Chapter No. 16
MULTIPLE CHOICE QUESTIONS
Four possible answers are given for the following questions.
Tick (V) the correct answer.
(1) These cells in plants give support to the baby plants.
(a) Sclerenchyma (b) Collenchymatous (e) Parenchyma (d) Chlorenchyma
(2) In animals of the following structures provide support.
(a) Muscles (b) Cartilage (c) Bones (d) All
(3) An internal hydrostatic pressure called turgor pressure, keep rigid and resistant
to bending to, which of following.
(a) Epidermis (b) Cortex (c) Pith (d) All
(4) The collenchyma and sclerenchyma comprise heavily lignified cells
respectively in.
(a) Xylem and cortex (b) Cortex and xylem
(c) Xylem and phloem (d) Epiderm and cortex
(5) In the stem of sunflower, the vascular bundle are strengthened by additional
sclerenchyma fibers, which form.
(a) Bundle cap (b) Pith (c) Root cap (d) Steel
(6) Turgor pressure is generated by high osmotic pressure of the.
(a) Nucleus (b) Mitochondrion (c) Food vacuole (d) Cell vacuole
(7) Which of following are not selerenchyma cells,
(a) Fibers (b) Trachieds (c) Vessels (d) Collenchyma
(8) Sclerenchyma cells have thick secondary cell walls usually impregnated with.
(a) Lignin (b) Silica (C) Chitin (d) Calcium
(9) These are long and cylindrical and they may exist as solid bundles in xylem or
as bundle caps.
(a) Fibers (b) Tracheids (c) Sclereids (d) Both a and b
(10) Long tubular structures, join end to end to form long water conducting pipe in
xylem.
(a) Fiber— tracheids (b) Tracheid — Vessels
(c) Vessels — sclereides (d) Vessels
(11) Which of following causes most of the increase in stem thickness.
(a) Primary xylem (b) Primary phloem
(C) Secondary phloem (d) Secondary xylem
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Biology Part -11 Chapter No. 16
(12) The inactive non conducting wood is called.
(a) Sapwood (b) Heartwood (c) sclereides (d) Both a and b
(13) Which of following wood accumulates a variety of chemicals such as resins, oils,
gums and tannins.
(a) Heanwood (b) Sap wood (c) Cork (d) Bark
(14) These movements are spontaneous movements due to internal causes.
(a) Autonotic movements (b) Paratonie movetnent
(c) Tactic movement (d) Turgor movement
(15) These are the movements of an entire cell or organism i.e. locomotion due to internal
stimulus.
(a) Autonotic movements (b) Tactic movements
(c) Turgor movements (d) Growth movements
(16) It is a movement in response to stimulus of light towards the source of light.
(a) Phototactic movement (b) Chemotactic movement
(c) Positive chemotactic movement (d) Positive phototactic movement
(17) The movements shown by sperms of liver-worts, mosses, ferns towards archegonia
in response to stimulus of nucleic acid released by the ovum is example of.
(a) Autonotic movement (b) Tactic movement
(c) •eve phototactic movement (d) Chemotactic movement
(18) The upper surface of leaf in bud condition shows more growth as compared with the
lower surface.
(a) Epinasty (b) Hyponasty (c) Photonasty (d) None
(19) If growth in the lower surface of the leaf in bud condition is more than that of the
upper surface then the bud will.
(a) Open (b) Remain closed (c) Wild (d) Bloom
(20) The growing tip of young stem moves in a zigzag fashion due to alternate changes
in growth on opposite side of the apex, This mode of growth is called.
(a) Epinasty (b) Hyponasty (c) Nyctinasty (d) Nutation
(21) It is the movement in response to stimulus of touch, for example climbing vines.
(a) Thigmotropism (b) Nutation (c) Hyponasty (d) None
(22) The growth of roots toward water is due to positive.
(a)Geotropism (b)Phototropism (c)Hydrotropism (d)chemo-tropism
— Il
(a) (b) (c) (d)
MULTIPLE CHOICE QUESTIONS
Four possible answers are given for the following questions.
