Which of the following plants is monoecious?
- Carica papaya
- Chara
- Marchantia polymorpha
- Cycas circinalis
The Correct Option is B
Solution and Explanation
To determine which of the given plants is monoecious, we need to understand what monoecious means. In botany, a monoecious plant has both male and female reproductive organs on the same individual plant. This is in contrast to dioecious plants, where male and female organs are found on separate plants.
Let's analyze each option:
- Carica papaya: This plant is dioecious, meaning there are separate male and female plants. Therefore, it is not monoecious.
- Chara: Chara is a type of green algae which is monoecious because it has both male (antheridia) and female (oogonia) reproductive structures on the same plant.
- Marchantia polymorpha: This liverwort is dioecious, with distinct male and female plants. Hence, it is not monoecious.
- Cycas circinalis: Cycads, including Cycas circinalis, are dioecious with separate male and female plants.
From this analysis, we can conclude that Chara is the only plant among the options provided that is monoecious, as it possesses both male and female reproductive structures on the same plant.
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Concepts Used:
Algae
An Algae is a term mentioning a group of photosynthetic eukaryotic organisms. It has chlorophyll and nucleus but no root, stem, leaves and many features like normal land plants. Algae is both unicellular (e.g. Euglenophyta) and multicellular (e.g. seaweeds). Algae do photosynthesis and help in oxygen production
Algae can live in various habitats like moist rocks, soils, water bodies (both freshwater and marine) and in some animals (e.g. Sloth). Unicellular Algae belong to the Protista Kingdom and Multicellular algae belong to the Plantae Kingdom, but formerly all algae are categorized under kingdom Plantae for their photosynthetic nature.
Also Read: Difference Between Algae and Fungi
