DG Khan BOARD 2017
(Objective Type)
Biology 
Time Allowed: 20 Minutes

Maximum Marks: 17 
NOTE: You have four choice 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 questions papers and leave others blank. No credit will be awarded in case. BUBBLE are not filled. Do not solve questions on this sheet of OBJECTIVE PAPER.

• A large regional community primarily determined by climate is called
  
  

1. Population
2. Species
3. Ecosystem
4. Biome

•  80 % of total RNA in the cell comprises of
  
  

1. mRNA
2. t RNA
3. r RNA
4. RNA-DNA Hybrid

• The optimum pH of enzyme of human body is
  
  

1. 35 °C
2. 36 °C
3. 37 °C
4. 38°C 

• The diameter of peroxisome is approximately
  
  

1. 0.2pm
2. 0.3pm
3. 0.4pm
4. 0.5pm 

• Hepatitis is an inflammation of
  
  

1. Stomach
2. Pancreas
3. Liver
4. Kidney

• The phase of rapid growth in bacteria is
  
  

1. Lag phase
2. Log phase
3. Stationary phase
4. Decline phase

• Sleeping sickness is transmitted by bite of infected
  
  

1. Lice
2. Tick
3. Tsetse fly
4. Mosquito

• Yeasts are unicellular
  
  

1. Protozoans
2. Algae
3. Fungi
4. Bacteria

• The sporophyte of bryophytes is
  
  

1. Haploid
2. Diploid
3. Triploid
4. Tetraploid

• Animals that feed on plants are called
  
  

1. Herbivores
2. Carnivores
3. Omnivores
4. Filter feeders

• Parabronchii are present in
  
  

1. Fishes
2. Reptiles
3. Birds
4. Mammals

• Nereis belongs to phylum
  
  

1. Nematode
2. Annelida
3. Arthropoda
4. Mollusca

• Mammals become dominant in
  
  

1. Paleozoic period
2. Mesozoic period
3. Coenozoic period
4. Proterozoic period 

• Oxygen released during photosynthesis comes from
  
  

1. Carbon dioxide
2. Water
3. Nitrogen dioxide
4. Sulphur dioxide

• Rubisco is the most abundant protein in
  
  

1. Golgi bodies
2. Mitochondria
3. Chloroplast
4. Nucleoli

• The loss of water through hydathodes is called:
  

1. Bleeding
2. Guttation
3. Transpiration
4. Imbibition

• The discharge of blood from blood vessels is called
  

1. Stroke
2. Haemorrhage
3. Hypertension
4. Hypotension

INTER PART 1 GUJRANWALA BOARD 2017
(Subjective Type)
Time 2.40 Hours
Group-I 
Maximum Marks: 68

NOTE: - Write same question number and its part number on answer book, as given in the question paper. 

2. Attempt any eight parts.

1. What are waxes? Explain
2. Differentiate between apdenzymes and holoenzymes
3. How substrate concentration effects enzyme action?
4. What are inhibitors?
5. Why are some fungi called as predators?
6. What is parasexuality?
7. Write down any two differences between protostomia and deuterostomia
8. What are hook worms?
9. Write down any four characteristics of class osteichthyes (bony fishes)
10. Give any four characteristics of mammals
11. What are carotenoids?
12. What is importance of Mg in chlorophyll molecules?

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

1. Name any four geological eras.
2. Define biological control and biopesticides
3. What are autophagosomes?
4. Give composition of test / shell of Foraminiferans and Actinopodes
5. What is meant by resolution of microscope?
6. What are pigments found in Algae?
7. Write down importance of Algae?
8. Compare micronucleus & macronucleus of ciliates.
9. What are paraphyses? Give their function.
10. Give graphic representation of alternation of generations.
11. Differentiate between systematic and pulmonary circulation.
12. How sieve tubes and companion cells communicate?

4. Write short answer of any six question

1. What are Retroviruses? Give example.
2. What is heterocyst? Give its importance.
3. Write the names of four parts of digestive system of cockroach.
4. Differentiate between obligate and facultative parasites.
5. What is saliva? Give its composition.
6. Write at least two different states of CO2 transportation in blood.
7. What is epiglottis? Mention its function.
8. Give role of parabranchi in the respiration of birds.
9. What is Emphysema? Give its effects.
   

SECTION-II

NOTE: - Attempt any three questions. 

Q5:

1. Discuss role of biology in the welfare of mankind 
   
2. Write down the main functions of lymphatic system in human body

 Q6:

1. Give importance of water in nature
   
2. Write a note on methods of animal nutrition with at least four examples

Q7:

1. Describe structure and functions of plasma membrane 
   
2. Give the outlines of Krebs cycle. (Description is not required)

Q8:

1. Write a note on Acquired Immune Deficiency Syndrome 
   
2. Explain Hepaticopsida in detail

Q9:

1. Describe growth and reproduction in bacteria
   
2. Write a detailed note on Ascomvcota

.
D.G.K BOARD 2017
INTER PART-I
Biology Paper I 
(Objective Type) 
Time Allowed: 20 Minutes 
Group-II

Maximum Marks: 17
NOTE: You have four choice 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 questions papers and leave others blank. No credit will be awarded in case. BUBBLE are not filled. Do not solve questions on this sheet of OBJECTIVE PAPER.

