(d) Chlorophyll-containing phloem
- Annular or spiral thickening of lignin are present
in
(a) metaxylem (b)metaphloem
(c) protoxylem (d) protophloem - Angular collenchyma is present in
(a) Althaea (b) Cucurbita
(c) Lactuca (d) Salvia - A simple mechanical tissue with non lignified
walls is
(a) Parenchyma (b) Collenchyma
(c) Sclerenchyma (d) Chlorenchyma - External protective tissues of plants are
(a) Pericycle and cortex
(b) Epidermis and cork
(c) Cork and pericycle
(d) Cortex and epidermis - Angiosperms have
(a) Tracheids only (b) Vessels absent
(c) Vessels present (d) Sieve tubes absent - Sieve tubes are best suited for translocation
because they :
(a) Possess no end wall
(b) Are broader than longer
(c) Possess a broad lumen and perforated wall
end
(d) Possses bordered pits - Size of vascular bundle is dependant on
(a) Size of vein (b) Size of leaf
(c) Size of plant (d) All of these - Collenchyma differs from sclerenchyma in
(a) Retaining protoplasm at maturity
(b) Having thick walls
(c) Having broad lumen
(d) Being meristematic - Epidermal outgrowths are known as
(a) Trichomes (b) Stomata
(c) Prickles (d) Spines - Which of the following is not devoid of
intercellular space?
(a) Apical meristem (b) Intercalary meristem
(c) Parenchyma (d) Collenchyma - The tip of the root apical meristem is capped by
the histogen known as
(a) Periblem (b) Dermatogen
(c) Pleurome (d) Calyptrogen - Which tissue makes up the embryo of a seed
(a) Meristematic tissue
(b) Permanent parenchyma
(c) Collenchyma
(d) Sclerenchyma- Tunica differs from corpus in
(a) Position (b) Rate of growth
(c) Plane of division (d) Rate of activity - The cells of permanent tissue do not divide
because they are
(a) Dead (b) Anucleate
(c) Arrest at G 1 phase (d) Arrested at prophase - Which of the following is not found in the leaf of
a bean plant
(a) Guard cells (b) Chloroplast
(c) Phloem (d) Lenticel - Parenchymatous cells are found in
(a) Pulp of fruits (b) Seeds
(c) endocarp (d) Skin of fruits - Damaged sieve tubes are sealed by the deposition
of
(a) Pectin (b) Callus
(c) Suberin (d) Lignin - Secondary wall is not formed in
(a) Parenchyma (b) Collenchyma
(c) Companion cells (d) All the above
Anatomy of dicotyledonous and
monocotyledonous plants - stem, root,
leaf
- Exarch and polyarch vascular bundles occur in
(a) Monocot stem (b) Monocot root
(c) Dicot stem (d) Dicot root - A correct situation of mesophyll in an isobilateral
grass leaf is shown by
(a) Palisade towards adaxial surface
(b) Palisade towards abaxial surface
(c) Undifferentiated mesophyll
(d) Palisade along both the surface - Endodermis is also called
(a) Bundle sheath (b) Starch sheath
(c) Mesophyll (d) Pith - Largest number of chloroplast is found in
(a) Palisade tissue (b) Spongy tissue
(c) Transfusion tissue (d) Bundle sheath cells - Vascular bundles are scattered in
(a) Bryophytes (b) Dicot root
(c) Dicot stem (d) Monocot stem - Palisade tissue is present in both the sides of leaf
of
(a) Helianthus (b) Nerium
(c) Wheat (d) Maize