Anatomy of Flowering Plants MCQs | Anatomy of Flowering Plants Short Questions and Answers

Questions
1 The balloon-shaped structures called tyloses
A are linked to the ascent of sap through xylem vessels
B are extensions of xylem parenchyma cells into vessels
C characterize the sapwood
D originate in the lumen of vessels

Answer:are extensions of xylem parenchyma cells into vessels
2 You are given a fairly old piece of dicot stem and a dicot root. Which of the following anatomical structures will you use to distinguish between the two?
A cortical cells
B protoxylem
C secondary phloem
D secondary xylem

Answer: protoxylem
3 This is an incorrect statement for stomatal apparatus
A guard cells are always surrounded by subsidiary cells
B stomata are involved in gaseous exchange
C inner wall of guard cells are thick
D guard cells invariably possess chloroplasts and mitochondria

Answer: guard cells are always surrounded by subsidiary cells
4 Some vascular bundles are described as open because these
A are not surrounded by pericycle
B possess conjunctive tissue between xylem and phloem
C are surrounded by pericycle but no endodermis
D are capable of producing secondary xylem and phloem

Answer:are capable of producing secondary xylem and phloem
5 Heartwood differs from sapwood in
A being susceptible to pathogens and pets
B having dead and non-conducting elements
C presence of fibers and rays
D absence of vessels and parenchyma

Answer: having dead and non-conducting elements
6 Anatomically fairly old dicotyledonous root is distinguished from the dicotyledonous stem by
A absence of secondary xylem
B position of protoxylem
C presence of cortex
D absence of secondary phloem

Answer: position of protoxylem
7 The length of different internodes in a culm of sugarcane is variable because of
A position of axillary buds
B shoot apical meristem
C intercalary meristem
D size of leaf lamina at the node below each internode

Answer: intercalary meristem
8 Passage cells are thin-walled cells found in
A testa of seeds to enable the emergence of growing embryonic axis during seed germination
B central region of style through which the pollen tube towards the ovary
C phloem elements that serve as entry points for substance for transport to other plant parts
D endodermis of roots facilitating rapid transport of water from cortex to pericycle

Answer:endodermis of roots facilitating rapid transport of water from cortex to pericycle
9 The apical meristem of the root is present
A Only in the radical
B Only in adventitious root
C Only in tap roots
D In all the roots

Answer: In all the roots
10 Vascular tissue in flowering plants develops from
A Periblem
B Phellogen
C Dermatogen
D pleorome

Answer: pleorome
11 Palisade parenchyma is absent in leaves of
A Mustard
B Gram
C Syabean
D Sorghum

Answer: Sorghum
12 Casparian strips are the characterstics of
A Cortex
B Endodermis
C Pericycle
D Pith

Answer: Endodermis
13 Root cap is formed by
A Dermatogen
B Vascular cambium
C Calyptrogen
D Wound cambium

Answer: Calyptrogen
14 Lenticels and hydathodes are small pores with which of the the common attributes ?
A They are always closed
B They allow exchange of gases
C Their opening and closing are not regulated
D They are found on the same organ of plant

Answer: They allow exchange of gases
15 The functions of vessel is
A To provide mechanical streant
B Conduction of water and minerals
C Conduction of food only
D All of these

Answer: Conduction of water and minerals
16 Cambium is
A Lateral meristem
B Intercalary meristem
C Primary meristem
D Nome of above

Answer:Primary meristem
17 Cork cell contain
A Suberin
B Cutin
C Lignin
D Pectin

Answer: Suberin
18 Root branches arise from
A Pericycle
B Endodermis
C Cortex
D Epidermis

Answer:Pericycle
19 Procambium forms
A cork cambium
B vascular tissue
C vascular cambium
D intercalary meristem

Answer: vascular tissue
20 Another name of phellogen is
A cork
B phelloderm
C cork cells
D cork cambium

Answer: cork cambium
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