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Botany Question 3 – AP-EAMCET 2025

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Choose the incorrect statement among the following I. The present era is called “Golden era of Biology” II. Sexual system of classification was proposed by Theophrastus. III. Study of Amphibians of plant kingdom are called Bryology IV. Recycling of nutrients takes place by parasitic petroplants.

This question tests your knowledge of key figures in botany, characteristics of plant groups, and ecological roles of organisms.

Step 1: Analyze Statement I: "The present era is called 'Golden era of Biology'"✦ Active

The term "Golden era of Biology" is often associated with the mid-20th century, marked by significant discoveries like the structure of DNA and the rise of molecular biology. While the current era sees rapid advancements in genomics and biotechnology, it is not typically referred to as the "Golden era" in a historical context. Thus, this statement is generally considered incorrect or at least debatable.

Step 2: Analyze Statement II: "Sexual system of classification was proposed by Theophrastus."○ Expand

The sexual system of classification, which is based on the number and arrangement of stamens and pistils, was proposed by Carolus Linnaeus. Theophrastus, known as the "Father of Botany," classified plants based on their habit (trees, shrubs, undershrubs, herbs) and duration. Therefore, statement II is incorrect.

💡 Teacher's Secret Hint

Remember that Carolus Linnaeus is famous for his binomial nomenclature and the sexual system of classification.

Step 3: Analyze Statement III: "Study of Amphibians of plant kingdom are called Bryology"○ Expand

Bryophytes are indeed referred to as the "amphibians of the plant kingdom" because they require water for fertilization, similar to amphibians needing water for reproduction. The scientific study of bryophytes is known as Bryology. Therefore, statement III is correct.

Step 4: Analyze Statement IV: "Recycling of nutrients takes place by parasitic petroplants."○ Expand

Nutrient recycling in ecosystems is primarily carried out by decomposers, such as bacteria and fungi, which break down dead organic matter and return nutrients to the soil. Parasitic plants (the term "petroplants" is not standard and likely a typo, but even if it refers to parasitic plants) obtain nutrients from a living host and do not play a primary role in ecosystem-wide nutrient recycling. Therefore, statement IV is incorrect.

💡 Teacher's Secret Hint

Decomposers are crucial for nutrient cycling in all ecosystems.

Step 5: Identify the Incorrect Statements and Select the Correct Option○ Expand

Based on the analysis: - Statement I: Incorrect (or highly debatable) - Statement II: Incorrect - Statement III: Correct - Statement IV: Incorrect The question asks to choose the incorrect statement(s). Statements II and IV are definitively incorrect. Option 4 lists "II, IV" as the incorrect statements.

💡 Teacher's Secret Hint

Always double-check the question to ensure you are identifying the correct type of statement (correct or incorrect).

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