Biology(New Scheme) Lahore Board 2013 Inter Part I 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 ecologically very important bio-indicator of air pollution are:
  
  (a) Lichen
  (b) Mycorrhiyzae
  (c) Yeast
  (d) Viruses
  
  
• A substance produce by basophils that inhabits blood clotting is:
  
  (a) Fibrinogen
  (b) Heparin
  (c) Histamine
  (d) Globulin
  
  
• Plastocyanin protine contains:
  
  (a) Iron
  (b) Copper
  (c) Magnesium
  (d) Potassium
  
  
• Keratin is an example of fibrous proteins present in:
  
  (a) Blood
  (b) Muscle
  (c) Bones
  (d) Nail and hair
  
  

• Mosquitoes infect plasmodium to human in the form of:
  
  (a) Cysts
  (b) Sporozoites
  (c) Merozoites
  (d) Gametocytes
  
  
• The blood cavity of Nematoda is:
  
  (a) Blastocoel
  (b) Pseudocoelom
  (c ) Haemocoelom
  (d) Coelom

• An activated enzyme consisting of polypeptide chain and co-factor is called:
  
  (a) Apoenzyme
  (b) Activator
  (c ) Holoenzyme
  (d) Inhabitor
  
  
• The plasma proteins constitute percent by weight of plasma:
  
  (a) 7-9
  (b) 9-11
  (c ) 11-3
  (d) 13-15
  
  
• In earthworm exchange of gases mainly occurs through:
  
  (a) Gills
  (b) Lungs
  (c ) Skin
  (d) Ostia
  
  
• Tay-Sach’s disease result due to accumulation of:
  
  (a) Lipids
  (b) Proteins
  (c ) Glucose
  (d) DNA
  
  
• In root nodules bacteria convert nitrogen into:
  
  (a) Ammonia
  (b) Nitrate
  (c ) Urea
  (d) Nitrite
  
  
• The phase of rapid growth in bacteria is called:
  
  (a) Lag
  (b) Log
  (c ) Stationary
  (d) Death
  
  
• Example of placental mammal is:
  
  (a) Dolphin
  (b) Kangaroo
  (c ) Echidna
  (d) Opossum
  
  
• Milk and milk product are preserved by:
  
  (a) Pasteurization
  (b) Vaccination
  (c ) Immunization
  (d) Cloning
  
  
• The first complete seed plant appeared in the period:
  
  (a) Late Devonian
  (b) Cambrian
  (c ) Permian
  (d) Jurassic
  
  
• The breaking of the terminal phosphate of ATP release energy:
  
  (a) 7.3 Cal
  (b) 7.3J
  (c ) 7.3 K. Cal
  (d) 7.3\Vatt
  
  
• Bacteriophage replicates only in cell:
  
  (a) Animal
  (b) Plant
  (c ) Bacteria
  (d) Fungal 

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

• Differentiate between chemotherapy and gene therapy.
• Differentiate between population and community.
• Draw peptide linkage between glycine and alanine.
• What do you mean by induce fit model of enzyme action?
• Differentiate between apoenzyme and holoenzyme.
• Write down four characteristics of enzyme.
• Define polymorphisma.
• Differentiate between parazoa and eumetazoa.
• Write down two characteristics of amphibians.
• Write down two characteristics of osteichthyes.
• Differentiate between pulmoronay circulation and systemic circulation.
• What are blue babies?

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

• What are saprophytic bacteria?
• What do you know about gaint amoeba?
• What is chlorella?
• What is conjugation?
• Give any two points for the importance of algae.
• Define the term alternation of generation.
• Give literal meanings of terms gymnospermae and angiosperms.
• What is meant by action spectrum?
• What is stroma?
• Define the term heterotrophic.
• What is botulism? Name the bacterium which causes this disease.
• Define the term omnivores with two examples.

