Padasalai 11th Biology Public Exam Important Questions, Answer Keys: Tamil Nadu DGE conducted Biology Public Exam on 23rd March 2020. To get maximum marks students check important questions for Part-1 (Bio-Botany Section -1, 2, 3, 4), Part-2 (Bio-Zoology Section-1, 2, 3, 4) & PTA model question papers.
1 Mark Questions
Question 1: For every CO2 molecule entering the C3 cycle, the number of ATP and NADPH required is
a). 3 ATP +2 NADPH b). 3 ATP + 3 NADPH c). 2 ATP +2 NADPH d). 2 ATP + 3 NADPH
Question 2: Vexillary aestivation is characteristic feature of_____ family
a). Solanaceae b). Brassicaceae c). Fabaceae d). Asteraceae
Question 3: Which of the following represents symport
Question 4: Photosynthetic roots are seen in
a). vanda b). tinospora c). cuscuta d). viscum
2 Mark Questions
Question 1: List the primary functions of leaf
Question 2: A series of events leading to the formation of new cell is known as cell cycle. Give the diagrammatic view of cell cycle
Question 3: Mention the different types of plasmolysis seen in plant cells
Question 4: Tabulate any two differences between cyclic and non-cyclic photo phosphorylation
3 Mark Questions
Question 1: Explain the different types of placentation with example
Question 2:
- a).Draw and label the structure of Mitochondria.
- b). Why mitochondria is called as the power house of a cell
Question 3: A transverse section of the trunk of a tree shows concentric rings which are known as growth rings. What are the significances of studying about these rings
Question 4:
- a). What is the formula for respiratory quotient ?
- b). Write any two significance of pentose phosphate pathway
Padasalai 11th Biology Important Questions Tamil Medium
5 Marks Questions
Question 1). Write the kingdom, phylum and class for pigeon, Write the characteristics of birds that are suitable for flying
Question 2). In our heart, all the four chambers are completely partitioned. It results in non-mixing of oxygenated blood with deoxygenated blood. Explain the double circulation related to it
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