Bark refers to all the tissues
1. External to vascular cambium
2. External to cork cambium
3. Formed earlier in the season
4. Impregnated with suberin
Lignin is a component of the secondary walls of:-
1. Epidermis
2. Collenchyma
3. Sclerenchyma
4. Parenchyma
Which one is true of parenchyma
1.help in storage, secretion and photosynthesis
2.intercellular spaces are schizogenous in origin
3.universal tisssue
4.All of the above
Which of the following is the largest tissue system
1.Epidermal tissue system
2.vascular tissue system
3.Ground tissue system
4.Both 1 and 2
In Ground tissue system, parenchymatous cells are usually present in
1.cortex
2.pericycle
3. pith and medullary rays
4. All of the above
Which one is true for spongy parenchyma
1.abaxially placed to palisade parenchyma
2.oval or round & loosely arranged cells
3. extends to the abaxial epidermis
4.All of the above
The no of stomata are _______on upper and ______lower surface in monocot leaf
1.more, less
2.less, more
3.equal, equal
4.None of the above
Spongy tissue is generally situated towards which side in dorsiventral leaf ?
1. Abaxial
2. Adaxial
3. Upper
4. Ventral
Select incorrect statement with respect to anatomical features of monocot root.
1. Pericycle produces lateral roots and part of vascular cambium
2. Exodermis is present in older roots
3. Conjunctive parenchyma does not produce cambium
4. Well developed pith is present
Casparian strips are present in the endodermis of
1. Monocot stem
2. Dicot root
3. Dicot stem
4. More than one option is correct