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

• What is meant by cell fractionation?
• Differentiate between chromoplasts and leucoplasts.
• What is reverse transcription?
• What is photorespiration?
• How histoplasmosis and what is is its cause?
• How the concentration of CO₂ affects the capacity of haemoglobin to combine with O₂?
• Write two difference between spores and conidia.
• What is respiratory distress syndrome?
• How the volume of chest cavity is reduced during expiration?

(SECTION-II)
Note: Attempt any THREE questions.

Question#Q5:
(a) Write a note on Cloning. 4
(b) Draw and explain the life cycle of rhizopus. 4

Question#Q6
(a) What are Polysaccharides? Describe different types. 4
(b) Sketch and describe the metabolic pathway of glycolysis. 4

Question#Q7:
(a) Discuss any four methods of nutrition in animals. 4
(b) Write down the structure and functions of mitochondria. 4

Question#Q8:
(a) Explain about “Use and misuse of Antibiotics”. 4
(b) Explain life cycle of an angiospermic plant. 4

Question#Q9:
(a) Write a note on hepatitis. 4
(b) Discuss transpiration as necessary evil. 4

(SECTION-III Practical)
Q10: Give answer of any FOUR questions. (2x4=8)

(A)(a): You are providing with egg albumin and Milon’s reagent. Write biochemical test for the substance which egg contains. 3
(b): Define proteins. Give two functions of proteins. 2
(B)(a): you are providing with flowers of Lathyrus odoratus. Describe in technical terms its parts (i) Calyx (ii) Corolla (iii) Androecium. 3
(b): Differentiate between complete and incomplete flowers. 2
(C) Sketch and label the diagram of digestive system of cockroach. 5
(D) (a): Write down the procedure of the investigation of effect of temperature an activity of Enzyme (pepsin). 3
(b): Define pH. What does this abbreviation stands for? 2
(E) You are provided following specimen. Give one character for each to identify:
(i) Euglena (ii) Yeast (iii) Machanita (vi) Adiantum. (v) Dicotstem.

Biology(New Scheme) Lahore Board 2013 Inter Part I 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 number of chloroplast in each mesophyll cell is about:
  
  (a) 10-100
  (b) 10-200
  (c) 20-100
  (d) 20-200
  
  
• The human stomach is situated below the:
  
  (a)Diaphragm
  (b) Liver
  (c) Kidneys
  (d) Spleen
  
  
• Chitin is found in the cell wall of:
  
  (a) Algae
  (b) Bacteria
  (c) Fungi
  (d) Plants
  
  
• The numbers of airs sacs in birds are:
  
  (a) 6
  (b) 7
  (c) 8
  (d) 9
  
  
• The most common rust fungi are:
  
  (a) Ustilago
  (b) Puccinia
  (c) Penicillium
  (d) Yeast
  
  
• Guttation occurs in plants through:
  
  (a)Cuticle
  (b) Hydathodes
  (c )Lenticels
  (d) Stomach
  
  
• Which one of the following require low concentration of oxygen:
  
  (a) E.Coli
  (b) Spirochete
  (c ) Pseudomonas
  (d) campylobacter
  
  
• Which of the following atoms do not occur in carbohydrates?
  
  (a) Carbon
  (b) Hydrogen
  (c ) Oxygen
  (d) Nitrogen
  
  
• The dark reaction occurs in:
  
  (a) Cytoplasma
  (b) Chloroplast
  (c ) Stroma
  (d) Grana
  
  
• Metamerically segmented animals belong to:
  
  (a) Annelida
  (b) Cridaria
  (c ) Mollusca
  (d) Echinodermata
  
  
• Pulses producing plants belong to the family:
  
  (a) Rosaceae
  (b) Saloanaceae
  (c ) Fabaceae
  (d) Poaceae
  
  
• The optimum pH of pancreatic lipase is:
  
  (a) 6.0
  (b) 7.0
  (c ) 8.0
  (d) 9.0
  
  
• Sleeping sickness is spread by:
  
  (a) Tsetse fly
  (b) Trypanosoma
  (c ) Mosquito
  (d) Plasmodium
  
  
• Foot and mouth disease is caused by:
  
