Biology (New Scheme)
Gujranwala Board 2015
Inter Part II
Time: 20 Minutes
Paper II
Max. Marks: 17
Objective Type
Note:You have four choices for each objective type question asA, 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. Attempt as many questions as given in objective type question paper and leave others blank.

• Fruit development without fertilization is ------------------
  
  (a) Dormancy
  (b) climacteric
  (c) Parthenocarpy
  (d) parthenogenesis
  
  
• Unlike most proteins, histones are-----------------------
  
  (a) positively charged
  (b) negatively charged
  (c) neutral
  (d) discharged
  
  Thesteady internal state of homeostasis is known 6s:------------
  
  (a) Disorder
  (b) disease
  (c) Normal healthy
  (d) abnormal health
  
  
• The more concentrated external 'environment is termed as: -------------
  
  (a) Hypotonic
  (b) hypertonic
  (c) Isotonic
  (d) osmotic
  
  
• In each case succession is initiated by a few hardy invaders called: ----------
  
  (a) Starters
  (b) pioneers
  (c) Climax community
  (d) decomposers
  
  Bowed legs and deformed pelvis are the symptoms of which disease in children? ---------------- .
  
   (a) Rickets
  (b) disc slip
  (c) Sciatica
  (d) haematoma
  
  
• EcoRl, is a commonly used: ------------------
  
  (a) Gene
  (b) restriction enzyme
  (c) Bacteriophage
  (d) bacteria
  
  
• The microtubules are composed of a protein tubulin andtraces of-------------
  
   (a) DNA
  (b) RNA
  (c) Lipids
  (d) Terpenoids
  
  
• Which is a long day plant?--------------
  
  (a) cucumber
  (b) henbane
  (c) sitabean
  (d) strawberry
  
  
• Which is the end of muscle which remains fixed when the muscle contracts? -------
  
  (a) Insertion
  (b) origin
  (c) Tendon
  (d) belly
  
  
• Which one is not a mesophyte? -------------------
  
  (a) brassica
  (b) rose
  (c) Mango
  (d) cacti,
  
  
• Temperate deciduous forests are located in Pakistan at -----------
  
  (a) Shogra
  (b) Chilas 
  (c) Mianwali
  (d) Sind
  
  
• Zoos and botanical gardens are to save species whoseextinction is-----------
  
  (a) Permanent
  (b) dominant
  (c) Imminent
  (d) prominent
  
  
• The cerebrospinal fluid (CSF) is similar in composition to: ---------------
  
  (a) Blood
  (b) blood plasma I
  (c) Blood serum
  (d) blood proteins."

• Tissue culture and cloning seek help through: -------------
  
  (a)mitosis
  (b)blood plasma
  (c) meiosis
  (d) karyokinesis
  
  
• During elongation the cell volume increases up to:
  
  (a) 50 fold
  (b) 100 fold
  (c) 150 fold
  (d) 200 fold
  
  
• The position of a gene on the chromosome is called its-------
  
  (a) allel
  (b)phenotype
  (c) locus
  (d) genotype

Biology (New Scheme)
Gujranwala Board 2015
Inter Part II
Time: 3:10 Hours
Paper II
Max. Marks: 83 
Note: Section I is compulsory. Attempt any three (3) questions from Section II and any three (3) parts from Section III
(Section I)

Q2. Write short answers to any,EIGHT questions: (2x8=16)

• What is tetrad?
• Describe non-disjunction,
• What are hydrothermal vents?
• Differentiate between natural selection and artificial selection.
• Differentiate between growth and development.
• What is discoidal cleavage?
• What is metanephridium?
•  Sketch urea cycle.
• What is counter-current multiplier?
• Differentiate between photonasty and thermonasty.
• Name unpaired bones of cranium,
• What is "Ball and Socket Joint"?

Q3. Write short answers to any EIGHT questions: (2x8=16)

• What is meant by division of labour?
• Differentiate between auxons and dendrites,
• What are commercial 'applications of ethene? Quote any two,
• Differentiate between tissue culture and cloning.
• What is seed dormancy?
• What is syphilis?
• Differentiate between genome and probe.
• Define biotechnology. What are transgenic organisms?
• Differentiate between limnetic zone and proftuidal zone.
• What is layering? Give one example.
• What is meant by fossil fuels?
• What is acid rain?

Q4.Write short answers to any SIX questions: (2x6=12)

• Differentiate between chromosome and nucleosome,
• What is genetic code? Quote one example.
• Differentiate between translation and transcription.
• Differentiate between phenotype and genotype,
• What is incomplete dominance?
• What is erythroblastosis foelalis?
• Differentiate between ectoparasite and endoparasite.
• What is symbiosis? Give one example,
• What are lichens? Give one example.

(Section II)

Q5. (a) Describe osmoregulation in plants. (4)

(b) Describe water and land as renewable resources. (4)

Q6. (a) Give sliding filament model for muscle contraction. (4)

(b) Explain Darwin's Theory of Natural Selection. (4)

Q7 (a) Describe the functions of the thyroid gland. (4)

(b) Explain the biotic components of an ecosystem. (4)

Q8 (a)- Discuss the role of phytochromes in uriderstanding the Mechanism of photoperiodism. (4)

(b) Discuss the process of initiation of translation along charging or tRNA. (4)

Q9. (a) Describe the process of aging. (4)

(b) Discuss the genetics of colour blindness. (4)

Q10. (a) Sketch and label the nervous system of cockroach (5)

(b) Sketch and label the hind-limb of frog. (5)

(c) Write down an experiment to demonstrate geotropism. (5)

(d) Determine water content of soil. (5)

(e)

• What is habitat?
• What are xerophytes?
• Define osmoregulation.
• Define mitotic apparatus.
• What are consumers?