Lahore Board 2017
Biology Part – I
Time: 20 Minutes 
Marks: 17
GROUP 1

Note: Write answers to the questions on the objective answer sheet provided. Four possible answers A, B, C and D to each question are given. Which answer you consider correct, fill the corresponding circle  A, B, C and D given in front of each question with Marker or pen ink on the answer sheet provided.

• The animal with exceptionally large brain is:
  

(A) Star fish
(B) Octopus
(C) Snail
(D) Sepia

• Tentacles is a characteristic of:
  

(A) Hydra
(B) Snail
(C) Amoeba
(D) Euglena

• The resolution of human naked eye is:
  
  (A) 1.0 mm
  (B) 0.3 mm
  (C) 0.6 mm
  (D) 0.7 mm


• Spiracle are found in:
  
  (A) Fish
  (B) Cockroch
  (C) Leech
  (D) Earthowrm


• Lovastatin is used for lowering blood:
  
  (A) Pressure
  (B) Cholestrol
  (C) Glucose
  (D) Salts


• Single circuit circulation is found:
  
  (A) Man
  (B) Cat
  (C) Fish
  (D) Bird


• Bacteria without any flagella are:
  
  (A) Monotrichus
  (B) Atrichus
  (C) Lophotrichus
  (D) Amphitrichus


• S. The most abundant carbohydrate is:
  
  (A) Starch
  (B) Cellulose
  (C) Glucose
  (D) Maltose


• The hypothesis that plants split water as a source of hydrogen was given by:
  
  ( A ) Van Niel
  (B) Kreb
  (C) Calvin
  (D) Pasteur


• Photosynthetic prokaryotes lack:
  
  (A) Ribosomes
  (B) Cytoplasm
  (C) Chloroplasts
  (D) Cell membrane


• Tomato belongs to family:
  
  (A) Rocsaceae
  (B) Poaceae
  (C) Solanaceae
  (D) Fabaceae


• Induce fit model was proposed by:
  
  (A) Jenner
  (B) Pasteur
  (C) Koshland
  (D) Emil Fischer


• A unicellular, non motile green alga is:
  
  (A) Volvox
  (B) Ulva
  (C) Chlorella
  (D) Kelps


• Binomial nomenclature system was given by:
  
  (A) Pasteur
  (B) De Deane
  (C) Lamark
  (D) Linnaeup


• Sea anemone belongs to phylum:
  
  (A) Coelenterata
  (B) Arthropods
  (C) Echinodermata
  (D) Annelida


• Antiserum is a scrum containing:
  
  (A) Hormones
  (B) Antigen
  (C) Enzyme
  (D) Atibodies


• In human body amount of oxygen is: (A) 50% (B) 65%
  
  (A) 50%
  (B) 65%
  (C) 70%
  (D) 40%

SUBJECTIVE PART
SECTION B

                                                                
2- Write short answers of any eight parts from the following.

1. Show peptide bond between two amino acids.
   
2. Define apoenzyme and prosthetic group.
   
3. Differentiate between competitive and non-competitive inhibitors.
   
4. Differentiate between pepsin and pepsinogen.
   
5. What are conidia and spores?
   
6. Differentiate between plasmogamy and karyogamy. 
   
7. Differentiate between parazoa and eumeatazoa.
   
8. What is archaeopteryx? Give its two characters.
   
9. Give two examples of sponges.
   
10. Differentiate between polyps and medusase.
    
11. Define photosynthesis. Write its equation.
    
12. . Differentiate between antenna complex and reaction centre.

3- Write short answers of any eight parts from the following.

1. Differentiate between inductive and deductive reasoning.
   
2. Define phyletic lineage.
   
3. Give chemical composition of primary and secondary cell wall.
   
4. What are microfilaments? Give their functions.
   
5. How ciliates differ from other protozoans?
   
6. What are choanoflagellates?
   
7. Write down two characteristics of apicomplexans.
   
8. What do you know about giant amoeba?
   
9. Differentiate between bryophytes and tracheophytes.
   
10. Define double fertilization.
    
11. Differentiate between plasmolysis and deplasmolysis.
    
12. What are blue babies?

4- Write short answers of any six parts from the following.

1. What am prions?
   
2. Differentiate between tetrad and sarcina.
   
3. Define dyspepsia and also mention its characteristics.
   
4. Differentiate between appendix and appendicitis.
   
5. How trypsinogen is activated?
   
6. What are spiracles?
   
7. Enlist types of respiration in frog.
   
8. What is respiratory distress syndrome?
   
9. What changes occur in diving reflex?

Section –C

Note: Answer any three questions from the following.         

                                                                                                                       
5.(a) Discuss Biology in the serving of mankind in field of disease control.
(b) Soil water moves and reaches to xylem tissues by various pathways, explain.

6.(a) Explain polysaccharides with examples.
(b) Describe digestion in hydra.

7.(a) Explain the structure and functions of lysosomes.
(b) Write a note on Calvin Cycle.

8.(a) Explain lyric cycle of bacteriophage.
(b) Write a note on lycopsida.

9.(a) Discuss the use and misuse of antibiotics.
(b) Describe different methods of asexual reproduction found in fungi.

Lahore Board 2017
Biology  Part – I
Time: 20 Minutes  Marks: 17
GROUP 2
Note: Write answers to the questions on the objective answer sheet provided. Four possible answers A, B, C and D to each question are given. Which answer you consider correct, fill the corresponding circle  A, B, C and D given in front of each question with Marker or pen ink on the answer sheet provided.

