Varied difficulty levels in AP Inter 1st Year Zoology Model Papers and AP Inter 1st Year Zoology Question Paper March 2023 cater to students with diverse academic strengths and challenges.
AP Inter 1st Year Zoology Question Paper March 2023
Time: 3 Hours
Max.Marks: 60
Note: Read the following instructions carefully.
- Answer All the questions of Section – A. Answer ANY SIX questions in Section – B and answer ANY TWO questions in Section – C.
- In Section – A, questions from Sr. Nos. 1 to 10 are “Very Short Answer Type Each question carries TWO marks. Every answer may be limited to 5 lines. Answer All questions at one place in the same order.
- In Section – B, questions from Sr Nos. 11 to 18 are of’ “Short Answer Type”. Each question carries FOUR marks. Every answer may be limited to 20 lines.
- In Section – C, questions from Sr. Nos. 19 to 21 are of “Long Answer Type. Each question carries EIGHT marks. Every answer may be limited to 60 lines.
- Draw labeled diagrams, wherever necessary in Section – B and C.
Section – A
(10 x 2 = 20)
Note: Answer All the questions 5 lines each.
Question 1.
What does ICZN stand for?
Question 2.
Define osteon.
Question 3.
Draw a labelled diagram of T.S. of flagellum.
Question 4.
What are retroperitoneal organs?
Question 5.
How does a mature RBC of a mammal differ from that of other vertebrates?
Question 6.
Mention the advantages of some UV rays to us.
Question 7.
What do you call the locomotor structures of Nereis? Why is Nereis called a polychaete?
Question 8.
Distinguish between proter and opisthe.
Question 9.
Mention the animals that exhibited a ‘tube-with-in-a-tube’ organisation for the first time. Name their body cavity.
Question 10.
In which way does tobacco affect the respiration? Name the alkaloid found in tobacco.
Section – B
(6 x 4 = 24)
Note: Answer ANY SIX questions in 20 lines each.
Question 11.
Explain ‘Rivet Popper’ hypothesis.
Question 12.
What are the chief characters of the crustaceans?
Question 13.
Describe the three types of cartilage.
Question 14.
List out eight characteristics that help distinguish a fish from the other vertebrates.
Question 15.
Describe the process of longitudinal binary fission in Euglena.
Question 16.
Distinguish between hypertrophy and hyperplasia with an example for each.
Question 17.
How do manne animals adapt to hypertonic seawater?
Question 18.
Draw a neat labeled diagram of the mouth parts of cockroach.
Section – C
(2 x 8= 16)
Note: Answer ANY TWO questions in 60 lines each.
Question 19.
Describe the digestive system of cockroach with the help of a neat labelled diagram.
Question 20.
List out the major air pollutants and describe their effects nn human beings.
Question 21.
Explain the structure and life cycle of Entamoha histolytica with the help of neat and labelled diagrams.