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Anatomy Of Flowering Plants

324 Questions Start Errorless Test
All Exams Allen Errorless
AMU (Med.) 2010 Q51 Errorless 4. Secondary growth MCQ
Which one of the following is not correct
A.
Early wood is characterized by large number of xylary elements
B.
Early wood is characterized by vessels with wider cavities
C.
Late wood is characterized by large number of xylary elements
D.
Late wood is characterized by vessels with narrower cavities
Odisha JEE 2010 Q52 Errorless 4. Secondary growth MCQ
The function of cork cambium (phellogen) is to produce
A.
Cork and secondary cortex
B.
Secondary xylem and secondary phloem
C.
Cork
D.
Secondary cortex and phloem
CBSE PMT (Pre.) 2010 Q53 Errorless 4. Secondary growth MCQ
Heartwood differs from sapwood in
A.
Being susceptible to pests and pathogens
B.
Presence of rays and fibres
C.
Absence of vessels and parenchyma
D.
Having dead and non-conducting elements
K-CET 2010 Q54 Errorless 7. Assertion and Reason MCQ
Assertion: Sclerenchyma cells do not have plasmodesmata. Reason: The cell walls of some permanent tissues are heavily lignified.
A.
If both assertion and reason are true and the reason is the correct explanation of the assertion.
B.
If both assertion and reason are true but reason is not the correct explanation of the assertion.
C.
If assertion is true but reason is false.
D.
If the assertion and reason both are false.
E.
If assertion is false but reason is true.
EAMCET 2009 Q55 Errorless 1. Tissue(General) MCQ
From evolutionary point of view, tracheids and sieve cells are more primitive than tracheae and sieve tubes respectively. The angiosperms have
A.
Tracheae and sieve tubes
B.
Tracheids, tracheae and sieve tubes
C.
Tracheids, sieve cells and sieve tubes
D.
Tracheids, tracheae and sieve cells
Kerala PMT 2009 Q56 Errorless 1. Tissue(General) MCQ
At maturity the sieve plates become impregnated with
A.
Cellulose
B.
Pectin
C.
Suberin
D.
Lignin
E.
Callose
Kerala PMT 2009 Q57 Errorless 1. Tissue(General) MCQ
Consider the following statements and choose the correct option
(i) The thread like cytoplasmic strands, running from one cell to other is known as plasmodesmata
(ii) Xylem and phloem constitute the vascular bundle of the stem
(iii) The first form xylem elements are described as metaxylem
(iv) Radial vascular bundles are mainly found in the leaves
A.
i is true, but ii, iii and iv are wrong
B.
ii is true, but i, iii and iv are wrong
C.
iii is true, but i, ii and iv are wrong
D.
iv is true, but i, ii and iii are wrong
E.
i and ii are true, but iii and iv are wrong
Odisha JEE 2009 Q58 Errorless 1. Tissue(General) MCQ
Tunica corpus theory is related with
A.
Root apex
B.
Lateral meristems
C.
Root cap
D.
Shoot apex (apical meristem)
AMU (Med.) 2009 Q59 Errorless 1. Tissue(General) MCQ
The plant tissues commonly found in fruit walls of nuts and pulp of some fruits like guava are termed as Or Pear fruits are gritty due to the presence of [J & K CET 2012] Or Tissue composed of non-parenchymatous cells and have isodiametric or irregular shape is called
A.
Fibres
B.
Tracheids
C.
Sclereids
D.
Vessels
AMU (Med.) 2009 Q60 Errorless 1. Tissue(General) MCQ
Starch sheath is another name of
A.
Hypodermis
B.
Epidermis
C.
Casparian strip
D.
None of these
MP PMT 2009 Q61 Errorless 1. Tissue(General) MCQ
Which of the following tissues consist of living cells
A.
Vessels
B.
Tracheids
C.
Companion cell
D.
Sclerenchyma
Odisha JEE 2009; AFMC 2012 Q62 Errorless 2. The tissue system MCQ
A stele with a central core of xylem surrounded by phloem is called or Actinostele is a modification of Or Pith is absent in
A.
Protostele
B.
Siphonostele
C.
Solenostele
D.
Dictyostele
CBSE PMT 2009 Q63 Errorless 2. The tissue system MCQ
Reduction in vascular tissue mechanical tissue and cuticle is characteristic of
A.
Xerophytes
B.
Mesophytes
C.
