Plant
CHAPTER
5 Morphology
prACtiCe Questions
The Root
1. Angiosperms are characterized by the presence of
(a) Roots and stem (b) Leaf and flowers (c) Fruit (d) All of these
2. In majority of dicot, the direct elongation of the radicle leads to the formation of
(a) Primary root (b) Secondary root (c) Tertiary root (d) None of these
3. The primary root and its branches constitute
(a) Fibrous root system (b) Tap root system
(c) Both (a) and (b) (d) None of these
4. In wheat (monocot)
(a) Primary root is short lived
(b) Primary root replaced by fibrous roots
(c) Fibrous roots arises from the base of stem
(d) All are correct
5. Adventitious roots are found in
(a) Grass (b) Monestra (c) Banyan tree (d) All of these
6. Adventitious roots arise from part other than
(a) Hypocotyl (b) Epicotyl (c) Plumule (d) Radicle
7. Functions of root are
(a) Absorption of water and mineral from soil
(b) Anchoring of plant in soil
(c) Storage of food material and synthesis of plant growth regulator
(d) All of these
8. What is the number of regions in which a root is divided?
(a) 1 (b) 2 (c) 3 (d) 4
9. Root is covered at the apex by a thimble-like structure called
(a) Root cap (b) Radicle (c) Coleorhiza (d) Coleoptile
10. The root region is arranged proximal to distal part in the following manner
(a) Zone of cell elongation‒ Zone of cell maturation ‒ Zone of cell division
(b) Zone of cell division ‒ Zone of cell elongation ‒ Zone of cell maturation
(c) Zone of cell maturation‒ Zone of cell elongation ‒ Zone of cell division
(d) Zone of cell maturation ‒ Zone of cell division ‒ Zone of cell elongation
,5.4 Plant Morphology
11. Root hairs arise from
(a) Zone of cell division (b) Zone of cell elongation
(c) One of cell maturation (d) All of these
12. Find out the incorrect statement:
(a) Root hair absorbs water and mineral from the soil.
(b) Root increases in length due to region of elongation.
(c) Meristematic region have thin walled cell with dense cytoplasm.
(d) Root cannot synthesize plant growth regulators.
13. Which of the following is an exception for the modification of the tap root?
(a) Carrot (b) Turnip (c) Sweet potato (d) All of these
14. Prop or pillar roots are found in
(a) Carrot (b) Sweet potato (c) Banyan tree (d) Maize
15. Maize and sugarcane contain
(a) Storage root (b) Stilt root
(c) Pneumatophores (d) Prop roots
16. Find out the incorrect statement:
(a) Sweet potato has root modification for storage of food.
(b) Still root arises from lower nodes of the stem.
(c) Rizophora posses pneumatophores.
(d) Pneumatophores are meant for anaerobic respiration.
The Stem
17. Which of the following is incorrect of stem?
(a) It is developed from the plumule of embryo of a germinating seed.
(b) It bears nodes and internodes.
(c) It bears only terminal bud not axillary bud.
(d) Its main function is spreading of branches and bear leaves, flowers and fruits.
18. Functions of stem are
(a) Conduct water, mineral and photosynthates.
(b) Some perform storage food, support and protection.
(c) Some perform function of vegetative propagation.
(d) All of these
19. Young stems are generally
(a) Woody (b) Dark brown in color
(c) Green and photosynthetic (d) All of these
20. Underground stem stores food in the following except
(a) Zaminkand (b) Colocasia (c) Ginger (d) Sugarcane
21. Which stem act as an organ of perennation?
(a) Potato (b) Ginger (c) Colocasia (d) All of these
22. Which of the following is a gourd?
(a) Cucumber (b) Pumpkins (c) Watermelon (d) All of these
, Plant Morphology5.5
23. Which of the following is correct about gourds?
(a) Stem tendril develops from apical bud.
(b) Stem tendril are slender and spirally coiled.
(c) Stem tendril doesn’t help in climbing.
(d) Stem tendril develops from radicle.
