If the stoma remains surrounded by a limited number of cells which cannot be

distinguished from other epidermal cells, then this type of stomata is known as.

1. perigynous type

2. paracytic type

3. anisocytic type

4. anomocytic type

In the given diagram of section of root of maize, different parts have been indicated by

alphabets. Choose the answer in which these alphabets have been correctly matched

with the parts which they indicate.

1. A = Phloem, B = Xylem, C = Cortex, D = Endodermis, E = Pith, F = Root hair, G =

Epidermis

2. A = Pith, B = Root hair, C = Epiblema, D = Cortex, E = Endodermis, F = Phloem, G

= Xylem

3. A = Root hair, B = Epiblema, C = Cortex, D = Endodermis, E = Pith, F = Xylem, G

= Phloem

4. A = Epiblema, B = Root hair, C = Vascular bundle, D = Cortex, E = Phloem, F =

Xylem, G = Pith

Fascicular cambium separates the xylem and phloem in:-

1. only dicots

2. only monocots

3. both dicots and monocots

4. none of the above.

Epidermis is derived from:-

1. phellogen

2. cambium

3. procambium

4. none of these

Passage cells are found in 

1. Dicot stem

2. Monocot root

3. Monocot stem

4. All of these

In a dicotyledonous stem, the sequence of tissues from the outside to the inside is

(1) phellem – pericycle – endodermis – phloem

(2) phellem – phloem – endodermis – pericycle

(3) phellem – endodermis – pericycle – phloem

(4) pericycle – phellem – endodermis – phloem

The quiescent centre in root meristem serves as:-

1. site for storage of food which is utilized during maturation

2. reservoir of growth hormones

3. reserve for replenishment of damaged cells of the meristem

4. region for absorption of water

The sugarcane plant has:-

1. dumb-bell shaped guard cells

2. pentamerous flowers

3. reticulate venation

4. capsular fruits

In a plant organ which is covered by periderm and in which the stomata are absent, some gaseous exchange still takes place through.

(1) aerenchyma

(2) trichomes

(3) pneumatophores

(4) lenticels

Companion cells in plants are associated with

(1) vessels

(2) sperms

(3) sieve elements

(4) guard cells.