Biology(New Scheme) Lahore Board 2013 Inter Part II Group I
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.

• The vesicle forming phragmoplast originate during:
  
  (a) Prophase
  (b) Interphase
  (c) Metaphase
  (d) Telophase
  
  
• The armored mammal that live only in America is:
  
  (a) Enchidna
  (b) Pangolin
  (c) Procupine
  (d) Armadillo
  
  
• The problem in which contraction of entire muscle take place and in lasts for just a few seconds to several hours is:
  
  (a) Tetanus
  (b) Tetany
  (c) Cramp
  (d) Muscle fatigue
  
  
• The succession on pond is called:
  
  (a) Derosere
  (b) Xerosere
  (c) Hydrosere
  (d) Mesosere
  
  
• Which cells secrete testosterone?
  
  (a) Prostrate gland
  (b) Seminal vesicle
  (c) Interstitial cells
  (d) Follicle cells
  
  
• Drifting of floating micro scoping animals and plants are called
  
  (a) Plankton
  (b) Cyanobacteria
  (c) Fungi
  (d) Mammals
  
  
• The small number of α cells in pancreas secrete:
  
  (a) Insulin
  (b) Glucagon
  (c ) Antidiuretic hormone (ADH)
  (d) Water
  
  
• Which part of brain monitor the body tempereture:
  
  (a) Thalamus
  (b) Pons
  (c ) hypothalamus
  (d) Amygdala
  
  
• About 50% cases of MODY are caused by mutations in:
  
  
• (a) Kinase gene
  (b) Galatoxinase gene
  (c ) Glucokinase gene
  (d) Proteinase
  
  
• children which serve combined immunodeficiency syndrome (SCID) lack enzyme :
  
  (a) Adenosine deaminase
  (b) LH
  (c )FSH
  (d) Vasopressin
  
  
• At the cephalic end of primitive streak, closely packed cells from local thickening known as:
  
  (a) Primitive guts
  (b) Primitive ridges
  (c ) Hansen’s node
  (d) Splanchnic mesoderm
  
  
• The joint that allows the movement in two directions:
  
  (a) Hinge joint
  (b) Ball and socket joint
  (c ) Cartilaginous joint
  (d) Fibrous joint
  
  
• Which hormone is necessary for ‘fruit set’:
  
  (a) Auxins
  (b) Gibberellins
  (c ) Cytokinins
  (d) Enthene
  
  
• Lack of vasopressin hormone causes:
  
  (a) Diabetes mellitus
  (b) Diabetes insipidus
  (c ) Parkinson’s Disease
  (d) Addison’s Disease
  
  
• After every 200 nucleotide the DNA duplex is coiled around a core of eight histone protein forming a complex known as:
  
  (a)Polysome
  (b) Nucleosome
  (c ) Hetrochromatin
  (d) Euchromatin
  
  
• Stone monuments are being eroded due to stone cancer by:
  
  (a) Green house effect
  (b) Acid rain
  (c ) Ozone depletion
  (d) Global warming
  
  
• Metabolism of purine and pyrimidine produces significance amount of
  
  (a) Creatinine
  (b) Creatine
  (c ) Xanthine
  (d) Trimethy lamine oxide

Biology(New Scheme) Lahore Board 2013 Inter Part II Group I

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

• Define homeostasis. Give its importance.
• Explain the process of panting with example.
• What is ADH and how does it function?
• Discuss two main types of cartilage.
• Differentiate between passive flight and active flight.
• What is Rickets? Give its cause and cure.
• What is Gastrin and Secretin?
• Write symptoms of Alzheimer’s disease.
• Give the names of four factors affecting gene frequency.
• Define Hardy Weinberg Theorem and give its equation in the form if binomial expansion.
• Differentiate between Autecology and Syencology.
• Define commensalism with the help of an example.

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

• Differentiate between identical twins and fraternal twins.
• Name the types of plants according to photoperiodism.
• Write down at least two important measure to prevent AIDS.
• What is primary organizer and inducer substances.
• Define gastrulation in chicks.
• Define meristem, name its types on the basis of position.
• What is phosphodiester linkage? Draw structural formula.
• Differentiate between chromosomal aberration and point mutation.
• What is effect of human impact on Tundra Ecosystem?
• Characterize littoral zone of fresh water lakes.
• What is Acid Rain?
• What are renewable resources? Give an example.

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

• What is metastasis and its importance?
• What happens metaphase I?
• How Turner’s syndrome is caused and give its features?
• What is pleiotropy and its example?
• What are linkage groups and give their number in human beings?
• What are compound sex chromosomes and their example?
• Mention the role of Lambda phage during recomninant DNA technology.
• What us role of suicide gene in transgenic bacteria?
• What is Biodegradable Palstic and its origin?

(SECTION-II)
Q10: Give answer of any THREE questions.
Question#5:
(a) What is excretion? How do plants excrete their wastes? 4
(b) Describe Watson-Crick Model of DNA in detail. 4

Question#5:
(a) Explain about the exoskeleton in Arthropods. 4
(b) describe about the interphase of cell cycle. 4

Question#5:
(a) Describe role of Abscisic Acid and ethane in plant growth. 4
(b) What is Epistasis? Explain it with example of Bombay Phenotype. 4

Question#5:
(a) Write a short note on “Tissue culturing and cloning”. 4
(b) Explain “Deforestation and Afforestation. 4

Question#5:
(a) What is Aging? Explain its process. 4
(b) Write a note on “ Tundra Ecosystem”. 4

Biology(New Scheme) Lahore Board 2013 Inter Part II Group 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.

