MCQsPlant anatomy MCQs 1 April 22, 2017 October 14, 2017 Question #1: The living tissue that provides support to the growing parts of the plant, is sclerenchyma collenchyma parenchyma fibresQuestion #2: With reference to bark, which one of the following statements is false? it is a tissue which is completely living. it is a tissue external to innermost phellogen. protects loss of water. protects the tree from infection.Question #3: Major part of wood of old dicot stem is filled with tannins, resins and gums. This part is called heartwood soft wood sap wood hard woodQuestion #4: In the stelar evolution, the type of stele that is highly evolved is dictyostele haplostele atactostele solenosteleQuestion #5: The major function of sieve tubes in plants, is mechanical support. translocation of organic solutes. translocation of water & minerals. food storage.Question #6: Both phloem sieve tubes and xylem vessels are derived from same kind of precursor cell, but at maturity they are very different. What feature is unique to phloem sieve tubes? The cell membrane remains intact in a mature functioning cell. The cell wall is rigid because of deposition of lignin. The cell undergoes programmed cell death during development. The cell contributes to the mechanical support of the stem.Question #7: Which combination of characterstics of a vessel element are most important for water movement in the xylem? Rigid cell wall, cell dead at maturity, end walls absent. Rigid cell wall, reduction in size of plastids & mitochondria, end walls present. Rigid cell wall, living cell membrane, end walls absent. flexible cell wall, cell dead at maturity, end walls absent.Question #8: Pericycle of roots is the site of origin of lateral roots. secondary meristems. cambium. all of the above.Question #9: The living and non-lignified component of vascular bundles are vessel & tracheid. vessel & phloem. wood fibres & phloem. wood parenchyma & phloem.Question #10: Cell division typically occurs only in the meristematic regions of plants. In which region would cell division not occur? shoot apex. wood. expanding leaf. cambium between wood & bark.Question #11: The vascular cambium normally gives rise to: Primary phloem Secondary xylem Periderm PhellodermQuestion #12: Root hairs develop from the region of: Elongation Root cap Meristematic activity MaturationQuestion #13: The balloon shaped structures called tyloses Originate in the lumen of vessels Characterize the sapwood Are extensions of xylem parenchyma cells into vessels Are linked to the ascent of sap through xylem vesselsQuestion #14: Cortex is the region found between Epidermis and stele Pericycle and endodermis Endodermis and pith Endodermis and vascular bundleQuestion #15: Tell the correct order of the components with reference to their arrangement from the outer side to inner side in a woody dicot stem (i) secondary cortex (ii) wood (iii) secondary phloem (iv) phellem The correct order is (iii), (iv), (ii), (i) (i), (ii), (iv), (iii) (iv), (i), (iii), (ii) (iv), (iii), (i), (ii)Question #16: Vascular bundles in monocotyledons are considered closed because Cambium is absent There are no vessels with perforations Xylem is surrounded all around by phloem A bundle sheath surrounds each bundleQuestion #17: A major characteristic of the monocot root is the presence of Scattered vascular bundles Vasculature without cambium Cambium sandwiched between phloem and xylem along the radius Open vascular bundlesQuestion #18: You are given a fairly old piece of dicot stem and a dicot root. Which of the following anatomical structures will you use to distinguish between the two? Cortical cells Secondary xylem Secondary phloem protoxylemQuestion #19: Interfascicular cambium develops from the cells of Endodermis Pericycle Medullary rays Xylem parenchymaQuestion #20: Match the following and choose the correct option from below A. Cuticle i. guard cells B. Bulliform cells ii. single layer C. Stomata iii. waxy layer D. Epidermis iv. empty colourless cell Correct answer is A-iii, B-iv, C-i, D-ii A-i, B-ii, C-iii, D-iv A-iii, B-ii, C-iv, D-i A-iii, B-ii, C-i, D-ivCongratulations, you passed!I'm sorry but you did not achieve the required score. FOR SOLUTION & EXPLANATION WATCH: Also read: vascular tissue systemAlso watch: secondary growth Get weekly Biology Notes, MCQs, Mnemonics and Videos:Share this:Click to share on Facebook (Opens in new window)Click to share on WhatsApp (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Google+ (Opens in new window)Click to share on Telegram (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Tumblr (Opens in new window)Click to email this to a friend (Opens in new window)Like this:Like Loading...Related AuxinsEcology MCQs 2 Leave a Reply Cancel reply This site uses Akismet to reduce spam. Learn how your comment data is processed.