11th Class Biology Past Paper 2021 BISE Gujranwala
Past papers 2021 1st class biology subjective short and long questions group-2. Students can easily access all past papers of pervious years. you can also view the group-l 2021 past paper and year 2022.
Section-l
Differentiate between anabolism and catabolism.
What do you know about ''Induced fit model'' of enzyme action.
Define active site and also give its two regions.
How enzyme-substrate complex is formed?
What is nucleuar mitosis?
Describe some antibiotics obtained from fungi?
Differentiate between radial and biradial symmetry?
Give four parasitic adaptations in Platyhelminthes.
Write down the characteristics of amphibians.
What are running brides? Give examples.
What do you know about compensation point?
Give accessory photosynthetic pigments.
What are the bio-pesticides? Give example.
Define integrated disease management.
Differentiate between phagocytosis and pinocytosis.
What are choanoflagellates? why they are of special interest.
How algae differ from plants?
Define thallus?
How green algae and plants form a monophyletic lineage?
Why bryophytes are called amphibians of plants?
Differentiate between microphyll and megaphyll.
Write down something about the lrish potato famine.
How pyruvic acid is activated?
Why Calvin cycle is called as C3-pathway?
Write down about five kingdom classification system proposed by Margulis and Schwartz.
How conjugation occurs in bacteria?
Differentiate between cardiac and pyloric sphincter.
Define digestion and give its types.
How trapping and digestion of insects occurs in Venus-fly trap?
Define trachea.
How inspiration occurs in human?
Write down about the concentration of carbon dioxide in arterial and venous blood.
What is tuberculosis?
Section-ll
Write down a note on ''protection and conservation of environment''.
Write down about ''Cohesion Tension Theory'' of ascent of sap.
Explain the primary and secondary structure of proteins.
Write down a note on sac-fungi.
Describe flagella and their functions.
Write down a note on life cycle of angiospermic plant.
Write down a note on AIDS.
Draw and label Calvin cycle.
Write down a note on mitochondria.
How absorption of food takes place in small intestine?
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