• The syndrome having trisomy of chromosome number 18 is:
  
  (a) Down’s
  (b) Patau’s
  (c) Edwards
  (d) Jacob’s
  
  
• Respiratory protein found in all aerobic species is:
  
  (a) Cytochrome a
  (b) Cytochrome b
  (c) Cytochrome c
  (d) Cytochrome a₃
  
  
• number if cervical vertebrae in a male camel (Mammal) :
  
  (a) 7
  (b) 11
  (c) No definite number
  (d) Varied with the size of neck
  
  
• Succession starts on dry soil is called:
  
  (a) Hydrosere
  (b) Xerosere
  (c) Derosere
  (d) Desertification
  
  
• Which one is a haploid cell:
  
  (a) Oogonia
  (b) primary oocyte
  (c) Secondary oocyte
  (d) Zygote
  
  
• Which one is a plant of a desert?
  
  (a) Pinus
  (b) dwarf Willow
  (c) Rose
  (d) Cactus
  
  
• Which hormone is chemically a steroid?
  
  (a) ADH
  (b) Cortisone
  (c ) Thyroxine
  (d) Insulin
  
  
• Which one is the following is heterotherm?
  
  (a) Bat
  (b) Frog
  (c ) Snake
  (d) Man
  
  
• Drosophila males for eye color are :
  
  (a) Homozygous
  (b) Hetrozygous
  (c ) Hemizygous
  (d) None of these
  
  
• Aspartame is a:
  
  (a) Dipeptide
  (b) Tripeptide
  (c ) Pentapeptide
  (d) Polypeptide
  
  
• Yellow sytoplasm of ascidian zygote gives rise to:
  
  (a) Muscle cells
  (b) Gut
  (c) Neural tube
  (d) larval epidermis
  
  
• Bone to bone attachment is by:
  
  (a) Tendon
  (b) Nerves
  (c ) Muscles
  (d) Ligament
  
  
• Hormone absent in developing seed:
  
  (a) Auxines
  (b) Gibberellins
  (c ) Cytokinins
  (d) Ethene
  
  
• The Hormone promotes closing of stomata:
  
  (a) Auxines
  (b) Gibberellins
  (c ) Abscisic acid
  (d) Cytokinins 
  
  
• Amino acid attachment site of tRNA is:
  
  (a) G-end
  (b) 2’-end
  (c ) 3’-end
  (d)5’-end
  
  
• Disease caused by nutritional deficiency in man:
  
  (a) Cholera
  (b) Beriberi
  (c )Arthritis
  (d) Sugar
  
  
• Incidence of uric acid stone is:
  
  (a) 5%
  (b) 10 %
  (c ) 15%
  (d) 70%

Biology(New Scheme) Lahore Board 2013 Inter Part II Group I
Time: 3:10 Hours Paper Subjective Type Max. Marks:68

• Differentiate between ectotherms and endotherms.
• What are poikilotherms? Give one example.
• What are pyrogens?
• Explain two types of Nastic movement.
• Differentiate sclerechyma from colenchyma cells.
• What is herniation of disc?
• Explain the functions of two hormones secreted by Islets of Langerhans.
• What is habituation. Give an example.
• Explain Hardy-Weinberg theorem.
• Differentiate between homology and analogy.
• Define food chain and food web.
• Explain ecological Niche.

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

• What is Parthenocrapy and example?
• Give the differences between oviparous and viviparous animals.
• What is structure and function of corpus luteum?
• What is gastrocoele and from which germ layer it is originated?
• How final size of cells of cortex and tracheids do is attained in zone of maturation.
• Give the names of two sheets like layers into which mesoderm splits and name the cavity formed between these.
• What is Alkaptonuria and its cause?
• Give the role and kinds of tRNA.
• Give the Layering characteristics of Grassland.
• Mention the characteristic of plant life in desert ecosystem.
• What are solids waste and how these can be used as source of energy?
• What do you mean by population explosion and give its two causes.

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

• What is mitotic apparatus? Give its function. give event of Zygotene.
• Give two main importance of meiosis.
• What is test cross? Give its uses.
• What are sex limited traits.
• Define crossing over. What is its importance?
• What are palindromic sequences?
• Define genome and genomic library.
• What are the uses of PCR amplification and analysis?

(SECTION-II)
Q10: Give answer of any THREE questions.
Question#5:
(a) Describe the process of excretion in plants. 4
(b) Describe how Hershey and Chase prove that DNA is the heredity material.4

Question#6:
(a) Define and explain briefly the fibrous, cartilaginous and synovial joints. 4
(b) Define non-disjunction and discuss its effects with one example. 4

Question#7:
(a) Discuss the nervous system of hydra. 4
(b) What is incomplete dominance? Explain it with an example. 4

Question#8:
(a) Explain the process of birth in human. 4
(b) Discuss greenhouse effect in detail. 4

Question#5:
a) Define abnormal development. Explain different factors causing Abnormalities.
(b) Define hydrospheric ecosystem. Explain some common features of aquatic or hydrospheric ecosystem.