Tick (V) the correct answer.
(1) These cells in plants give support to the baby plants.
(a) Sclerenchyma (b) Collenchymatous (e) Parenchyma (d) Chlorenchyma
(2) In animals of the following structures provide support.
(a) Muscles (b) Cartilage (c) Bones (d) All
(3) An internal hydrostatic pressure called turgor pressure, keep rigid and resistant
to bending to, which of following.
(a) Epidermis (b) Cortex (c) Pith (d) All
(4) The collenchyma and sclerenchyma comprise heavily lignified cells
respectively in.
(a) Xylem and cortex (b) Cortex and xylem
(c) Xylem and phloem (d) Epiderm and cortex
(5) In the stem of sunflower, the vascular bundle are strengthened by additional
sclerenchyma fibers, which form.
(a) Bundle cap (b) Pith (c) Root cap (d) Steel
(6) Turgor pressure is generated by high osmotic pressure of the.
(a) Nucleus (b) Mitochondrion (c) Food vacuole (d) Cell vacuole
(7) Which of following are not selerenchyma cells,
(a) Fibers (b) Trachieds (c) Vessels (d) Collenchyma
(8) Sclerenchyma cells have thick secondary cell walls usually impregnated with.
(a) Lignin (b) Silica (C) Chitin (d) Calcium
(9) These are long and cylindrical and they may exist as solid bundles in xylem or
as bundle caps.
(a) Fibers (b) Tracheids (c) Sclereids (d) Both a and b
(10) Long tubular structures, join end to end to form long water conducting pipe in
xylem.
(a) Fiber— tracheids (b) Tracheid — Vessels
(c) Vessels — sclereides (d) Vessels
(11) Which of following causes most of the increase in stem thickness.
(a) Primary xylem (b) Primary phloem
(C) Secondary phloem (d) Secondary xylem
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Biology Part -11 Chapter No. 16
(12) The inactive non conducting wood is called.
(a) Sapwood (b) Heartwood (c) sclereides (d) Both a and b
(13) Which of following wood accumulates a variety of chemicals such as resins, oils,
gums and tannins.
(a) Heanwood (b) Sap wood (c) Cork (d) Bark
(14) These movements are spontaneous movements due to internal causes.
(a) Autonotic movements (b) Paratonie movetnent
(c) Tactic movement (d) Turgor movement
(15) These are the movements of an entire cell or organism i.e. locomotion due to internal
stimulus.
(a) Autonotic movements (b) Tactic movements
(c) Turgor movements (d) Growth movements
(16) It is a movement in response to stimulus of light towards the source of light.
(a) Phototactic movement (b) Chemotactic movement
(c) Positive chemotactic movement (d) Positive phototactic movement
(17) The movements shown by sperms of liver-worts, mosses, ferns towards archegonia
in response to stimulus of nucleic acid released by the ovum is example of.
(a) Autonotic movement (b) Tactic movement
(c) •eve phototactic movement (d) Chemotactic movement
(18) The upper surface of leaf in bud condition shows more growth as compared with the
lower surface.
(a) Epinasty (b) Hyponasty (c) Photonasty (d) None
(19) If growth in the lower surface of the leaf in bud condition is more than that of the
upper surface then the bud will.
(a) Open (b) Remain closed (c) Wild (d) Bloom
(20) The growing tip of young stem moves in a zigzag fashion due to alternate changes
in growth on opposite side of the apex, This mode of growth is called.
(a) Epinasty (b) Hyponasty (c) Nyctinasty (d) Nutation
(21) It is the movement in response to stimulus of touch, for example climbing vines.
(a) Thigmotropism (b) Nutation (c) Hyponasty (d) None
(22) The growth of roots toward water is due to positive.
(a)Geotropism (b)Phototropism (c)Hydrotropism (d)chemo-tropism
— Il
(a) (b) (c) (d)
