FAISALABAD BOARD 2013
PAPER BIOLOGY PART-I
Time: 20 Min.
(Objective Part)
Marks: 17
Note: You have four choices 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

• In. most sponges the outer layer of body wall is made up of Cells called:
  
  (a) Chnocytes 
  (b) Pinacoderm 
  (c) Choanoderrn
  (d) Pinacocytes
  
  
• In birds the organ of voice is called:
  
  (a) Larynx 
  (b) Syrinx
  (c) Vocal cords
  (d) Parabronchi
  
  
• The NADPH molecule will provide reducing power for the Synthesis of sugar in the:
  
  (a) Calvin cycle
  (b) Cyclic phosphory lation
  (c) Electron transport chain
  (d) Chemiosmosis
  
  
• The breaking of the terminal phosphate of ATP release energy of about:
  
  (a) 9.3 K Cal.
  (b) 3.7 K Cal. 
  (c) 7.3 K Cal.
  (d) 5.3 K Cal.
  
  
• Hepatic and pancreatic secretion is stimulated by a hormone called:
  
  (a) Gastrin
  (b) Secretin
  (c) Zymogens 
  (d) Parietal
  
  
• The normal alveolar ventilation is regulated by:
  
  (a) Hemoglobin 
  (b) Oxygen
  (c) Iron
  (d) Carbon dioxide
  
  
• A substance that inhibits blood clotting is:
  
  (a) Heparin 
  (b) Fibrinogen
  (c) Fibrin 
  (d) Thrombin
  
  
• Closely associated with root pressure is phenomenon called:
  
  (a) Hydathods
  (b) Imbibitions
  (c) Guttation
  (d) plasmolysis
  
  
• The process of evolution of leaf was completed in more than million years:
  
  (a) 10-15
  (b) 15-20 
  (c) 20-25 
  (d) 10-12
  
  
• In cities, particularly the exhaust from auto mobiles is enormously adding into the atmosphere:
  
  (a) Chromium 
  (b) Nitrogen 
  (c) Lead 
  (d) Cyanide
  
  
• Which one is the most abundant carbohydrate in nature?
  
  (a) Cellulose
  (b) Glycogen 
  (c) Glucose 
  (d) Starch
  
  
• Which one is the essential raw material form coenzymes?
  
  (a) Proteins
  (b) Vitamins
  (c) Carbohydrates 
  (d) Lipids
  
  
• All are related to secondary cell wall, except:
  
  (a) Cutin 
  (b) Silica
  (c) Waxes 
  (d) Cellulose
  
  
• The smallest known viruses the contain RNA in spherical capsid are the:
  
  (a) Herpes viruses 
  (b) Influenza viruses
  (c) Polio viruses
  (d) Pox viruses
  
  
• The cell wall of most bacteria have a unique macro molecule called:
  
  (a) Chitin
  (b) Peptidoglycon 
  (c) Protoplast
  (d) Cellulose
  
  
• The feeding stage of slime mold is called:
  
  (a) Plasmodium 
  (b) Pseudopodium
  (c) Endocytosis 
  (d) Seizing
  
  
• Unicellulary yeasts fungi reproduce asexually by:
  
  (a) Zygospores 
  (b) Conidia 
  (c) Spore formation 
  (d) Budding

Time: 3:10 hours 
(subjective Part)
Marks: (83)
Section-II

2. Attempt any EIGHT short questions.16

• Differentiate between amylase and amylopectin starches.
• Define biotechnology.
• What is difference between thrombus and embolus?
• What is protandrous with reference to sponges reproduction?
• Describe lock and key model of enzyme action.
• How coral reefs are formed?
• Describe incomplete metamorphosis.
• What is active site? Describe its two parts.
• Describe the rote of swim bladder in fishes?
• Define inhibitors and give examples.
• Differentiate between source and skin.
• What is hydroponic culture technique? Give its use.

3. Attempt any EIGHT short questions.16

• What are gram negative bacteria?
• What are ciliates? Give one example.
• What are trichonymphas?
• Now slime mold reproduces?
• How ciliates differ from other protozoan’s?
• What are megaphylls?
• Name two plants of family solanaceas.
• What kinds of chlorophylls are found in photosynthetic plants and algae?
• Define glycolysis. Where it takes place?
• What are detritivores? Give example.
• What is heart burn or pyrosis?
• What is Diarrhea?

4. Attempt any SIX short questions. (6x2=12)

• Differentiate between phagocytosis and pinocytosis.
• Give two functions of cytoplasm.
• What is induction?
• What is nuclear mitosis?
• How spores are different from conidia?
• Give the composition of inhald and exhaled air In man.
• Define cellular respiration.
• Name the body structures involved for gaseous exchange in frog.
• Give two roles of myoglobin In muscles.

Section-III

Attempt any three Questions: (8*3=24)
Question#5
(a) Discuss the drug treatment gene therapy against the diseases.(4)
(b) With the help of a diagram discuss the life cycle of rhizopus. (4)

Question#6
(a) Write a note on importance of water. (4)
(b) Explain Kreb's cycle with the help of diagram. (4)

Question#7
(a) Write a note on obesity and dyspepsia. (4)
(b) Write a note on Golgi apparatus. (4)

Question#8
(a) Write nutrition in bacteria. (4)
(b) What is alternation of generation? Give its significance. (4)

Question#9
(a) Explain life cycle of bacteriophage. (4)
(b) Write a note on major types of immunity. (4)

SECTION-IV

10. Attempt any THREE questions. (5*3=15)

(A) (i) You are provided with a solution and benedicts solution. Write biochemical tests for the substance present in solution. (3)
(ii) Give two examples o reducing sugars. (2)
(B)(i) You are given the flower Lathyrus adoratus. Describe in technical terms of its following parts. (3)
Corolla, Androecium, Gynoeciurn
(ii) What is inflorescence? Name its two types. (2)
(C) Sketch and label the diagram of respiratory system of frog.
(D)(i) Write the procedure to investigate and measure the factor (wind) affecting the rate of transpiration using photometer. (3)
(ii) Differentiate between evaporation and transpiration. (2)
(E)Give one character for the identification of following laboratory specimens:
(i) Nostoc 
(ii) Volvox
(iii) Yeast 
(iv) Sporophyte of adiantum
(v) T.S. of dicot root.