Plant Diversity BS Chemistry/BS Zoology 1 Semester/Term University Of Sargodha (UOS) 2022

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University of Sargodha

BS 1" Term Examination 2022

Subject: Botanv/Zoology/Chemistry Paper: Diversity of Plants (BOTN-5101)

Time Allowed: 02:30 Hours Maximum Marks: 40

Note: Objective part is compulsory. Attempt any three questions from subjective part.

Objective Part (Compulsory)

Q.1. Write short answers of the following in 2-3 lines each on your answer sheet. (2*8)

i. What type of genome is present in TMV?

ii. Differentiate between epiphytes and lichens.

iii. How cyst is different heterocyst?

iv. Define cyanobacteria.

v. What is the difference between carpospores and tetraspores?

vi. Differentiate between isomorphic and heteromorphic alternation of generation.

vii. Differentiate between haplontic and diplontic life cycle.

viii. What are ferns? Give examples.

Time Allowed: 02:30 Hours

Note:

Q.1.

nat

Maximum Marks: 40

Objective part is compulsory. Attempt any three questions from subjective part.

Write short answers of the following in 2-3 lines each on your answer sheet. (2*8)

Subjective Part (3*8)

What are diatoms? Explain structure and reproduction in Pinnularia.

Describe in detail the stages of life cycle of smut and its impact on the crops.

Explain the structure of Marsilea along with its life cycle.

Give life cycle and economic importance of Pinus.

Write short note on the following:

a) Economic Importance of Fungi

b) Poaceae

LK-6101