The lower surface of the leaf will have more stomata in a
1. dorsiventral leaf

2. isobilateral leaf

3. Both 1 and 2

4. None of these

Subtopic:  Dicot Leaf | Monocot Leaf |
 85%
From NCERT
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A Transverse section of stem is stained first with safranin and then with fast green following the usual schedule of double staining for the preparation of a permanent slide. What would be the colour of the stained xylem and phloem?

1. Red and green

2. Green and red

3. Orange and yellow

4. Purple and orange

Subtopic:  Complex Tissue: Xylem | Complex Tissue: Phloem |
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3. Match the following columns.

Column I

 Column II

A. Cuticle 

B. Bulliform cells 

C. Stomata 

D. Epidermis 

1. Guard cells

2. Single layer

3. Waxylayer

4. Empty colourless cell

Codes
 

Options:   A    B    C    D  
1. 3 4 1 2
2. 1 2 3 4
3.   2  4 1
4. 3 2 1 4

   

Subtopic:  Vascular Tissue System |
 93%
From NCERT
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Cells of this tissue are living and show angular wall thickning. They also provide mechanical support. The tissue is

1. xylem

2. sclerenchyma

3. collenchyma

4. epidermis

Subtopic:  Simple Tissue: Chollenchyma & Sclerenchyma |
 87%
From NCERT
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6. Epiblema of roots is equivalent to

(a) pericycle

(b) endodermis

(c) epidermis

(d) stele

Subtopic:  Anatomy of Root |
 86%
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A conjoint and open vascular bundle will be observed in the transverse section of

1. monocot root

2. monocot stem

3. dicot root

4. dicot stem

Subtopic:  Vascular Tissue System |
 77%
From NCERT
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Phellogen and phellem respectively denote

1. cork and cork cambium

2. cork cambium and cork

3. secondary cortex and cork

4. cork and secondary cortex

Subtopic:  Activity of Cork Cambium |
 76%
From NCERT
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10. In which of the following pairs of parts of a flowering plant is epidermis absent?

(a) Root tip and shoot tip

(b) Shoot bud and floral bud

(c) Ovule and seed

(d) Petiole and pedicel

Subtopic:  Epidermal Tissue System |
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A piece of wood having no vessels (trachea) must belong to

1. teak

2. mango

3. pine

4. palm

Subtopic:  Complex Tissue: Xylem |
 69%
From NCERT
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A plant tissue, when stained, showed the presence of hemicellulose and pectin in the cell walls of its cells. The tissue represents

1. collenchyma

2. sclerenchyma

3. xylem

4. meristem

 

Subtopic:  Simple Tissue: Chollenchyma & Sclerenchyma |
 94%
From NCERT
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