Inter (Part-I)
Lahore Board 2012
BIOLOGY PAPER: I
Time: 20 Minutes
(OBJECTIVE TYPE)
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 circles will result in zero mark in that question. Write the letter A, B, C or D in the column (write correct option) against each question also If there is a contraction in the bubble and hand written answer, bubble option will be considered correct.

Question#1

• Which one of the following is used for lowering blood cholesterol:
  
  (A) Griseofulvin
  (B) Penicillin
  (C) Cyclosporine
  (D) Lovastatin
  
  
• Which one of following is included in tunicates:
  
  (A) Amphioxus
  (B) Molgula /AF
  (C) Balanoglossus
  (D) Saccoglossus
  
  
• Which one of following is not a carnivores:
  
  (A) Cat
  (B) Dog
  (C) Lion
  (D) Deer
  
  
• Which one of the following is not a polysaccharide
  
  (A) Glycogen
  (B) Lactose
  (C) Starch
  (D) Dextrin
  
  
• Which one of the following is not a ciliate.
  
  (A) Paramecium
  (B) Vorticella
  (C) Trypanosome
  (D) Stentor
  
  
• Common name for ancylostoma duodenale is called:
  
  (A) Hook worm
  (B) Pin worm
  (C) Tape worm
  (D) Earthworm
  
  
• If non-protein part is covalently bounded to enzyme it is called as:
  
  (A) Co-enzyme
  (B) Prosthetic group
  (C) Activator
  (D) Apoenzym2
  
  
• Arachis hypoge4loelongs to family:
  
  (A) Rosaceae
  (B) Solanaceae
  (C) fabaceae
  (D) Caesalpiniamae
  
  
• Disorder in which haemoglobin molecule have F. chain instead of B. chain is known as:
  
  (A) Thalassaemia
  (B) Leucaemia
  (C) Oedema
  (D) Emphysema
  
  
• In prokaryotic cell wall strengthening material is:
  
  (A) Chitin
  (B) Lignin
  (C) Cutin
  (D) Murein
  
  
• Which one of the following animal has dosed blood circulatory system:
  
  (A) Snail
  (B) Octopus
  (C) Insect
  (D) Spicier
  
  
• Twort in 1915 and D' Herelie in 1917 discovered:
  
  (A) Pox virus
  (B) Adeno virus
  (C) Bacteriophages
  (D) Herpes virus
  
  
• Light wavelength least absorbed by chlorophylis is.
  
  (A) Violet
  (B) Blue
  (C) Yellow
  (D) Orange
  
  
• Tentative explanation of observation is called as
  
  (A) Hypothesis
  (B) Deduction
  (C) Law
  (D) Theory
  
  
• Which one of following is not extinct:
  
  (A) Horneophyton
  (B) Psilotum
  (C) Psilophyton
  (D) Cooksonia
  
  
• During photorespiration glycine after its formation diffuses into:
  
  (A) Ribosome
  (B) Mitochondria 1
  (C) Peroxisome
  (D) Glyoxysome
  
  
• Which one of following is a microaerophilic bacterium:
  
  (A) Campylobacter
  (B) Pseudomonas
  (C) Spirochete
  (D) E. Coll

Inter (Part-I)
Lahore Board 2012
BIOLOGY PAPER: I
Time: 2:40 Hours
(SUBJECTIVE TYPE)
Marks: 68

2. Write Short answers to any Eight Questions. 16

• How and when a hypothesis becomes theory?
• What is hydroponic culture technique? Give its uses.
• Differentiate between amylase and amylopactin starches.
• How fibrous proteins differ from globular proteins?
• Distinguish between cenocytic and septate hypae.
• Compare obligate parasite with facultative parasite.
• How overtopping an webbing occurred in the evolution of leaf?
• Differentiate between monocots and dicots in arrangement of vascular tissues.
• In what ways sporophyte of bryophyte andtraceophyte are different?
• What do you know about hunger pang in human?
• How constipation and diarrhoea are caused?
• How sundew (Drosera) show its insectivorous activity?

3. Write Short answers to any Eight Questions. 16

• Who stated “omnis cellula e cellula”? what does it mean?
• Define resolution of eye.
• What do you know about multicellular reducers?
• Define Venome.
• Define facilitated diffusion and quote one example.
• Explain briefly pox viruses.
• How respiration takes place through cork tissues?
• What is operculum.
• Define apoplaslic pathway.
• What are pocks?
• Define Imbibition.
• What do you know about Guttation?

4. Write Short answers to any SIX Questions. 12

• Differentiate between enzyme end coenzyme.
• What Is Gram Positive Bacteria?
• Define Nucleoid.
• What as causes of asthma?
• What are functional unit of lungs?
• Define diffusion.
• What is Plasmolysis
• Differentiate between cohesion and adhesion.
• Define Stomata transpiration.

SECTION-II

Question#5
(a) Compare monosaccharides with oligosaccharides. 04
(b) Describe structure of virus. 04

Question#6
(a) Describe characteristic of Nostoc. 04
(b) Explain taxonomic status of fungi.

Question#7
(a) Write a note on lysosomes. 04
(b) How infux of K⁺ ions explain the opening and closing of stomata? 04

Question#8
(a) What is transpiration? Describe its different types. 08