  (a) Algae
  (b) Bacteria
  (c ) Fungi
  (d) Virus
  
  
• Mammals have evolved from reptilian ancestor:
  
  (a) Archaeopteryx
  (b) Cotylosaurs
  (c ) Crocodile
  (d) Tuatra
  
  
• The volume of dry seed may increase up to 200 times by:
  
  (a) Diffusion
  (b) Osmosis
  (c ) Imbibition
  (d) Active transport
  
  
• The percentage of phosphorus in the human body is:
  
  (a) 1%
  (b) 2%
  (c ) 3%
  (d) 4%

Biology(New Scheme) Lahore Board 2013 Inter Part I Group II
Time: 3:10 Hours Paper Subjective Type Max. Marks:83
Note: Section I is compulsory. Attempt ant three (3) questions from Section II and any three (3) parts Section-I from Section III.
Q2. Write short answers to any EIGHT questions: (2x8=16)

• Define biosphere.
• Define chemotherapy. Mention its disadvantages.
• Write down general formula of amino acid.
• Define holoenzyme.
• State the effect of change in ph on activity of an enzyme.
• Differentiate between prosthetic group and co-enzyme.
• Describe briefly skeleton of sponges.
• What are gemmules and give their functions?
• Write down two adaptations for parasitic mode of life in platyheminthes.
• Describe briefly two harmful insects.
• Define active immunity.
• State the name of two types of leucocytes.

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

• Write down functions of cell wall and flagella in bacteria cell.
• Write down similarities and difference between fungi and fungus like protists.
• Write down two characteristic of apicomplexans.
• Write down two benefits each of algae and fungi.
• Write down two characteristic of ciliates.
• What advance characters are found in the sporophyte of anthoceroprida?
• Enlist botanical names of four genra of family poaceae.
• Define chemiosmosis.
• Differentiate between alcoholic fermentation and lactic acid fermentation?
• What is dyspepsia?
• Differentiate between secretin and gastrin.
• What are ingredients of gastric juice?

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

• Give the functional difference between sclerenchymatous and Paraenchymatous cells.
• What is differently permeable membrane?
• What is binomial nomenclature?
• Differentiate between Lichens and Mycorrhizae.
• What do you know about the term Haustoria?
• What is Operculum?
• Define the term photorespiration.
• What is coetaneous respiration?
• What do you know about diving reflex?

(SECTION-II)
Q10: Give answer of any THREE questions.

Question#5
(a) Describe biological organization at organ and system level 4
(b) Write a note on cytoskeleton. 4

Question#6
(a) Explain different type of RNAs. 4
(b) List functions of blood (any eight). 4

Question#7
(a) Describe Linnaeus System of Binomial Nomenclature in detail. 4
(b) describe life cycle of loose smut of wheat with the help of diagram. 4

Question#8
(a) discuss mutrition in bacteria. 4
(b) Describe cyclic phosphory lation with the help of a diagram. 4

Question#9
(a) Describe the role pancreas and liver in food digestion in human. 4
(b) Describe different steps involved in the evolution of Megaphyll. 4

(SECTION-III Practical)
Question#10:
(a): You are providing with egg albumin and Milon’s reagent. Write biochemical test for the substance which egg contains. 3
(b): Name the reagents used to detect reducing sugars and starch. 2
(A)(a): you are providing with flowers ofsolanum nigrum. Describe in technical terms its parts (i) Calyx (ii) Androecium. (iii) Gynoecium. 3
(b): Differentiate between complete and incomplete flowers. 2
(C) Sketch and label the diagram of digestive system of cockroach. 5
(D) (a): Write down the procedure to study the effect of temperature an activity of Enzyme (pepsin). 3
(b): What is the difference between enzyme and substrate? 2
(E) You are provided following specimen. Give one character for each to identify:
(i) Chlorella (ii) Amoeba (iii) Male Marchentia (vi) Euglena. (v) T.S of Dicot stem.