DGK. Board 2016
Biology Part   I
Time Allowed: 3 Hours
Group-I
Max. Marks: 85
Note: There are THREE sections in the paper i.e. Section A, B and C.
Attempt Section -A on the same paper and return it to the Superintendent within the given time.
No marks will be awarded for Cutting, Erasing or Overwriting. Marks of Identification will lead to UFM Case Mobile Phone etc are not allowed in the examination hall.
Time Allowed: 20 minutes
Section -A
Marks: 17

1. Write the correct option i.e. A, B, C or Din the empty box provided opposite to each part.

• The HIV virus causes:
  
  (A) Tuberculossi
  (B) Cancer     
  (C) AIDS          
  (D) Hepatitis
  
  
• Amino acids are linked to each other by:
  
  (A) Ester bond
  (B) Glycoside bond  
  (C) Hydrophobic bond
  (D) Peptide bond
  
  
• The optimum pH of Salivary amylase is:
  
  (A) 8.80          
  (B) 6.80         
  (C) 4.80          
  (D) 2.80
  
  
• The cells which transmit impulses are:
  
  (A) Nerve cells
  (B) Blood cells           
  (C) Kidney cells         
  (D) Bone cells
  
  
• Mad cow disease is caused by:
  
  (A) Virus        
  (B) Prion        
  (C) Fungi        
  (D) Bacteria
  
  
• The thick walled reproductive cell of cyanobacteria are called:
  
  (A) Heterocyst
  (B) Trichome 
  (C) Hormogonia        
  (D) Akinete
  
  
• The largest brown algae are called:
  
  (A) Diatoms   
  (B) Kelps        
  (C) Dinofiagellates    
  (D) Gelidium
  
  
• Most of the visible part of Lichen consists of:
  
  (A) Bacteria   
  (B) Fungi        
  (C) Algae        
  (D) Roots
  
  
• Double fertilization is a special process found in:
  
  (A) Ferns        
  (B) Bryophytes         
  (C) Gymnosperm
  (D) Angiosperms
  
  
• Flame cells are the excretory cells in:
  
  (A) Flat worms
  (B) Segmented worms
  (C) Round worms     
  (D) Insects
  
  
• Syrinx is an organ of voice in:
  
  (A) Amphibians
  (B) Birds        
  (C) Reptiles    
  (D) Mammals
  
  
• Glycolysis is the breakdown of glucose up to the formation of:
  
  (A) NAD          
  (B) Sulphuric acid     
  (C) ATP           
  (D) Pyruvic acid
  
  
• Chlorophylls are insoluble in:
  
  (A) Alcohol    
  (B) Acetone   
  (C) Water       
  (D) Carbon tetra chloride
  
  
• Constipation is caused by the excessive absorption of:
  
  (A) Water       
  (B) Food        
  (C) Blood        
  (D) Oxygen
  
  
• Emphysema is a breakdown of:
  
  (A) Haemoglobin      
  (B) Alveoli     
  (C) Teeth        
  (D) Tissues
  
  
• One complete heart beat consists of one systole and one diastole, and last for about:
  
  (A) 0 seconds
  (B) 8 seconds
  (C) 5 seconds
  (D) 2 seconds
  
  
• Veins arc the blood vessels which transport blood from body cells towards:
  
  (A) Brain        
  (B) Kidney     
  (C) Liver
  (D)Heart

SECTION-I 

2.    Attempt any eight parts.

• What is Biological control? Give its example.
• How Macromolecule differ from Macromolecule?
• What are conjugate molecule? Give one example.
• In what way substrate concentration affect the rate of reaction?
• Differentiate between Co-factor and Coenzyme.
• Define optimum temperature. Give optimum temperature of human.
• Write three characteristics of Enzyme.
• What are Functions of Micronucleus and macronucleus in Ciliates?
• Write two distinguish characters of kingdom protista.
• (Name parasitic Amoeba, which disease does it cause.
• How Budding differ from Fragmentation?
• What is Lichen? Give their importance.

3.    Attempt any eight parts.

• Where the new Ribosomcs assembled?
• When nucleus of cell is visible?
• What is Mantle in Molluscus?
• Define hermaphrodite. Give one example.
• Name some Egg laying mammals.
• What is metamorphosis?
• Write down the name of main phases of Glycolysis.
• What is External Respiration?
• Give any two causes of emphysema.
• How does inspiration differ from expiration?
• What is the normal Breathing rate in human?
• Write the main causes of Respiratory disease Asthma.

4.    Attempt any six parts.

• Differentiate between lyric phage and lysogenic phage.
• What are antiseptics?
• What is rhizome?
• What is an Ovule?
• What is Dyspepsia. Give its two symptoms.
• What are fluid feeders? Give two examples,
• Differentiate between Appendix and appendicitis.
• Define immunity. Name its two types.
• How are sources different from sinks in plants?

SECTION-II
Note:- Attempt Any three Questions.

5. (a) Describe the role of Biology in food production.
(b) Describe any four steps in the evolution of seed habit.

6. (a) Explain polysaccharides with examples.
(b) Describe nutrition in insectivorous plants.

7. (a) Describe differences between Prokaryotic and Eukaryotic cells.
(b) Write a note on asexual reproduction in fungi.

8. (a) Draw the infectious cycle of lily.
(b) Discuss the non-cyclic phosphorylation with diagram.

9.(a) Describe various methods of control of Bacteria.
(b) Describe one Hypothesis to explain mechanism of opening and closing of stomata.

