FAISALABAD BOARD 2017
(Objective Type)
Biology
Time Allowed: 20 Minutes
Maximum 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 circle. Cutting or filling two or more circles will result in zero mark in that question. Attempt as many questions as given in objective type questions papers and leave others blank. No credit will be awarded in case. BUBBLE are not filled. Do not solve questions on this sheet of OBJECTIVE PAPER.

• The first ever clone was prepared in 1997 in:
  
  (A) England
  (B) Ireland
  (C) Scotland
  (D) Maryland


• The most abundant carbohydrate in nature is:
  
  (A) Starch
  (B) Cellulose
  (C) Glycogen
  (D) Agar

• The optimum pH of pepsin is:
  
  (A) 2.00
  (B) 4.0
  (C) 6.00
  (D) 8.00


•  Infoldings of inner membrane of mitochondria are:
  
  (A ) Granum
  (B) Thylakoids
  (C) Cistemae
  (D) Cristae


• A disease, which is highly contagious is:
  
  (A) Measles
  (B) Mumps
  (C) Influenza
  (D) Herpes


• Bacteria divide at exponential rate during:
  
  (A) Stationary phase
  (B) Decline phase
  (C) Log phase
  (D) Lag Phase


• AIgae which take part in building coral reefs along with coral animals are.
  
  (A) Red algae
  (B) Brown algae
  (C) Green algae
  (D) Diatoms


• Example of soil dwelling carnivorous fungus is:
  
  (A) Penicillium
  (B) Arthrobotrys
  (C) Arrmillaria
  (D) Pleurotus


• The plants of sphenopsida are also called as:
  
  (A) Angiosperms
  (B) Gymnosperms
  (C) Mosses
  (D) Arthophytes


• An example of beautiful and delicate sponge called Venus flowers basket is:
  
  (A) Sycon
  (B) Leucosolenia
  (C) Euplectella
  (D) Spongilla


• In birds, the organ of voice is called:
  
  (A ) Larynx
  (B) Syrinx
  (C) Vocal cards
  (D) Parabronchi


• Magnesium of chlorophyll is replaced in haemoglobin by:
  
  (A) Calcium
  (B) Potassium
  (C) iron
  (D) Phosphorus


• The dark reaction occurs in:
  
  (A) Cytoplasm
  (B) Grana
  (C) Thylakoids


• Gallstones are produced due to precipitation of:
  
  (A) Milk
  (B) Protein
  (C) Cholesterol
  (D) Glucose


• All of these contain cartilage except:
  
  (A) Bronchi
  (B) Bronchioles
  (C) Trachea
  (D) Larynx


• Single circuit heart is found in:
  
  (A) Fishes
  (B) Reptiles
  (C) Birds
  (D) Mammals


• One complete heart beat consists of one systole and one diastole which lasts for about:
  
  (A) 0.2 seconds
  (B) 0.8 seconds
  (C) 0.5 seconds
  (D) 1.0 seconds

(Subjective Type)
Time 2.40 Hours
Group-I
Maximum Marks: 68

NOTE: - Write same question number and its part number on answer book, as given in the question paper.
2. Attempt any eight parts.

1. What are conjugated molecules? Give examples.
   
2. Define cofactor and also mention its function.
   
3. A High level of substrate concentration, enzyme reaction is not increased. Why?
   
4. Define induce fit model about catalysis.
   
5. Write resemblances of fungi with plants.
   
6. Differentiate between karyogamy and plasmogamy.
   
7. Define protandrous.
   
8. Differentiate between diploblastic and triploblastic animals.
   
9. Write two adaptations for parasitic mode of life in Platyhelminthes.
   
10. What is mantle? In which phylum it is present?
    
11. Define compensation point.
    
12. Differentiate between action and absorption spectrum.

3. Write short answers of any eight parts from the following.

1. Define population. Write its two attributes.
   
2. How biorne differ from biosphere?
   
3. Write important postulates of cell theory.
   
4. Differentiate between chromoplast and leucoplast.
   
5. Differentiate between micronucleus and macronucleus in ciliates.
   
6. What are apicomplexans?
   
7. Give important characters of water molds.
   
8. What are red tides?
   
9. What is alternation of generation?
   
10. What are Arthrophytes? Give an example.
    
11. Differentiate between single circuit and double circuit heart.
    
12. What is guttation?

4. Write short answer of any six question

1. What is intracellular obligate parasites? Give example.
   
2. Differentiate between gram-positive and gram-negative bacteria.
   
3. Enlist enzyme secreted from jejunum.
   
4. What is pyrosis? Write the cause.
   
5. What is obesity? Write reasons.
   
6. What is diving reflex?
   
7. What is Asthma? Write their causes?
   
8. What is the concentration of carbon dioxide in arterial and venous blood?
   
9. What is mechanism of exhalation in man?

SECTION-II

NOTE: - Attempt any three questions.
Q5:
(a) Describe the role of drug treatment and gene therapy in disease control
(b) Describe four functions of lymphatic system.

Q6: (a) Differentiate between DNA and RNA.
(b) How digestion takes place in cockroach?

Q7: (a) Compare prokaryotic and eukaryotic cell.
(b) Discuss the role of CO₂ in photosynthesis.

Q8: (a) Discuss the five kingdom system of classification proposed by Robert Whittaker.
(b) Write first four steps involved in the evolution of seed habit in plants.

Q9: (a) Explain the use and misuse of antibiotics.
(b) Give a brief account of fungi with reference to lichens and predators.