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Anatomy Of Flowering Plants

212 Questions Start Allen Test
All Exams Allen
Q101 Allen PYQ MCQ
Which of the following is made up of dead cells?
A.
Collenchyma
B.
Phellem
C.
Phloem
D.
Xylem parenchyma
Q102 Allen PYQ MCQ
Identify the wrong statement in context of heartwood:
A.
It is highly durable
B.
It conducts water and minerals efficiently
C.
It comprises dead elements with highly lignified walls
D.
Organic compounds are deposited in it
Q103 Allen PYQ MCQ
Stomata in grass leaf are
A.
Dumb-bell shaped
B.
Kidney shaped
C.
Rectangular
D.
Barrel shaped
Q104 Allen PYQ MCQ
Secondary xylem and phloem in dicot stem are produced by
A.
Apical meristems
B.
Vascular cambium
C.
Phellogen
D.
Axillary meristems
Q105 Allen PYQ MCQ
Casparian strips occur in
A.
Epidermis
B.
Pericycle
C.
Cortex
D.
Endodermis
Q106 Allen PYQ MCQ
Plants having little or no secondary growth are:
A.
Grasses
B.
Deciduous angiosperms
C.
Conifers
D.
Cycads
Q107 Allen PYQ MCQ
Xylem translocates :-
A.
Water only
B.
Water and mineral salts only
C.
Water, mineral salts and some organic nitrogen only
D.
Water, mineral salts, some organic nitrogen and hormones
Q108 Allen PYQ MCQ
Grass leaves curl inwards during very dry weather. Select the most appropriate reason from the following :
A.
Closure of stomata
B.
Flaccidity of bulliform cells
C.
Shrinkage of air spaces in spongy mesophyll
D.
Tyloses in vessels
Q109 Allen PYQ MCQ
Phloem in gymnosperms lacks :
A.
Albuminous cells and sieve cells
B.
Sieve tubes only
C.
Companion cells only
D.
Both sieve tubes and companion cells
Q110 Allen PYQ MCQ
Which of the statements given below is not true about formation of Annual Rings in trees?
A.
Annual ring is a combination of spring wood and autumn wood produced in a year.
B.
Differential activity of cambium causes light and dark bands of tissue - early and late wood respectively
C.
Activity of cambium depends upon variation in climate.
D.
Annual rings are not prominent in trees of temperate region.
Q111 Allen PYQ MCQ
In the dicot root the vascular cambium originates from :-
A.
Tissue located below the phloem bundles and a portion of pericycle tissue above protoxylem.
B.
Cortical region.
C.
Parenchyma between endodermis and pericycle.
D.
Intrafascicular and interfascicular tissue in a ring.
Q112 Allen PYQ MCQ
Regeneration of damaged growing grass following grazing is largely due to :-
A.
Lateral meristem
B.
Apical meristem
C.
Intercalary meristem
D.
Secondary meristem
Q113 Allen PYQ MCQ
The transverse section of a plant shows following anatomical features:
(a) Large number of scattered vascular bundles surrounded by bundle sheath.
(b) Large conspicuous parenchymatous ground tissue.
(c) Vascular bundles conjoint and closed.
(d) Phloem parenchyma absent.
Identify the category of plant and its part :-
A.
Dicotyledonous root
B.
Monocotyledonous stem
C.
Monocotyledonous root
D.
Dicotyledonous stem
Q114 Allen PYQ MCQ
Identify the incorrect statement.
A.
Due to deposition of tannins, resins, oils etc., heart wood is dark in colour
B.
Heart wood does not conduct water but gives mechanical support
C.
Sapwood is involved in conduction of water and minerals from root to leaf
D.
Sapwood is the innermost secondary xylem and is lighter in colour
Q115 Allen PYQ MCQ
Large, empty colourless cells of the adaxial epidermis along the veins of grass leaves are
A.
Lenticels
B.
Guard cells
C.
Bundle sheath cells
D.
Bulliform cells
Q116 Allen PYQ MCQ
Which of the following statements about cork cambium is incorrect?
A.
It forms secondary cortex on its outer side
B.
It forms a part of periderm
C.
It is responsible for the formation of lenticels
D.
It is a couple of layers thick
Q117 Allen PYQ Match the Columns
Match Column-I with Column-II.

