Botany Punjab PMS Paper I 2019

PUNJAB PUBLIC SERVICE COMMISSION
COMBINED COMPETITIVE EXAMINATION FOR
RECRUITMENT TO THE POSTS OF
PROVINCIAL MANAGEMENT SERVICE – 2019
SUBJECT: BOTANY (PAPER – I)
TIME ALLOWED: THREE HOURS MAXIMUM MARKS: 100
NOTE: Attempt FIVE Questions in All. Attempt in Urdu or English.
Q.No. 1 (a) Write on distribution and life history of Rhodophyta.
(b) Give Economic importance of Algae. (10 + 10 = 20 Marks)
Q. No. 2: (a) How does the sporophyte and Gametophyte of Moss plant differ from that of a Liverwort?
(b) Give general account of Bryophytes. (10 + 10 = 20 Marks)
Q. No. 3: (a) Describe modern system of plant classification, with its basis.
(b) Write a note on alpine and boreal forests. (10 + 10 = 20 Marks)
Q. No. 4: (a) Describe the changes which enabled the green plants to inhabit dry land environment.
(b) How was seed evolved in land plants? (10 + 10 = 20 Marks)
Q.No. 5: Write short notes on the following: (4 x 5 = 20 Marks)
(a) Double Fertilization (b) Meristematic tissue (c) Systematics (d) Ovule types in Angiosperms
Q. No. 6: (a) Explain evolutionary tendencies of Gymnosperms with examples.
(b) How does Cycas differ from Pinus? (10 + 10 = 20 Marks)
Q. No. 7: (a) Describe the development of male and female Gametophyte in Angiosperms.
(b) Describe the structure of Xylem in Angiospermic Plants. (10 + 10 = 20 Marks)
Q.No. 8: Differentiate between the following: (4 x 5 = 20 Marks)
(i) Chlorophyta and Rhodophyta
(ii) Spore and Gamete
(iii) Oospore and Zoospore
(iv) Prokaryotes and Eukaryotes