24. Select the incorrect matching:
(a) Thorn ‒ Citrus, Bougainvillea (b) Flattened stem ‒ Opuntia
(c) Underground stem ‒ Turmeric (d) Stem tendril ‒ Colocasia
25. The lateral branches original from basal and underground portion of the main stem, grow
horizontally beneath the soil and then come out obliquely upward giving rise to leafy shoots
seen in case of
(a) Banana (b) Pineapple (c) Chrysanthemum (d) All of these
26. A slender lateral branch arises from the base of the main axis and after growing aerially for
sometime arch downward to touch the ground seen in case of
(a) Mint (b) Jasmine (c) Pistia (d) Both (a) and (b)
27. A lateral branch with short internodes and each node bearing a rosette of leaves and a tuft of
roots are found in aquatic plants like
(a) Pistia (b) Eichhornia (c) Wolffia (d) Both (a) and (b)
28. Select the correct statement from the following:
A. Fleshy cylindrical stem in Euphorbia carry out photosynthesis.
B. Pistia and eichhornia are example of offset.
C. Underground stem of grass and strawberry spread to new niche and when older part die
new plants are formed.
D. Thorns are woody, straight and pointed.
(a) A and B only (b) B and D only (c) B and C only (d) All of these
29. The most important vegetative organ for photosynthesis is
(a) Stem (b) Leaf (c) Root (d) All of these
The Leaf
30. Which of the following is correct about leaf?
(a) It has originated from root apical meristem.
(b) It is arranged in basipetal order.
(c) It arises from axillary bud.
(d) It bears a bud in its axil.
31. Which of the following is incorrect about leaf?
(a) It is arranged in acropetal order (b) It develops from node
(c) It is generally flattened in shape (d) It is arranged in basipetal order
32. Typical leaf consist of
(a) Petiole (b) Leaf base (c) Lamina (d) All of these
33. The leaf is attached to the stem by the leaf base and may bear two lateral small leaf like
structure called
(a) Leaflet (b) Lamina (c) Stipule (d) Leaf blade
CHAPTER
5 Morphology
prACtiCe Questions
The Root
1. Angiosperms are characterized by the presence of
(a) Roots and stem (b) Leaf and flowers (c) Fruit (d) All of these
2. In majority of dicot, the direct elongation of the radicle leads to the formation of
(a) Primary root (b) Secondary root (c) Tertiary root (d) None of these
3. The primary root and its branches constitute
(a) Fibrous root system (b) Tap root system
(c) Both (a) and (b) (d) None of these
4. In wheat (monocot)
(a) Primary root is short lived
(b) Primary root replaced by fibrous roots
(c) Fibrous roots arises from the base of stem
(d) All are correct
5. Adventitious roots are found in
(a) Grass (b) Monestra (c) Banyan tree (d) All of these
6. Adventitious roots arise from part other than
(a) Hypocotyl (b) Epicotyl (c) Plumule (d) Radicle
7. Functions of root are
(a) Absorption of water and mineral from soil
(b) Anchoring of plant in soil
(c) Storage of food material and synthesis of plant growth regulator
(d) All of these
8. What is the number of regions in which a root is divided?
(a) 1 (b) 2 (c) 3 (d) 4
9. Root is covered at the apex by a thimble-like structure called
(a) Root cap (b) Radicle (c) Coleorhiza (d) Coleoptile
10. The root region is arranged proximal to distal part in the following manner
(a) Zone of cell elongation‒ Zone of cell maturation ‒ Zone of cell division
(b) Zone of cell division ‒ Zone of cell elongation ‒ Zone of cell maturation
(c) Zone of cell maturation‒ Zone of cell elongation ‒ Zone of cell division
(d) Zone of cell maturation ‒ Zone of cell division ‒ Zone of cell elongation
,5.4 Plant Morphology
11. Root hairs arise from
(a) Zone of cell division (b) Zone of cell elongation
(c) One of cell maturation (d) All of these
12. Find out the incorrect statement:
(a) Root hair absorbs water and mineral from the soil.
