
  (a) Birds
  (b) Bat
  (c) Humming bird
  (d) Reptiles

FAISALABAD BOARD 2014
PAPER BIOLOGY
PART-II
Time: 2:10 Hours
(Subjective Part)
Marks: 83
Section II

2. Attempt any EIGHT short questions. (8 x 2 = 16)

• Define homeostasis.
• What is anhydrobiosis?
• What is counter current multiplier mechanism?
• Write two differences between sclerenchyma and collenchyma cells.
• Differentiate between hyaline and fibro cartilage.
• What is antagonistic action of muscles?
• Define growth correlations.
• What is mitotic apparatus?
• What is Chromosomal non disjunction?
• Define cell cycle.
• What is the theory of special creation?
• Differentiate between endangered and extinct species.

3. Attempt any EIGHT short questions. (8 x 2 = 16)

• Differentiate between nerve impulse and saltatory impulse.
• Define resting membrance potential. Give its value.
• What are neurotransmitters? Give examples.
• Write a note on test tube babies.
• What is tissue culture? Explain.
• What is Menopause? At what age it starts?
• Explain transgenic organisms?
• What is cystic fibrosis?
• Differentiate between savanna and rairies.
• Where Thai and Thar are situated?
• What is green house effect?
• How energy can be produced from solid wastes?

4. Attempt any SIX short questions. (6 x 2 = 12)

• What is difference between heterochromatin and euchromatin?
• Define nucleosome. Give its components.
• How mRNA in eukaryotic cells remain protected from nucleases and phosphates?
• What is product rule?
• Define test cross. Give its application,
• What are polygenic traits? Give examples.
• Define xerosere. Give flow chart of its stage.
• Define food chain and food web.
• How nitrogen depletion from soil is being overcomes in nature?

SECTION III

Attempt any THREE questions. (8 x 3 = 24)
Question#5
(a) Explain terms deforestation and afforestation.
(b) Write note on thermoregulation in mammals.

Question#6
(a) Give structure of skeletal muscle.
(b) Explain Darwin theory of natural selection.

Question#7
(a) Describe various hormones secreted by anterior lobe of pituitary gland,
(b) Describe predation and parasitism and their significance,

Question#8
(a) Discuss the process of birth in human female.
(b) Describe chemical composition of chromosome.

Question#9
(a) Explain embryonic induction.
(b) Write a shod note on multiple alleles.

SECTION IV

10. Attempt any THREE questions. (5 x 3 = 15)
(A) Sketch and label the excretory and reproductive system of female frog.
(B) Sketch and label the hind limb of frog,
(C) Write an experiment to study the polytene chromosome. Also make its labelled diagram.
(D) Write down the procedure to determine water content of a soil sample.
(E) Give short answer:

• Define hydrophytes.
• What is kymograph?
• What is an ecological pyramd?
• Define ganglion.
• What is the use of clinostat?