FAISALABAD BOARD 2016
PAPER BIOLOGY
PART-I
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

• Poisonous mushrooms are called:
  
  (a) Toadstools
  (b) Truffles
  (c) Morels
  (d) Agaricus
  
  
• The feeding stage of a slime mold is:
  
  (a) Mycelium
  (b) Pseudopodium
  (c) Hyphae
  (d) Plasmodium

• Pili are made up of special protein called:
  
  (a) Pilin
  (b) Flagellin
  (c) Tubulin
  (d) Myosin

• The basic unit of classification is:
  
  (a) Genus
  (b) Phylum
  (c) Class
  (d) Species

• Who reported the presence of nucleus in the cell?
  
  (a) Robert Brown
  (b) Robert Hooke
  (c) Schleiden
  (d) Schwann

• Poisons like cyanide, antibiotics, anti-metabolites and some drugs are examples of:
  
  (a) Enzymes
  (b) Inhibitors
  (c) Coenzymes
  (d) Holoenzymes

• For the synthesis of 10gm of glucose, plants use solar energy of about:
  
  (a) 574 K cal/gm
  (b) 550 K cal/gm
  (c) 717.6 K cal/gm
  (d) 717.6 K cal
  
  
• The number and variety of a species in a place is called:
  
  (a) Population
  (b) Community
  (c) Biodiversity
  (d) Diversity

• Sieve tube cells and companion cells communicate with each other through:
  
  (a) Sieve pores
  (b) Casparian strip
  (c) Plasmodesmata
  (d) Cell membranes

• Guttation occurs in plants through:
  
  (a) Cuticle
  (b) Hydathodes
  (c) Lenticels
  (d) Stomata

• Water is more viscous than air by:
  
  (a) 25 times
  (b) 150 times
  (c) 75 times
  (d) 50 times

• The human stomach is situated below the:
  
  (a) Liver
  (b) Diaphragm
  (c) Kidneys
  (d) Spleen
  
  
• Conversion of one pyruvic acid into one acetyl CoA gives off one molecule of:
  
  (a) Citrate
  (b) Pyruvate
  (c) NADH
  (d) ATP

• The dark reactions occur in:
  
  (a) Cytoplasm
  (b) Chloroplast
  (c) Stroma
  (d) Grana

• Voice producing organ in birds is:
  
  (a) Pharynx
  (b) Tongue
  (c) Larynx
  (d) Syrinx
  
  
• Pseudocoelom is present in:
  
  (a) Roundworm
  (b) Flatworm
  (c) Segmented worm
  (d) Coelenterates
  
  
• The part of flower which develops into fruit is:
  
  (a) Seed
  (b) Flower
  (c) Ovary wall
  (d) Ovule wall

Time: 2:40 Hours
(Subjective Part)
Marks: 68
Section I

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

• What is hydroponic culture technique?
• How AIDS spread? (iii) Define Biochemistry.
• How irreversible inhibitors inhibit enzyme activity?
• What do you mean by optimum pH for an enzyme?
• Differentiate between Lock and Key Model and Induce Fit Model of enzyme.
• What are choanoflagellates?
• Why the phytophthora infestan is famous in human hisotry?
• Give two examples of unicellular green algae.
• What are trichonymphas? (xi) Distinguish rusts from smt ts.
• What is ergotism? How it is caused?

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

• What is stroma? Give function.
• How pinocytosis differ from phagocytosis?
• What are photosystems? Give their types.
• Give the molecular formula of chlorophyll "a" and chlorophyll "b".
• Why annelids and arthropods are considered as having same origin?
• Differentiate between radial and bilateral symmetry.
• Name the excretory organs of phylum annelida and arthropoda.
• How ostia differ from osculum?
• What do you know about parabronchi and counter current exchange?
• Differentiate between bronchi and bronchioles.
• How haemoglobin differ from myoglobin?
• Give two properties of respiratory surface.

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

• What is reverse transcriptase?
• What are pili? Give their functions.
• Differentiate between homospory and heterospory.
• What are arthrophytes? Quote an example.
• What are omnivores? Give their two examples.
• Write down the name of three pairs of salivary gland in human.
• What is Jaundice?
• Where stomata are found in isobilateral leaf?
• What are Oedema and Leucaemia?

SECTION-I1

Attempt any THREE questions. (8 x 3=24)

Question#5
(a) Describe population and community levels of organization in Biology.
(b) Give adaptations of bryophytes for life on land.

Question#6
(a) Write a note on primary structure of proteins.
(b) Describe digestion of food in stomach of man.

Question#7
(a) Write note on plastids.
(b) Explain adaptations of fungi on land.

Question#8
(a) Discuss any two diseases caused by viruses.
(b) Prove that water is source of oxygen in photosynthesis.

Question#9
(a) Discuss the process of nutrition in bacteria.
(b) Explain different hypotheses for opening and closing of stomata.