Identify the incorrect statement:

1.  The presence of vessels is a characteristic of angiosperms

2.  In roots the primary xylem is exarch

3.  Gymnosperms lack albuminous cells and sieve cells

4.  Bast fibers are generally absent in primary phloem

Subtopic:  Complex Tissue: Phloem |
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Parts of grasses removed by the grazing herbivores are regenerated due to the activity of: 

1. Apical meristem

2. Intercalary meristem

3. Interfascicular cambium

4. Fascicular vascular cambium

Subtopic:  Meristematic Tissue: Shoot Apex |
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In the dicot root, the vascular cambium:-
1. is absent
2. is completely secondary in origin
3. does not form a continuous ring
4. originates from the tissue just above the phloem bundles

Subtopic:  Anatomy of Root |
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Lignin is a component of the secondary walls of:-

1. Epidermis

2. Collenchyma

3. Sclerenchyma

4. Parenchyma

Subtopic:  Simple Tissue: Chollenchyma & Sclerenchyma |
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The pericycle, which gives rise to lateral roots, consists of:

1. Epithelial cells

2. Meristematic cells

3. Parenchymal cells

4. Endodermal cells

Subtopic:  Anatomy of Root |
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Summer wood is:

(1) the same as heartwood.

(2) found to the outside of each annular ring of xylem.

(3) found to the inside of each annular ring of xylem.

(4) formed throughout the growing season.

Subtopic:  Types of Wood |
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Identify the wrong statement in context of heartwood.

(1) Organic compounds are deposited in it

(2) it is highly durable

(3) It conducts water and minerals efficiently

(4) It comprises dead elements with highly lignified walls

Subtopic:  Types of Wood |
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Which of the following is made up of dead cells?

(1) Xylem parenchyma

(2) Collenchyma

(3) Phellem

(4) Phloem

Subtopic:  Activity of Cork Cambium |
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The vascular cambium normal gives rise to.

(1) phelloderm                                         

(2) primary phloem

(3) secondary xylem                                 

(4) periderm

Subtopic:  Activity of Vascular Cambium |
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Cortex is the region found between

(1) Epidermis and stele

(2) Pericycle and endodermis

(3) Endodermis and pith

(4) Endodermis and vascular bundle

Subtopic:  Anatomy of Root |
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