Grade 12 Botany 2071 Pastpaper
Botany
Grade 12 , 2071
Regular Examination Paper
Pass Marks : 17.5
Time : 01:30:00
76. 2069 3 OR
Describe the experiment (Moll's apparatus) in detail showing the necessity of carbon dioxide during photosynthesis.
Answer in brief Significance of polyploidy with examples
Define photosynthesis and describe any experiment regarding the photosynthesis studied by you.
Describe the T.S. Of monocot and dicot leaf with necessary diagram.
Define crossing over and describe its mechanism with necessary diagrams along with its significance.
Elaborate the fermentation technology and its application.
Draw a well labeled diagram of T.S. of monocot stem and point out its differences with dicot stem.
Define transpiration, and describe an experiment to show the rate of transpiration by Ganong's photometer.