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JIPMER 2010
Exam
JIPMER
Year
2010
Subject
Botany
Chapter
Anatomy of Flowering Plants

JIPMER 2010 · Botany · Anatomy of Flowering Plants

What differentiates leaf of dicots from monocots?

What differentiates leaf of dicots from monocots?

Options

  1. AParallel venation
  2. BDifferentiation of palisade and spongy parenchyma
  3. CStomata only on upper side
  4. DStomata both on upper and lower sides

Correct answer

B. Differentiation of palisade and spongy parenchyma

Step-by-step solution

Main differences between dicot and monocot leaves are as follows : <tableclass="qx−match−listqx−match−table"border="1"cellpadding="6"cellspacing="0"><tr><td>Character<table class="qx-match-list qx-match-table" border="1" cellpadding="6" cellspacing="0"><tr><td>CharacterDicot leafMonocot leafTypeofleaf</td></tr><tr><td>Stomata\begin{array}{l} Type of leaf</td></tr><tr><td>Stomata \end{array}Dorsiventral</td></tr><tr><td>Usuallymoreon</td></tr><tr><td>lowerepidermis\begin{array}{l} Dorsiventral</td></tr><tr><td>Usually more on</td></tr><tr><td>lower epidermis \end{array}Isobilateral</td></tr><tr><td>Equalonlower</td></tr><tr><td>andupperepidermis\begin{array}{l} Isobilateral</td></tr><tr><td>Equal on lower</td></tr><tr><td>and upper epidermis \end{array}</td></tr><tr><td>Mesophyll</td></tr><tr><td>MesophyllDifferentiated</td></tr><tr><td>intopalisadeand</td></tr><tr><td>spongyparenchyma</td></tr><tr><td>Madeupof</td></tr><tr><td>Bndifferentiated</td></tr><tr><td>parencyma.Justspongyand</td></tr><tr><td>aboveandbelow</td></tr><tr><td>thevascularbundles.Some</td></tr><tr><td>parenchymatouscellsor</td></tr><tr><td>collenchymatouscellsarepresent</td></tr><tr><td>uptoepidermis.\begin{array}{l} Differentiated</td></tr><tr><td>into palisade and</td></tr><tr><td>spongy parenchyma</td></tr><tr><td>Made up of</td></tr><tr><td>Bndifferentiated</td></tr><tr><td>parencyma. Just spongy and</td></tr><tr><td>above and below</td></tr><tr><td>the vascular bundles. Some</td></tr><tr><td>parenchymatouscells or</td></tr><tr><td>collenchymatouscells are present</td></tr><tr><td>upto epidermis. \end{array}Madeupofparenchymabut</td></tr><tr><td>justaboveand</td></tr><tr><td>lelowthevascularbundlesare</td></tr><tr><td>sclerenchymatouscells\begin{array}{l} Made up of parenchyma but</td></tr><tr><td>just above and</td></tr><tr><td>lelow the vascular bundles are</td></tr><tr><td>sclerenchymatous cells \end{array}Bulliform cells</td><td></td><td>Present,these</td></tr><tr><td>cellshelpinrollingandunrolling</td></tr><tr><td>ofleaves.</td></tr><tr><td>Parallel\begin{array}{l} Present, these</td></tr><tr><td>cells help in rolling and unrolling</td></tr><tr><td>of leaves.</td></tr><tr><td>Parallel \end{array}</td></tr><tr><td>Venation</td></tr><tr><td>VenationReticulate\begin{array}{l} Reticulate \end{array}$
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