FAISALABAD BOARD 2012
PAPER BIOLOGY
PART-I
Time: 20 M.
(Objective Part)
Marks: 17
Note: Four answer are given against each question in columns A, B,C and D. Select the right answer and on the separate Answer Sheet, fill the circle A,B,C or D with pen or marker in front of that question number.

Question#1

• Passive immunity is developed by injecting:
  
  (a) Vaccine
  (b) Serum
  (c) Antiserum
  (d) Antibiotic
  
  
• In Cockroach. a pair of lateral openings of the heart chamber is called:
  
  (a) Ostia
  (b) Osculum
  (c) Nephridiopore
  (d) Medreporit
  
  
• The most efficient and highly modified for gaseous exchange in equatic animals are:
  
  (a) Lungs
  (b) Spiracles
  (c ) Gills
  (d) Trachea
  
  
• pH is fresh saliva is:
  
  (a) 6
  (b) 8
  (c) 9
  (d) 10
  
  
• Magnesium of chlorophyll is replaced in hemoglobin by:
  
  (a) Calcium
  (b) Potassium
  (c) Iron
  (d) Phosphorus
  
  
• Mammals become dominant in:
  
  (a) Mesozoic Period
  (b) Cenozoic period
  (c) Paleozoic period
  (d) Jurasic period
  
  
• In the protosomes, the blastopore forms the:
  
  (a) Mouth
  (b) Brain
  (c) Anus
  (d) Excretory pore
  
  
• Family of sewwt pea is:
  
  (a) Fabacear
  (b) Solanaceae
  (c) Rosaceae
  (d) Poaceae
  
  
• The term lodicules refer to:
  
  (a) Bract
  (b) Bracteoles
  (c) Perianth
  (d) Calyx
  
  
• Histoplasmosis is a serious infection of:
  
  (a) Liver
  (b) Stomach
  (c) Kidney
  (d) Lung
  
  
• Algae which take part in building coral reefs along with coral animals are;
  
  (a) Red algae
  (b) Brown algae
  (c) Green algae
  (d) Diatoms
  
  
• Reserve food material in cyanobacteria is:
  
  (a) Starch
  (b )Glycogen
  (c) Fats
  (d) Glycerol
  
  
• Smallpox is caused by:
  
  (a) Bacteria
  (b) Fungi
  (c) Virus
  (d) Protozoans
  
  
• The protein present in microtubules is:
  
  (a) Actin
  (b) Myosin
  (c) Tropomyosin
  (d) Tubulim
  
  
• Optimum pH of pepsin is:
  
  (a) 2.00
  (b) 4.50
  (c) 5.50
  (d) 6.80
  
  
• The most abundant carbohydrate in nature is:
  
  (a) Starch
  (b) Cellulose
  (c) Glycogen
  (d) Agar
  
  
• The tentative explanation of observation is called:
  
  (a) Law
  (b) Theory
  (c) Hypothesis
  (d) Deduction

Time: 2:40 Hours
(Subjective Part)
Marks: 68
SECTION-1:

2. Write short answer any Eight Parts.

• What is biome? Give example.
• Differentiate between micromolecules and macromolecules.
• Write down four functions of proteins.
• What is conjugated molecule? Give example.
• What are dikaryotic hyphae?
• How spores are different from conidia?
• Why bryophytes are called amphibious plants?
• What are arthrophyte plants? Give example.
• Differentiate annulus and stomial cells.
• Define macrophagous feeding with example.
• Differentiate food poisoning and botulism.
• Define symbiotic nutrition. Give example.

3. Write short answer any Eight Parts.

• What do you know about intergranum?
• Define sacculus.
• What are prions?
• Define the term adsorption.
• What are mesosmes?
• What are microaerophilic bacteria?
• Define parabronchi.
• Explain spiracles in cockroach.
• Define antiserum.
• Define passive immunity.
• What do you know about cell-mediated response?
• What is bursa of fabricius?

4. Write short answer any Six Parts.

• How do irreversible inhibitors chek the rate of reaction?
• What is the commercial importance of marine algae?
• How do ciliated differs from other protozoans?
• Differentiate between acoelomata and coelomata.
• What is notochord? State its function.
• Name the bones of mammalian ear. Give their number.
• Name the processes which act as energy capturing and energy releasing,
• What are accessory pigments? State their role.
• What is Rubisco? What is its function?

SECTION-II

Attempt any three Questions
Question#5
(a)Write down characteristics of fibrous proteins and globular proteins. 04
(b) Describe respiration in fishes. 04

Question#6
(a) Explain lytic cycle in viruses. 04
(b) Explain adaptation of platyhelmenthes towards parasitic mode of life.

Question#7
(a) Write a note on p1ant cell wall. 04
(b) What are adaptive characters of bryophytes to land habitat? 04

Question#8
(a) What is transpiration? Describe its different types. 04
(b) Explain digestion in the stomach of man. 04