INTER PART-1 GUJRANWALA BOARD 2012
BIOLOGY PAPER 1
TIME 20 MINUTES MARKS 17
OBJECTIVE
NOTE: you have four choices for each objective type question as A,B,C and D. the choice that you thinh is correct , fill that circle in front of that question with marker or pen. Cutting or filling two or more circles will result in zero marks. Attempt as many questions as given in objective type question paper.

• in human body amount of phosphorus is
  
  (a)1%
  (b)2%
  (c) 3%
  (d)4%
  
  
• which is not a conjugated molecule?
  
  (a)glycoprotein
  (b)glycolipid
  (c) polysacharide
  (d)lipoprotein
  
  
• induce fit model was proposed by
  
  (a)emil fisher
  (b)Robert brown
  (c) koshland
  (d)Robert koch
  
  
• tay-sachs disease is because of the absence of an enzyme that is involved in the catabolism of
  
  (a)proteins
  (b)polysacharides
  (c) oligosacharides
  (d)lipids
  
  
• the common name for allium cepa is
  
  (a)brinjal
  (b)amaltus
  (c) onion
  (d)potato
  
  
• misuse of streptomycin can cause
  
  (a)allergic reactions
  (b)decolouration of teeth
  (c) headeach
  (d)deafness
  
  
• common name for pyrrophyta is
  
  (a)euglenoids
  (b)diatoms
  (c) dinoflagelates
  (d)brown algae
  
  
• despite absence of sexual reproduction, imperfect fungi show special kind of generic recombination called
  
  
• (a)kariogamy
  (b)plasmogamy
  (c) conjugation
  (d)parasexuality
  
  
• which one belongs to bryopsida?
  
  (a)marchantia
  (b)porella
  (c)anthoceros
  (d)polytrichum
  
  
• balangoglossus and saccoglossus one common example of phylum
  
  (a)hemichordata
  (b)echinodermata
  (c) mollusca
  (d)annelida
  
  
• porpharin ring of chlorophyll is made up of four joined smaller
  
  (a)pyranore rings
  (b)pyrole rings
  (c) furanore rings
  (d)phytol rings
  
  
• deer and sheep are examples of
  
  (a)herbivouirs
  (b)detritivours
  (c)carnivours
  (d)omnivours
  
  
• a process in which ribulose oxugen fixes oxygen instead of carbon dioxide is called
  
  (a)respiration
  (b)photorespiration
  (c)glycolysis
  (d)krebs cycle
  
  
• 62% of white blood cells are
  
  (a)neitrophils
  (b)osinophils
  (c)basophils
  (d)lymphocytes
  
  
• coronary arteries supplyblood to the
  
  (a)head
  (b)shoulders
  (c) heart
  (d)kidney
  
  
• sugar is obtained from the juice of
  
  (a)oryza sativa
  (b)hordeum vulgare
  (c)sorgum vulgare
  (d)saccharum officinarum
  
  
• it is universally accepted by biologists that mammals have evolved from reptilian ancesters called
  
  (a)cotylosaurs
  (b)dinosaurs
  (c) cyclostomata
  (d)amphibians

INTER PART-1 GUJRANWALA BOARD 2012
BIOLOGY PAPER 1
TIME:2.40 HOURS MARKS 68
SUBJECTIVE
NOTE: section 1 is cumplsory attempt any 3 questions from section 2.
SECTION-1

2.WRITE SHORT ANSWERS TO ANY 8 QUESTIONS: 16

• I name 2 reducing sugars. Also mention the name of two similer disaccharide.
• II how many chains are present in hemoglobin? Also give amino acids in each chain.
• III distinguish between reversible and irreversible inhibitors of enzymes.
• IV define bioremediation. What is the role of licvhens during ecological succection?
• V name any four antibiotics obtained from fungi?
• Vi what is bubisco?what is its functions?
• Vii differentiate between external and cellular respiration.
• Viii differentiate between action spectrum and absorption spectrum.
• Ix define facilitated diffusion and quate one example.
• X differentiate between stroke and haemorrhage.
• Xi what is cohesion tension theory of ascent of sap?who produced it?
• Xii differentiate between diffusion and active transport.

3.WRITE SHORT ANSWERS TO ANY EIGHT QUESTIONS: 16

• I define binominal nomenclature. Who introduced it.
• II differentiate between lysogeny and induction im becteria.
• III define asexual reproduction in nostoc.
• IV define saprophytic parasitic bacteria.
• V write down the scientific name and name of the family of tomato and shjeesham
• VI give four examples of ferns
• VII distinguish between monoicots and dicots
• VIII distinguish between nerve and notochord.
• IX give examples of matatheria.
• X what is metamorphosis?
• XI why air is a better respiratory medium than water?
• XII write the causes of lung cancer.

3.WRITE SHORT ANSWERS TO ANY SIX QUESTIONS: 16

• I what are bio elements? Give their proportion in human body.
• II what do you know about gene therapy?
• III write salient features of cell theory.
• IV write a note on cytoskeleton.
• V what do you know about green algae?
• VI what do you know about foraminiferans and actinipods?
• VII define paristalisis and anti paristalisis.
• VIII what do you know about fluids feeders?
• IX what is heart burn or pyrosis?

SECTION-2
Question#5
(a) write a note on ribosomes. 4
(b) describe lytic cycle of bacteriophage. 4

Question#6
(a) write a note on inhibitors of enzymes. 4
(b) explain sexual reproduction in fungi. 4

Question#7
(a) describe nutrition in bacteria. 4
(b) describe digestion in stomach of man. 4

Question#8
write the process of non cyclic phosphorelation. 8

Question#9
explain the evolution of seed. 8