AI-generated explanation. Check against your textbook.
Explanation:
Chara (a freshwater alga) is monoecious in NCERT terms because it bears both male (antheridia) and female (oogonia) sex organs on the same plant. This means one individual can produce both male and female gametes, fulfilling the monoecious condition.
🧠 Did You Know?
In higher plants, monoecious species have separate male and female flowers on the same individual, while dioecious species have male and female flowers on separate individuals.
💡 NCERT Memory Line:
Monoecious = same plant bears both male and female sex organs (antheridia and oogonia present).
AI-generated explanation. Check against your textbook.
Explanation:
In Agave, the vegetative propagule is called a bulbil. A bulbil is a small bulb-like shoot that forms on the plant and can develop into a new plant when separated. This concept is described in NCERT under vegetative propagation, where bulbil formation is noted for certain plants like Agave. The other options are different structures: a rhizome is an underground stem; an offset is a small plant produced at the base of the parent (common in some aquatic or succulent plants); an eye is a bud or a part of a stem that can give rise to a new shoot. Thus bulbil is the correct term for Agave’s vegetative propagule.
🧠 Did You Know?
Some plants produce plantlets or bulbils that can detach and grow elsewhere, aiding rapid propagation without seeds.
💡 NCERT Memory Line:
Bulbil is a type of vegetative propagule mentioned in NCERT to describe a bulb-like shoot that forms on the plant.
AI-generated explanation. Check against your textbook.
Explanation:
The incorrect statement is option 2. In NCERT, yeasts are described as unicellular fungi that reproduce by budding; they do not have filamentous bodies with long threadlike hyphae. Hyphae are characteristic of molds. Hence, saying yeasts have filamentous bodies with long hyphae is false. The other statements are true: Morels and truffles are edible fungi; Claviceps produces ergot alkaloids and related compounds (from which some drugs are derived, historically linked to LSD); Conidia are produced exogenously (on conidiophores) while ascospores are formed inside an ascus (endogenously).
🧠 Did You Know?
Yeasts are widely used in baking and fermentation due to their unicellular nature and budding reproduction.
💡 NCERT Memory Line:
Yeasts: unicellular fungi; molds: filamentous with hyphae; ascospores: inside ascus; conidia: exogenously on conidiophores.