CSS Botany Paper 2021

In this article, you will find the CSS Botany Paper 2021. You can view or download this CSS Botany Paper 2021. The Botany paper of CSS was held on 22-02-2021.

Get CSS Botany Paper 2021

The following questions were given in the CSS Botany Paper of 2021:

Q2. Crnophyta (blue-green algae) is a main group of algae. What is the economic importance of this particular group in food and hunger? Illustrate your answer with examples.

Q3. What are the physiological roles of Cytokinins and Abscisic Acid in plant growth?

Q4. What is the specificity of enzyme actions? Explain it with reference to the important enzyme “Ribulose-1, 5-Bisphosphate Carboxylase-Oxygenase? (RuBisCo).

Q5. Differentiate between Vascular cambium and cork cambium. Describe their role in secondary growth.

Q6. Write a note on cell senescence and cell death.

Q7. How are Gametophyte and Saprophyte evolved in bryophytes?

Q8. Write a note on any TWO of the following:

  • Handy – Weinberg’s law
  • Evidence of Evolution
  • Theory of Natural Selection
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You can download this Botany paper.

CSS Botany Paper 2021

Other CSS (Compulsory) 2021 Papers:

Essay
English (Precis & Composition)
Object (Precis & composition)
CSS General Science & Ability
Islamic Studies
Pakistan Affairs
Current Affairs

Other CSS (Optional) 2021 Papers:

➤ View All CSS Papers of 2021 here

IR paper-I
Economics Paper-I
Economics Paper-II
Political Science-I
Political Science-II
Accountancy & Auditing Paper-II
Computer Science Paper-II
Anthropology
Geography
Sindhi
Psychology
Agriculture & Forestry

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