(b) Root increases in length due to region of elongation.
(c) Meristematic region have thin walled cell with dense cytoplasm.
(d) Root cannot synthesize plant growth regulators.
13. Which of the following is an exception for the modification of the tap root?
(a) Carrot (b) Turnip (c) Sweet potato (d) All of these
14. Prop or pillar roots are found in
(a) Carrot (b) Sweet potato (c) Banyan tree (d) Maize
15. Maize and sugarcane contain
(a) Storage root (b) Stilt root
(c) Pneumatophores (d) Prop roots
16. Find out the incorrect statement:
(a) Sweet potato has root modification for storage of food.
(b) Still root arises from lower nodes of the stem.
(c) Rizophora posses pneumatophores.
(d) Pneumatophores are meant for anaerobic respiration.
The Stem
17. Which of the following is incorrect of stem?
(a) It is developed from the plumule of embryo of a germinating seed.
(b) It bears nodes and internodes.
(c) It bears only terminal bud not axillary bud.
(d) Its main function is spreading of branches and bear leaves, flowers and fruits.
18. Functions of stem are
(a) Conduct water, mineral and photosynthates.
(b) Some perform storage food, support and protection.
(c) Some perform function of vegetative propagation.
(d) All of these
19. Young stems are generally
(a) Woody (b) Dark brown in color
(c) Green and photosynthetic (d) All of these
20. Underground stem stores food in the following except
(a) Zaminkand (b) Colocasia (c) Ginger (d) Sugarcane
21. Which stem act as an organ of perennation?
(a) Potato (b) Ginger (c) Colocasia (d) All of these
22. Which of the following is a gourd?
(a) Cucumber (b) Pumpkins (c) Watermelon (d) All of these
, Plant Morphology5.5
23. Which of the following is correct about gourds?
(a) Stem tendril develops from apical bud.
(b) Stem tendril are slender and spirally coiled.
(c) Stem tendril doesn’t help in climbing.
(d) Stem tendril develops from radicle.
24. Select the incorrect matching:
(a) Thorn ‒ Citrus, Bougainvillea (b) Flattened stem ‒ Opuntia
(c) Underground stem ‒ Turmeric (d) Stem tendril ‒ Colocasia
25. The lateral branches original from basal and underground portion of the main stem, grow
horizontally beneath the soil and then come out obliquely upward giving rise to leafy shoots
seen in case of
(a) Banana (b) Pineapple (c) Chrysanthemum (d) All of these
26. A slender lateral branch arises from the base of the main axis and after growing aerially for
sometime arch downward to touch the ground seen in case of
(a) Mint (b) Jasmine (c) Pistia (d) Both (a) and (b)
27. A lateral branch with short internodes and each node bearing a rosette of leaves and a tuft of
roots are found in aquatic plants like
(a) Pistia (b) Eichhornia (c) Wolffia (d) Both (a) and (b)
28. Select the correct statement from the following:
A. Fleshy cylindrical stem in Euphorbia carry out photosynthesis.
B. Pistia and eichhornia are example of offset.
C. Underground stem of grass and strawberry spread to new niche and when older part die
new plants are formed.
D. Thorns are woody, straight and pointed.
(a) A and B only (b) B and D only (c) B and C only (d) All of these
29. The most important vegetative organ for photosynthesis is
(a) Stem (b) Leaf (c) Root (d) All of these
The Leaf
30. Which of the following is correct about leaf?
(a) It has originated from root apical meristem.
(b) It is arranged in basipetal order.
(c) It arises from axillary bud.
(d) It bears a bud in its axil.
31. Which of the following is incorrect about leaf?
(a) It is arranged in acropetal order (b) It develops from node
(c) It is generally flattened in shape (d) It is arranged in basipetal order
32. Typical leaf consist of
(a) Petiole (b) Leaf base (c) Lamina (d) All of these
33. The leaf is attached to the stem by the leaf base and may bear two lateral small leaf like
structure called
(a) Leaflet (b) Lamina (c) Stipule (d) Leaf blade
