Q.1: The _______________ performs various functions like photosynthesis, storage, secretion, etc.
Q.2: The first formed primary xylem elements are called _________.
Q.3: ____________ is the waxy thick layer which often covers the outside of the epidermis and prevents the loss of water.
Q.4: In dicotyledonous stems, ___________ is present between xylem and phloem.
Q.5: The parenchymatous cells which lie between the xylem and the phloem are called ____________________.
a) conjuctive tissue
b) connective tissue
Q.6: _______________ tissue possesses chloroplast and carries out photosynthesis.
Q.7: In grasses, certain adaxial epidermal cells along the veins modify themselves into large, empty, colourless cells known as _______________ cells.
b) bundle sheath
Q.8: Which of the following statements are true about ‘Trichomes’ ?
i) They help in preventing water loss during transpiration.
ii) They are usually multicellular.
iii) They are always branched and stiff.
a) i and ii
b) ii and iii
c) i and iii
Q.9: In the ___________ arrangement, the xylem and phloem within a vascular bundle is arranged in an alternate manner on different radii.
Q.10: The meristematic layer which is responsible for cutting off vascular tissues – xylem and phloem – is called __________________.
a) cork cambium
b) vascular cambium
Q.11: The cells of cambium present between primary xylem and primary phloem in the dicot stems are known as _______________.
a) intrafascicular cambium
b) interfascicular cambium
Q.12: The part of secondary xylem, in old trees, which comprises of dead elements with highly lignified walls is known as ______________.
Q.13: Phellogen, phellem, and phelloderm are collectively known as _____________.