InterviewSolution
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3) What is a zygomorphic flower4) Which cell organelle has 9+2 arrangement of microtubules |
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Answer» 1)having floral parts unequal in size or form so that the flower is capable of division into essentially symmetrical halves by only one longitudinal plane passing through the axis2) Centriole- They give rise to basal granules of cilia and flagella, and to produce spindle apparatus at the time of cell division.Each cetriole has 9 peripheral groups of triplet microtubules, without any central microtubules. This is called 9+0 pattern. Cilia- Cilia is as organ of locomotion of cells by their sweeping or pendular vibrations.Each cilium shows 9 peripheral groups of doublet microtubules arranged in a circle, and two singlet microtubules in centre enclosed in a sheath. This is called 9+2 pattern. Prokaryotic flagella are made of specialized proteins. Eukaryotic flagella are composed of microtubules surrounded by a plasma membrane.Microtubulesare just one component of the eukaryotic cellcytoskeleton,which functions to do things like organize and support cell structures just like your own boney skeleton supports you. Microtubules are made up of alpha and beta tubulin proteins dimers (pairs), which link together to form long chains. |
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