Karnataka I PUC Biology Model Question Paper 2021-22
Name of the Organisation : Department of Post University Education, Karnataka
Exam : I PUC Biology Exam
Subject : Biology
Document Type : Model Question Paper
Website : https://pue.karnataka.gov.in
Karnataka I PUC Biology Model Question Paper
Department of Post University Education, Karnataka Biology Model Question Paper I PUC for the year 2021-22.
Related / Similar Question Paper : Karnataka I PUC Mathematics Model Question Paper 2021-22
Karnataka I PUC Biology Questions
PART – A
Answer any TEN of the following questions in ONE word or ONE sentence each
1. Define herbarium.
2. What is bioluminescence?
3. Give an example for plant having epigynous flower.
4. Name the excretory organ found in cockroach.
5. Who first described nucleus as a cell organelle?
6. A cell is actively synthesising and secreting proteins. Which cell organelle is involved in this?
7. What is symport?
8. Name the element responsible for opening and closing of stomata.
9. Why photorespiration does not occur in C4 plants?
10. Define RQ.
11. Mention the blood group having both types of antigen on RBCs.
12. Name the functional unit of muscle contraction.
13. Why the 11th and 12th pairs of ribs in rib cage are called floating ribs?
14. Write the current scientific definition of hormones.
15. Adrenaline and nor-adrenaline are called emergency hormones. Give reason.
PART – B
Answer any FIVE of the following questions
16. “Viruses exhibit both living and non-living characters”. Justify the statement.
17. Mention any two commercial products obtained from algae.
18. Differentiate between endarch and exarch xylem.
19. How do co-enzymes differ from prosthetic groups?
20. “The direction of food movement in phloem can be bidirectional”. Substantiate the statement by giving two reasons.
21. Mention the deficiency symptoms of essential elements in plants.
22. Write the steps involved in conversion of ammonia into nitrate by soil bacteria.
23. Mention any two disorders of human respiratory system.
24. Give an example each for ammonotelic and uricotelic animals.
25. Mention the types of synapse.
PART – C
Answer any FIVE of the following questions in 40-80 words each, wherever applicable:
26. Write the taxonomic categories of mango plant.
27. List any three modifications that enabled birds to adjust to the aerial mode of life.
28. Briefly explain the anatomical features of dorsiventral leaf.
29. Mention the location of the following connective tissues:
i) Dense regular connective tissue ii) Dense irregular connective tissue iii) Cartilage
30. Mention the function of i) Glut-4 ii) Antibody iii) Collagen
31. Briefly explain the criteria for essentiality of an element.
32. Answer the following:
i) With reference to plant development, state the meaning of „plasticity‟. (1)
ii) Differentiate between differentiation and dedifferentiation. (2)
33. Draw a neat labeled diagram of human respiratory system.
34. Diagrammatically represent the structure of nephron.
35. What are joints? Mention any two types of joints.
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