Biology(New Scheme) Gujranwala Board 2013 Inter Part II
Time: 20 Minute Paper Objective Type Max. Marks:17
Note: You have four choices 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 question paper and leave others blank.

• Most land mammals respond to cold by raising their:
  
  (a) tail
  (b) head
  (c) legs
  (d) furs
  
  
• Flame cells are part of excretory system of:
  
  (a) Cockroach
  (b) Paralysis
  (c) Hydra
  (d) Tetanus
  
  
• A disease caused by low calcium in the blood is called:
  
  (a) Cramp
  (b) Paralysis
  (c) Tetany
  (d) tetanus
  
  
• In old tress, the active conducting portion of the wood is called:
  
  (a) sap wood
  (b) heart wood
  (c)ceder wood
  (d) cork
  
  
• Nociceptors produce the sensation of:
  
  (a) Touch
  (b) Pain
  (c) Warmth
  (d) Pressure
  
  
• Abscisic acid can be sprayed on tree crops to regulate:
  
  (a) Leaf drop
  (b) Shoot drop
  (c ) cone drop
  (d) Fruit drop
  
  
• the duration of low temperature (chilling) treatment varies from:
  
  (a) 4 days to 2 months
  (b) 4 days to 3 months
  (c ) 2 days to 3 months
  (d) 5 days to 5 months
  
  
• During delivery in human, the average loss of blood is about:
  
  (a) 150 cm³
  (b) 250 cm³
  (c ) 350 cm³
  (d) 450 cm³
  
  
• Grey vegetal cytoplasma gives rise to:
  
  (a) Gut
  (b) Muscle cells
  (c ) Notochord
  (d) Neural tube
  
  
• Every gene starts with initation codon AUG which normally encodes the amino acid:
  
  (a) Agrinine
  (b) Citulline
  (c ) Lysine
  (d) Methionine
  
  
• In the case of human cells, cell cycle duration is about:
  
  (a) 24 hours
  (b) 23 hours
  (c ) 22 hours
  (d) 21 hours
  
  
• A gamete without sex chromosome is called:
  
  (a)Autogamate
  (b) Gemete
  (c ) Nullo gemete
  (d) Sex-gemete
  
  
• Cell suspension cultures of digitalis produce:
  
  (a) Anti-Toxin
  (b) Digitoxin
  (c ) Polludrin
  (d) Quinine
  
  
• Acquired characteristic of an individual cannot be:
  
  (a) Inherited
  (b) Flourished
  (c ) Lost
  (d) Migrated
  
  
• Primary succession, which starts in a pond ecosystem is termed as:
  
  (a) Ecosphere
  (b) Derosere
  (c ) Hydrosere
  (d) Xerosere
  
  
• Coniferous forests of high altitude are called:
  
  (a) Alpine
  (b) Arctic
  (c )Boreal
  (d) Tundra
  
  
• The ozone layer has developed a hole over the:
  
  (a) Arctica
  (b) Equator
  (c ) Anarctica
  (d) Tropics

Biology(New Scheme) Gujranwals Board 2013 Inter Part II
Time: 3:10 Hours Paper Subjective Type Max. Marks:68
Note: Section I is compulsory. Attempt ant three (3) questions from Section II
Q2. Write short answers to any EIGHT questions: (2x8=16)

• What is uremia?
• Define homeotherms.
• What is lithotripsy?
• Differentiate between primary and secondary growth in plants.
• Define geotropism.
• Differentiate between hyaline cartilage and fibro cartilage.
• What are calluses?
• Define ‘Nissl’s Granules’.
• What is gene therapy?
• Define ‘Genetic Engineering’.
• Define ‘Genetic Drift’?
• Define ‘Theory of Special Creation’.

Q3: Write short answers to any EIGHT (8) questions: (2x8=16)

• What is genital herpes?
• Differentiate between short day plants and long day plants.
• What is corpus luteum? Give its function.
• Define regeneration with examples.
• Differentiate between growth and development.
• Define Teratology. What are Teratogens?
• What is heterochromatin and euchromatin?
• What are Okazaki fragments? Also give their length .
• Write about limnetic zone.
• What type of plant life is present in desert ecosystem?
• What do you know about ozone layer?
• Give at least four ways to conserve energy.

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

• Give two importance of mitosis.
• Define product rule.
• In birds, the female is heterogametic. How?
• How blood pressure is a multifactorial trait?
• Write at least three characters of cancer cells.
• Give two uses of DNA finger printing.
• Differentiate between Sanger’s method and Maxam-Gilbert method of Gene Sequencing.
• What is aspartame?
• Assign the sex of the human having XO, XXX, XXY and XYY chromosomes.

SECTION-II)
Q10: Give answer of any THREE questions.
Question#5
(a) Explain the adaptations in plants to low and high temperature. 4
(b)Describe the chemical composition of chromosome. 4

Question#5
(a) Describe locomotion in paramecium. 4
(b) What is meiosis? Elaborate the events of prophase-I . 4

Question#5
(a) How does nerve impulse pass from one neuron to another neuron? Explain? 4
(b) Compare chromosomal determination of sex in drosophila and humans. 4

Question#5
(a) Describe the human male reproductive system. 4
(b) Explain Green-house Effect. 4

Question#5
(a) What is regeneration? Explain the process of regeneration in animals. 4
(b) Discuss Grassland Ecosystem. 4