SAHIWAL BOARD
BIOLOGY
(Session: 2015)
INTER-(Part-I)
(Group-1)
New Scheme
Time: 15 Minutes
(OBJECTIVE)
Marks: 17
Note: Four possible answers A,B,C and D to each question are given. The choice which you think is correct; fill that circle in front of that question with Marker or Pen ink. Cutting or filling two or more circle will result in ZERO mark in that question.

Question#1

• Giants of the protists kingdom are included in:
  
  (a) Brown algae
  (b) Red algae
  (c) Green algae
  (d) Diatoms
  
  
• Reindeer mosss is a:
  
  (a) Fungus
  (b) Lichen
  (c) Moss
  (d) Mold
  
  
• The part of flower which develops into fruit is:
  
  (a) Flower
  (b) Seed
  (c) Ovule wall
  (d) Ovary wall
  
  
• Syrinx is organ of voice in:
  
  (a) Amphibians
  (b) Birds
  (c) Reptiles
  (d) Mammals
  
  
• The dark reaction occurs in:
  
  (a) Cytoplasm
  (b) Chloroplast
  (c) Stroma
  (d) Grana
  
  
• In protostomes, the blastopore forms the:
  
  (a) Anus
  (b) Brain
  (c) Excretory pore
  (d) Mouth
  
  
• The breaking of terminal phosphate of ATP releases energy of about:
  
  (a) 4.5 kcal
  (6) 6.5 kcal
  (c) .3.7 kcal
  (d) 7.3 kcal
  
  
• Excess gastric secretion is an important factor of:
  
  (a) Obesity
  (b) Piles
  (c) Food poisoning
  (d) Peptic ulcer
  
  
• How many molecules of oxygen can bind with a molecule of myglobin:
  
  (a) 4
  (b) 3
  (c) 2
  (d) 1
  
  
• Normal pH of human blood is:
  
  (a) 4.4
  (b) 5.4
  (c) 6.4
  (d) 7.4
  
  
• Guttation occurs in plants through:
  
  (a) Cuticle
  (b) Hydathodds
  (c) Lenticels
  (d) Stomata
  
  
• Pasteurization is widely used for preservation of:
  
  (a) Food product
  (b) Meat products
  (c) Milk products
  (d) Meat
  
  
• The mRNA, of the total cell RNA is about:
  
  (a) 3-4%
  (b) 1-2%
  (c) 2-4%
  (d) 3-5%
  
  
• The vitamins are essential raw material for the synthesis of:
  
  (a) Activators
  (b) Co-factor
  (c) Co-enzymes
  (d) Prosthetic group
  
  
• Golgi apparatus is concerned with cell:
  
  (a) Division
  (b) Lysis
  (c) Secretion
  (d) Storage
  
  
• About 60% of adults are immune is disease:
  
  (a) Mumps
  (b) Measles
  (c) Influenza
  (d) Polia
  
  
• Cell wall is absent is:
  
  (a) E.coli
  (b) Mycoplasma
  (c) Vibrio IR
  (d) Spirochete

SAHIWAL BOARD
BIOLOGY
(Session: 2015)
INTER
(Part-I)
New Scheme
Time: 2.45 hlours
(SUBJECTIVE)
Marks: 83
SECTION-1

2. Write short answers to any eight parts (2*8=16)

• Write short answers to any eight parts:
• Differentiate between organelles and organ.
• Define scientific law. Give two examples.
• Sketch structure of lecithin.
• Give role and examples of enzymes activator.
• What is enzye to enzyme chain?
• Define koshland model of enzyme action.
• Define capsid.
• What is plasmid? Give its significance.
• What is nuclear mitosis?
• Define hyphare. Give their two types.
• What is alternation of generations? Give its significance.
• Differentiate between antheridiophores and archegonisphores.

3. Write short answers to any eight questions: (2*8=16)

• What are plastids? Give functions of one of them.
• Define storage disease.
• Why kingdom protista is regarded as a plyphylatic group of organism?
• What is the importance of any two algae?
• Write a note on choanolflagelates.
• Name any four phylum of protoctista.
• What are coral reefs?
• Differentiate between polyp and medusa.
• Name two classes of arthropods.
• What do you mean by infestation and disinfestations?
• What is compensation point?
• Name the most common fuel used by the cell to provide energy by cellular respiration.

4. Write short answers to any six questions. (2*6=12)

• Discuss parasitic nutrition in plants.
• What is macrophagous feedings?
• What is heart urn or pyrosis?
• In what ways is air a better respiratory medium than water?
• Name properties of respiratory surfaces in animals.
• Discuss respiratory mechanism in cockroach.
• What is diving reflex? How is it generated.
• Define water potential.
• What are lymph nodes? What is their function?

SECTION-II
Note: Attempt any three Questions.

Question#5
(a) Explain protection and conservation of environment.
(b) Write any four economic gains due to fungi.

Question#6
(a) Describe the structure and functions of chloroplast.
(b) Describe chemiosmosis in detail.

Question#7
(a) What is hepatistis? Enlist the symptoms and discuss its different types in detail.
(b) Write notes on the following.

• obesity
• Bulimia nervosa

Question#8
(a) Discuss water as medium of life. Also give its importance.
(b) Discuss at least four steps leading to the evolution of seed habit.

Question#9
(a) Give nutrition in bacteria,
(b) Describe various functions of blood.