Question:

Which of the given statements is wrong?

Updated On: Jun 23, 2023
  • Sporangiospores borne in the sporangium of Rhizopus are diploid structures
  • Rhizopus belongs to the class Zygomycetes.
  • Dominant phase in the life cycle of Chlamydomonas is haploid.
  • Zoospores of Chlamydomonas are haploid.
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The Correct Option is A

Solution and Explanation

In Rhizopus, plant body is haploid and it is the dominant phase in its life cycle. The plant body is mycelial, coenocytic and branched. Three types of hypae are seen in Rhizopus: stoloniferous hypae, rhizoidal hyphae and sporangiophores. Sporangiophores are erect, aerial and unbranched hyphae which grow upwards in tufts (3-5) from the stolons. They bear terminal sporangia and so are reproductive in function. They bear multinucleate non-motile spores, called sporangiospores, which are haploid in nature and under favourable conditions give rise to new plants.
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Concepts Used:

Plant Kingdom

The Plant Kingdom comprises all the plants that have some shared characteristics. These are bacteria (prokaryotes), photosynthetic plants, fungi, and several non-photosynthetic plants.

Read Also: Two Kingdom Classification

Several features of Kingdom Plantae are as follows:

  • They are stationary. They are static and usually remain in one place only.
  • They have branches that expanded and green leaves due to the presence of chlorophyll.
  • They are an autotrophic mode of nutrition that simply means they prepare their food with the help of water, sunlight and carbon dioxide. It is further known as self-nutrition.
  • They indulge in photosynthesis during the day and therefore more carbon dioxide is needed during the day and at night it is released.
  • They secure their food in the form of starch-like algae.
  • They have an inelastic wall around their cell known as a cell wall comprised of cellulose.
  • There is an absence of the nervous system and excretory system.
  • Reproduction is entirely dependent on air, insects and water. Asexual and vegetative method of reproduction is noticed or detected.
  • The non-photosynthetic plants acquire their food through parasitism, i.e through their host like Indian pipe.

Read More: Classification of Plants