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 possess 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:
1. (a), (c), (d) and (e) only
2. (a), (b) and (d) only
3. (b), (c), (d) and (e) only
4. (a), (b), (c) and (d) only
Subtopic:  Vascular Tissue System |
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In old trees the greater part of secondary xylem is dark brown and resistant to insect attack due to :
a. secretion of secondary metabolites and their deposition in the lumen of vessels.
b. deposition of organic compounds like tannins and resins in the central layers of stem.
c. deposition of suberin and aromatic substances in the outer layer of stem.
d. deposition of tannins, gum, resin and aromatic substances in the peripheral layers of stem.
e. presence of parenchyma cells, functionally active xylem elements and essential oils.
Choose the correct answer from the options given below
1. (b) and (d) Only
2. (a) and (b) Only
3. (c) and (d) Only
4. (d) and (e) Only

Subtopic:  Vascular Tissue System |
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The anatomy of springwood shows some peculiar features. Identify the correct set of statements about springwood.
(a) It is also called as the early wood
(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
Choose the correct answer from the options given below:
1. (c), (d) and (e) Only
2. (a), (b), (d) and (e) Only
3. (a), (c), (d) and (e)Only
4. (a), (b) and (d) Only

Subtopic:  Types of Wood |
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Axillary buds are derived from the activity of : 
1. Lateral meristem 
2. Secondary meristem 
3. Apical meristem 
4. Intercalary meristem

Subtopic:  Meristematic Tissue: Shoot Apex |
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Select the correct statements related to the activity of cork cambium 
1. The outer cells differentiate into phelloderm
2. The cork differentiated from cork cambium, is impervious to water due to deposition of tannins and resins 
3. Cuts the cells only on the outer side 
4. Cuts the cells on inner as well as outer side 

Subtopic:  Activity of Cork Cambium |
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Which of the following is not a character of collenchyma tissue? 
1. They provide mechanical support to the growing part of the plant 
2. They occur in layers below epidermis in dicotyledonous plants 
3. They consist of cells with thick corners due to cellulose deposition 
4. They are usually dead and without protoplasts

Subtopic:  Simple Tissue: Chollenchyma & Sclerenchyma |
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Initiation of lateral roots and vascular cambium during secondary growth takes place in cells of :
1. Epiblema
2. Cortex
3. Endodermis
4. Pericycle
Subtopic:  Anatomy of Root |
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The type of tissue commonly found in the fruit wall of nuts is :
1. Parenchyma
2. Collenchyma
3. Sclerenchyma
4. Sclereid
Subtopic:  Simple Tissue: Chollenchyma & Sclerenchyma |
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Match List I with List II

List - I List - II

a) Cells with

active cell

division capacity

(i) Vascular

tissues

(b) Tissue having

all cells similar in

structure and function

(ii) Meristematic

tissue

(c) Tissue having

different types

of cells

(iii) Sclereids

(d) Dead cells

with highly thickened

walls and narrow lumen

(iv) Simple tissue

Select the correct answer from the options given below.

     (a)     (b)     (c)     (d)

1.  (i)      (ii)     (iii)     (iv)

2.  (iii)     (ii)     (iv)     (i)

3.  (ii)      (iv)    (i)      (iii)

4.  (iv)     (iii)    (ii)      (i)

Subtopic:  Tissue: Introduction & Classification |
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Match List-I with List-II.

List -I  List-I
(a)Lenticels
(b)Cork cambium
(c) Secondary cortex
(d)Cork
(i) Phellogen 
(ii) Suberin deposition
(iii) Exchange of gases
(iv) Phelloderm

Choose the correct answer from the options given below. 

    (a) (b) (c) (d)

1. (ii) (iii) (iv) (i)

2. (iv) (ii) (i) (iii)

3. (iv) (i) (iii) (ii)

4. (iii) (i) (iv) (ii)

Subtopic:  Activity of Cork Cambium |
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