Epiphyttes
D.
Hydrophytes
CBSE PMT 2009 Q64 Errorless 3. Internal structure of root, stem and leaf MCQ
The annular and spirally thickened conducting elements generally develop in the protoxylem when the root or stem is
A.
Maturing
B.
Elongating
C.
Widening
D.
Differentiatina
CBSE PMT 2009 Q65 Errorless 3. Internal structure of root, stem and leaf MCQ
In barley stem vascular bundles are [NCERT Pg. No. 75]
A.
Open and scattered
B.
Closed and scattered
C.
Open and in a ring
D.
Closed and radial
CBSE PMT 2009, 14; Odisha JEE 2011 Q66 Errorless 3. Internal structure of root, stem and leaf MCQ
Anatomically fairly old dicotyledonous root is distinguished from the dicotyledonous stem by
A.
Absence of secondary xylem
B.
Absence of secondary phloem
C.
Presence of cortex
D.
Position of protoxylem
CBSE PMT 2009 Q67 Errorless 3. Internal structure of root, stem and leaf MCQ
Palisade parenchyma is absent in leaves of
A.
Sorghum
B.
Mustard
C.
Soybean
D.
Gram
NCERT; Odisha JEE 2009 Q68 Errorless 4. Secondary growth MCQ
Lenticels are
A.
Loose cells on leaves
B.
Subsidiary cells of stomata
C.
Cells for respiration in epiphytes
D.
Some loose cells on bark meant for aeration
DUMET 2009 Q69 Errorless 4. Secondary growth MCQ
In an annual ring, the light coloured part is known as
A.
Early wood
B.
Late wood
C.
Heartwood
D.
Sapwood
KCET 2009 Q70 Errorless 4. Secondary growth MCQ
What is/are true about heart wood A. It does not help in water conduction B. It is also called alurnum C. It is dark in colour but very soft D. It has tracheary element which are filled with tannin, resin, etc.
A.
B, C and D
B.
A and D
C.
B and D
D.
A, B and C
Kerala PMT 2009 Q71 Errorless 6. Critical Thinking MCQ
Match the following and choose the correct combination
Column-IColumn-II
(A)Endodermis
(B)Stomata
(C)Sieve tube
(D)Periderm
(E)Mesophyll
(P)Companion cells
(Q)Lenticels
(R)Palisade cells
(S)Passage cells
(T)Accessory cells
A.
Aā€“S, Bā€“T, Cā€“Q, Dā€“P, Eā€“R
B.
Aā€“T, Bā€“R, Cā€“P, Dā€“Q, Eā€“S
C.
Aā€“S, Bā€“T, Cā€“P, Dā€“Q, Eā€“R
D.
Aā€“Q, Bā€“T, Cā€“R, Dā€“S, Eā€“P
E.
Aā€“S, Bā€“Q, Cā€“T, Dā€“R, Eā€“P
EAMCET 2009 Q72 Errorless 7. Assertion and Reason MCQ
Assertion: Apical and intercalary meristems contribute to the growth in length, while the lateral meristems bring increase in girth in maize. Reason: Apical and intercalary meristems always increase the height of plants.
A.
If both assertion and reason are true and the reason is the correct explanation of the assertion.
B.
If both assertion and reason are true but reason is not the correct explanation of the assertion.
C.
If assertion is true but reason is false.
D.
If the assertion and reason both are false.
E.
If assertion is false but reason is true.
Odisha JEE 2008 Q73 Errorless 1. Tissue(General) MCQ
Shoot apical meristem is found on the tip of
A.
Plumule
B.
Radicle
C.
Root
D.
Apex
Odisha JEE 2008 Q74 Errorless 1. Tissue(General) MCQ
Parenchymatous cells filling the space between dermal and vascular tissue is
A.
Ground tissue
B.
Epidermal tissue
C.
Pith
D.
Vascular bundles
Kerala PMT 2008 Q75 Errorless 1. Tissue(General) MCQ
Which of the following statements is/are true
(A) Uneven thickening of cell wall is characteristic of sclerenchyma
(B) Periblem forms the cortex of the stem and the root
(C) Tracheids are the chief water transporting elements in gymnosperms
(D) Companion cell is devoid of nucleus at maturity
(E) The Commercial cork is obtained from Quercus suber
A.
A and D only
B.
B and E only
C.
C and D only
D.
A, B and C only
E.
B, C and E only