• Organelle of symbiotic origin is
  
  (A) Mitochondria
  (B) Vacule
  (C) Ribosome
  (D) Golgi body


• Thvlakoid membranes are involved in ATP synthesis by
  
  (A) Glycolysis
  (B) Dark reaction
  (C) Chemiosmosis
  (D) Photo lysis

• Germ theory of disease was formulated by
  
  (A) Robert Koch
  (B) Louis Pasteur
  (C) Edward lent
  (D) Christian Gram

• Ancylostoma duodenale is commonly known as:
  
  (A) Flat worm
  (B) Tap worm
  (C) Hookworm
  (D) Fluke


• A group of similar cells that performs a specific function is called:
  
  (A) Organ
  (B) Tissue
  (C) Organelle
  ( D) Organ system


• Mosses belong to the subdivision
  
  (A) Hepaticopsida
  (B) Bryopsida
  (C) Anthoceropsida
  (D) Ascomycota


• In male human beings the amount of red blood cells per cubic millimeter is
  
  (A) 5-5 ½ million
  (B) 4-4 ½ million
  (C) 6-6 ½ million
  (D) 3-3 ½ million


• The partly digested food in cockroach is temporarily stored in
  
  (A) Crop
  (B) Gizzard
  (C) Rectum
  (D) Stomach


• Change in water potential of a system due to the presence of solute molecules is called
  
  (A) Pressure potential
  (B) Solute potential
  (C) Metric potential
  (D) Gravitational potential


• The specific heat of vaporization of water is:
  
  (A) 574 Kcal / kg
  (B) 374 Kcal/kg
  (C) 474 Kcal / kg
  (D) 674 Kcal /kg


• Rhizopus belongs to the phylum
  
  (A) Ascomycota
  (B) Basidiomycota
  (C) Zygomycota
  (D) Deuteromycota


• In the lungs of birds tiny thin walled ducts for constant ventilation are called
  
  (A) Gill rakers
  (B) Parabronchi
  (C) Larynx
  (D) Pharynx


• In phylum coelenterate special cells cnidocytes give rise to
  
  (A) Polyps
  (B) Nematocysts
  (C) Gastrozoids
  (D) Gemmules


• Energy poor inorganic oxidized compounds are reduced to energy rich carbohydrates during
  
  (A) Respiration
  (B) Photosynthesis
  (C) Development
  (D) Growth


• The percentage of lipids in plasma membrane is
  
  (A) 60- 80 %
  (B) 30-60%
  (C) 20-40%
  (D) 10-20%


• The feeding stage of a slime mold is called
  
  (A) Thallus
  (B) Hyphae
  (C) Mycelium
  (D) Plasmodium


• The vitamins are essential raw materials for the synthesis of
  
  (A) Coenzymes
  (B) Activators
  (C) Holoenzymes
  (D) Apoenzymes

SUBJECTIVE PART
SECTION B

                                                                       
2- Write short answers of any eight parts from the following.                                                                                                

1. What F.Sanger concluded about insulin?
   
2. Differentiate between prosthetic group and co-enzyme.
   
3. What do you mean by induce fit model of enzyme action?
   
4. Write down the effect of high temperature on an enzyme.
   
5. What is histoplasmosis? How does its infection spread?
   
6. Differentiate between septate and non-septate hyphae.
   
7. What is metameric segmentation? In which phylum is it present?
   
8. Differentiate between radial and bilateral symmetry.
   
9. What is metamorphosis?
   
10. Give three basic characteristics of chordates.
    
11. Give the function of spectrophotometer.
    
12. Define glycolysis. Where does it take place?
    

3- Write short answers of any eight parts from the following. 

1. Define bioelements. Give two examples.
   
2. Differentiate between deductive and inductive reasoning.
   
3. Define fluid mosaic model of cell membrane.
   
4. Write down the two functions of golgi complex.
   
5. What is chlorella? Give its importance.
   
6. How algae differ from plants?
   
7. What is giant amoeba?
   
8. Write down two characteristics of dinoflagellates.
   
9. Define cercinate vernation.
   
10. Define ovule and embryo sac.
    
11. What is humoral immune response?
    
12. Differentiate between thrombus and embolus.

4- Write short answers of any six parts from the following.

1. Define binomial nomenclature. Give an example.
   
2. Differentiate between lophotrichous and amphitrichous.
   
3. How diarrhea and constipation are caused?
   
4. Differentiate between ingestion and egestion.
   
5. What is heart bum or pyrosis?
   
6. How air is better respiratory medium than water?
   
7. What is asthma? Give its causes.
   
8. State myoglobin and its functions.
   
9. s Describe the CO₂ concentration in artery and venous blood of man.

Section –C
Note: Answer any three questions from the following.  

                                                                                                                                              
5.   (a) Write a comprehensive note on functions of blood.
(b) What is cloning? Discuss its methods and application.

6. (a) Discuss Watson and Crick model of DNA.
(b) Discuss the process of nutrition in insectivorous plants.

7. (a) What are lysosomes? Give their functions.
(b) Draw and label Z-scheme/non-cyclic phosphorylation.

8. (a) What is hepatitis? Give its symptoms and discuss its three common types.
(b) Describe life cycle of adiantum.

9. (a) Describe nutrition in bacteria.
(b) Give economic gains of fungi.