Select the correct answer from the options given below.
Column-IColumn-II
(a)Cells with active cell division capacity
(b)Tissue having all cells similar in structure and function
(c)Tissue having different types of cells
(d)Dead cells with highly thickened walls and narrow lumen
(i)Vascular tissues
(ii)Meristematic tissue
(iii)Sclereids
(iv)Simple tissue
A.
a-ii b-iv c-i d-iii
B.
a-iv b-iii c-ii d-i
C.
a-i b-ii c-iii d-iv
D.
a-iii b-ii c-iv d-i
Q118 Allen PYQ Match the Columns
Match Column -I with Column -II.

Choose the correct answer from the options given below.
Column-IColumn-II
(a)Lenticels
(b)Cork cambium
(c)Secondary cortex
(d)Cork
(i)Phellogen
(ii)Suberin deposition
(iii)Exchange of gases
(iv)Phelloderm
A.
a-iv, b-i, c-iii, d-ii
B.
a-iii, b-i, c-iv, d-ii
C.
a-ii, b-iii, c-iv, d-i
D.
a-iv, b-ii, c-i, d-iii
Q119 Allen PYQ MCQ
Select the correct pair.
A.
Large colorless empty ā€“ Subsidiary cells
cells in the epidermis
of grass leaves
B.
In dicot leaves, vascular ā€“ Conjunctive bundles are surrounded tissue by large thick-walled cells
C.
Cells of medullary rays ā€“ Interfascicular that form part of cambium cambial ring
D.
Loose parenchyma cells ā€“ Spongy rupturing the epidermis parenchyma and forming a lens-shaped opening in bark
Q120 Allen PYQ MCQ
Read A to D and tell the correct order of components from outer side to inner side in a young dicot stem. () Cortex (B) Pericycle (C) Epidermis (D) Pith
A.
C, D, B, A
B.
A, B, C, D
C.
C, A, B, D
D.
C, B, A, D
Q121 Allen PYQ MCQ
During secondary growth in dicot stem, cork cambium or phellogen usually develops in
A.
Epidermal region
B.
Cortex region
C.
Pericycle region
D.
Pith region
Q122 Allen PYQ MCQ
Transport of water and mineral in higher plants takes place through
A.
Sieve elements
B.
Companion cells
C.
Tracheids
D.
Transfusion tissue
Q123 Allen PYQ MCQ
Read the following statements about the vascular bundles :- (a) In roots, xylem and phloem in a vascular bundle are arranged in an alternate manner along the different radii. (b) Conjoint closed vascular bundles do not process cambium. (c) In open vascular bundles, cambium is present in between xylem and phloem. (d) The vascular bundles of dicotyledonous stem possess endarch protoxylem. (e) In monocotyledonous root, usually there are more than six xylem bundles present.
Choose the correct answer from the options given below :-
A.
(b), (c), (d) and (e) only
B.
(a), (b), (c) and (d) only
C.
(a), (c), (d) and (e) only
D.
(a), (b) and (d) only
Q124 Allen PYQ MCQ
The anatomy of springwood shows some peculiar features. Identify the correct set of statements about springwood.
A.
It is also called as the earlywood
B.
In spring season cambium produces xylem elements with narrow vessels
C.
It is lighter in colour.
D.
The springwood along with autumn-wood shows alternate concentric rings forming annual rings.
E.
It has lower density
Q125 Allen PYQ MCQ
Select the correct statement related to the activity of cork cambium.
A.
The cork differentiated from cork cambium, is impervious to water due to deposition of tannins and resins
B.
Cuts the cells only on the outer side
C.
Cuts the cells on inner as well as outer side.
D.
The outer cells differentiate into phelloderm