Cell Division

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<p>Mitosis is the process of cell division in somatic cells, resulting in two daughter cells with the same number of chromosomes as the parent cell. Meiosis is the process of cell division in sex cells, resulting in four haploid daughter cells with half the number of chromosomes as the parent cell.</p> Signup and view all the answers

<p>Polyploidy refers to having multiple sets of chromosomes. In plants, polyploidy can lead to increased genetic diversity, adaptation to new environments, and the evolution of new species.</p> Signup and view all the answers

<p>The alternation of generations in plants refers to the characteristic life cycle where there are two distinct generations - the haploid (1N) gametophyte and the diploid (2N) sporophyte. These generations alternate in their life cycle and can be either separate plants or stages within the same plant.</p> Signup and view all the answers

<p>Heterospory is the production of two different types of spores - microspores and megaspores. Flowering plants (angiosperms), gymnosperms, and several other major groups of plants exhibit heterospory.</p> Signup and view all the answers

<p>In flowering plants, the male gametophyte is called pollen and the female gametophyte is called an ovule.</p> Signup and view all the answers

<p>The tapetum surrounds the microsporocytes and provides nutrients.</p> Signup and view all the answers

<p>The two main components of pollen are intine (cellulose) and exine (sporopollenin).</p> Signup and view all the answers

<p>Megasporogenesis occurs in the gynoecium, specifically in the ovary.</p> Signup and view all the answers

<p>The synergids produce pheromone-like chemicals that attract sperm to the zone of greatest concentration in front of the egg cell.</p> Signup and view all the answers

<p>The process is called double fertilization, where one sperm fertilizes the egg and the other sperm unites with the polar nuclei.</p> Signup and view all the answers