DG KHAN Board 2016
Biology Part   I
Time Allowed: 3 Hours
Group-II
Max. Marks: 85
Note: There are THREE sections in the paper i.e. Section A, B and C.
Attempt Section -A on the same paper and return it to the Superintendent within the given time.
No marks will be awarded for Cutting, Erasing or Overwriting. Marks of Identification will lead to UFM Case Mobile Phone etc are not allowed in the examination hall.
Time Allowed: 20 minutes
Section -A
Marks: 17

1. Write the correct option i.e. A, B, C or Din the empty box provided opposite to each part.

• According to lock and key model the active site is:
  
  (A) Flexible structure           
  (B) Rigid structure
  (C) Liquid structure  
  (D) Enzyme
  
  
• Cadet apparatus is concerned with cell:
  
  (A) Division    
  (B) Lysis         
  (C) Storage    
  (D) Scerction
  
  
• Organelle of symbiotic origin is:
  
  (A) Cell wall   
  (B) Cell membrane   
  (C) Mitochondria      
  (D) Vacuole
  
  
• Reserve food material in cyanobacteria is in the form of:
  
  (A) Sucrose    
  (B) Starch      
  (C) Proteins   
  (D) Glycogen
  
  
• Sleeping sickness is spread by:
  
  (A) Tsetse fly 
  (B)Trypanosoma       
  (C) Mosquito 
  (D) Plasmodium
  
  
• Fungi can tolerates a wide range of pH from:
  
  (A) 3 - 8          
  (B) 4 - 6         
  (C) 2 - 9          
  (D) 1 - 5
  
  
• All seed producing plants are also called:
  
  (A) Gymnosperms    
  (B) Angiosperms
  (C) Spermatophytes 
  (D) Bryophytes
  
  
• A blue colored respiratory pigment called harmocynnin is found in:
  
  (A) Molluscs  
  (B) Arthropods         
  (C) Annelids   
  (D) Echinoderms
  
  
• Polymorphism is the characteristics of the members of phylum:
  
  (A) Porifcra    
  (B) Platyhelminthes 
  (C) Nematode           
  (D) Comdaria
  
  
• The percentage of photosynthesis carried out by terrestrial plants is about:
  
  (A) 10 
  (B) 20 
  (C) 30 
  (D) 40
  
  
• In respiratory chain. NAM is oxidized by:
  
  (A) Co-factor 
  (B) Coenzyme
  (C) Cytochrome “b”
  (D) Cytochrome “C”
  
  
• Excess gastric secretion is an important factor of:
  
  (A) Obesity    
  (B) Piles         
  (C) Food poisoning   
  (D) Peptic ulcer
  
  
• More than ten compounds of tar of tobacco smoke are included in causing:
  
  (A)Cancer       
  (B) Tuberculosis       
  (C) Asthma
  (D) Emphysema
  
  
• Casparian strips are present in cell of root:
  
  (A) Cortex      
  (B) Epidermis
  (C) Endodermis
  (D) Phloem
  
  
• The valves present in the veins are called:
  
  (A) Bisuspid   
  (B) Semi-hunar
  (C) Tricuspid 
  (D) Aortic
  
  
• The tentative explanation of observations is:
  
  (A) Deduction
  (B) Theory    
  (C) Hypothesis          
  (D) Lass
  
  
• The amino acids are mainly different from earh other due to the type and nature of:
  
  (A) R-group    
  (B) Amino  group     
  (C) Carboxyl group   
  (D) Peptide bond

SECTION-I

2.   Attempt any eight Parts.

• What do you understand by Phyletic Lineage?
• Differentiate between Chemotherapy and gene therapy.
• Give general formula for an amino acid.
• What is induced Fit model?
• Differentiate between competitive and Non-competitive inhibitors.
• How is prosthetic group different from co-enzyme?
• What are Kelps? Give its parts.
• How are fotminiferans source of lime stone?
• What is Trypanosoma? What disease dress it cuase?
• What is Pellicle ?
• What are Lichens?
• Give two characteristics of Fungi for their Land adaptations.

3.    Attempt any Eight parts.   

• How Thylakoid differ from granum?
• What are Crime and Polysome?
• Dafine photosynthesis with equation.
• Differentiate between photolysis and photo-phosphorylation.
• Write the importances of sponges.
• How polyp differ from medusa?
• Write any two parasitic adaptations of platyheltninths.
• Differentiate between Diploblastic and Triploblastic organization with two points.
• What are Diaphragm and Pleura?
• Define photo-respiration, Name organenilles involved in it.
• What is Diving Reflex?
• Name the structure involved in gaseous exchange in Earthworm, Fish and Frog.

4.    Attempt any six parts.       

• What is Binomial Nomenclature?
• What is difference between bacterial cell membrane and eukaryotic cell membrane?
• Define Double Fertilization.
• What is Maiden Hair Fern?
• What are Detritivores?
• What happen when liver rupture and become large?
• What are the main reasons of chlorosis in plants?
• What are the preventive measures for the irredication of Haemorrhage problems?
• What is Facilitated diffusion? Give its function

SECTION-II
Note:- Attempt Any three Questions.

5. (a) Discuss the organs and System level of Biological Organizations.
(b) Describe the important steps involved in the Evolution of Seed habit.

6. (a) Give importance of carbon in skeleton of life.
(b) Describe digestion in stomach of man.

7. (a) Write a note on Plastids.
(b) Discuss any tour economic gains due to Fungi.

8. (a) Write a note on AIDS.
(b) Sketch Non-cyclic phosphorylation.

9. (a) Describe physical and chemical methods use to control bacteria.
(b) Define immunity give its types.