• in human body percentage of
  
  
  1. 65% 
     
  2. 10% 
     
  3. 8%
     
  4. 3%
  
  
• The covalent bond between two monosaceharides is called:
  
  
  1. Peptide bond
     
  2. Glycosidic bond
     
  3. Hydrogen bond
     
  4. Disulfide bond
  
  
• The optimum pH for catalase activity is
  
  
  1. 4.5
     
  2. 5.5
     
  3. 9.7 
     
  4. 7.6
• Chitin is found in the cell wall of:
  
  
  1. Algae 
     
  2. Bacteria 
     
  3. Fungi 
     
  4. Plants
• Number of capsomeres in the capsid of Herpes virus is 
  
  
  1. 162 
     
  2. 252
     
  3. 154 
     
  4. 175
  
  
• The bacteria in which tuft of flagella is present at each of two poles are called 
  
  
  1. Monotrichous 
     
  2. Lophotrichous
     
  3. Amphitrichous 
     
  4. Peritrichous
  
  
• African sleeping sickness is transmitted be
  
  
  1. Trypanosoma
     
  2. Mosquito
     
  3. Tsetse fly
     
  4. Plasmodium
  
  
• The predatory oyster mushroom paralyses the following organisms 
  
  
  1. Nematodes 
     
  2. Algae 
     
  3. Bacteria
     
  4. Snails
  
  
• Liverworts belong to the subdivision 
  
  
  1. Hepaticopsida 
     
  2. Bryopsida 
     
  3. Anthoceropsida 
     
  4. Lichens
  
  
• The asexual reproduction in sponges occurs by
  
  
  1. Budding 
     
  2. Fragmentation 
     
  3. Spores 
     
  4. Conidia
  
  
• The polyp is reduced and medusa is dominant in 
  
  
  1. Actinic 
     
  2. Madreporite
     
  3. Aurelia 
     
  4. Obelia
  
  
• Quantitative study of energy conservation in biological system is called 
  
  
  1. Thermodynamics 
     
  2. Respiration 
     
  3. Bioenergetics 
     
  4. Metabolism
  
  
• Van Niel hypothesized that source of oxygen during photosynthesis is: 
  
  
  1. Water 
     
  2. Carbon dioxide
     
  3. Chlorophyll
     
  4. NADP
  
  
• Gall stones are formed in the gall bladder due to the precipitation of:
  
  
  1. Glycerol 
     
  2. Cholesterol 
     
  3. Sterols 
     
  4. Salts
  
  
• The most abundant protein in chloroplast and probably most abundant in the world 
  
  
  1. Haemoglobin 
     
  2. Rubisco 
     
  3. Insulin 
     
  4. Globulin
  
  
• Pathway of water consisting of interconnected protoplasts in root cells is called: 
  
  
  1. Apoplast 
     
  2. Symplast 
     
  3. Protoplast 
     
  4. Tonoplast
  
  
• In normal human body percentage of plasma in blood volume is:
  
  
  1. 45% 
     
  2. 30% 
     
  3. 055% 
     
  4. 60%
     

(Subjective Type)
Biology Paper I
Time Allowed: 2.40 Hours
Group-II 
Maximum Marks: 68 
SECTION-I

2. Attempt any eight parts. 

1. How the peptide bonds are formed? 
   
2. Differentiate between apoenzymes and holoenzymes 
   
3. What is induced fit model?
   
4. What is effect of enzyme concentration on rate of reaction?
   
5. Why Protista are placed in separate kingdom?
   
6. What are coelomates? Give example 
   
7. Differentiate between an amniotes and amniotes 
   
8. What are anticoagulants? Give their role
   
9. Name two larvae found in Echinoderms 
   
10. What is nuclear mitosis? 
    
11. What is the use of spectrophotometer? 
    
12. What are accessory pigments? Give their role

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

1. What is a community?
   
2. Differentiate between biopesticides and biological control
   
3. What is fluid mosaic model of plasma membrane? 
   
4. Write down any two differences between prokaryotes and eukaryotes? 
   
5. What are characteristics of fungus like Protists? 
   
6. What are ciliates? 
   
7. How do slime molds behave during unfavorable conditions? 
   
8. What is the role of contractile vacuole in fresh water ciliates? 
   
9. Differentiate between antheridia and archegonia 
   
10. What are arthrophytes? 
    
11. What is meant by bleeding in plants?
    
12. What is lenticular transpiration?

4. Write short answers to any six parts.

1. Give biological classification of com 
   
2. Write down any two postulates of germ theory of disease. 
   
3. What are root nodules? Give their role. 
   
4. What is dyspepsia? Give its two symptoms. 
   
5. What is obesity? Give its harmful aspects. 
   
6. Give the respiratory role of skin of earthworm. 
   
7. How carbon dioxide affect the combining capacity of Haemoglobin with oxygen? 
   
8. Differentiate between stomata and lenticels 
   
9. Differentiate between inspiration and expiration. 

SECTION-II

Attempt any three questions. 

Q5:

1. Define hypothesis and Discuss different ways for formulation of hypothesis
   
2. Write a note on cohesion tension theory
   

Q6:

1. Discuss methods of heterotrophic nutrition in plants 
   
2. Illustrate chemical composition of DNA 

Q7:

1. Compare prokaryotic cell and eukaryotic cell
   
2. Sketch the outlines of Krebs cycle.

Q8:

1. Describe life cycle of Bacteriophage.
   
2. Discuss the life cycle of Adiantum. 

Q9:

1. Describe general characteristics and economical maintenance of Cyanobacteria 
   
2. Discuss methods of asexual reproduction in fungi