In Gymnosperms, the activity of sieve cells are controlled by _____.

(a)

Nearby sieve tube members

(b)

Phloem parenchyma cells

(c)

Nucleus of companion cells

(d)

Nucleus of albuminous cells

Grafting is successful in dicots but not in monocots because the dicots have _______.

(a)

Vascular bundles arranged in a ring

(b)

Cambium for secondary growth

(c)

Vessels with elements arranged end to end

(d)

Cork cambium

Identify the correctly matched pair.

(a)

Bicollateral vascular bundles - cucurbita pepo

(b)

Amphicribal vascular bundles - dracaena

(c)

Amphivasal vascular bundles - prunus

(d)

Open vascular bundles - stem of Zea mays

In a vertical section of a typical dicot leaf, the phloem in the mid-vein is situated

(a)

Facing the lower epidermis

(b)

Facing the upper epidermis

(c)

Facing sideways

(d)

All around the xylem

Ground tissue includes ___________

(a)

All tissues external to endodermis

(b)

All tissues except epidermis & vascular bundles

(c)

Epidermis & cortex

(d)

All tissues internal to endodermis

The term ____________ was coined by Nageli.

(a)

Tracheids

(b)

Meristem

(c)

Histogen

(d)

Apical

The inactive region in root promeristem is called _____________

(a)

Korper zone

(b)

Quiescent centre

(c)

Kappe zone

(d)

Calyptrogen

Why the cells of sclerenchyma and tracheids become dead?

What makes the pulp of pear gritty?

How is the study of plant anatomy useful to us?

What is the function of a guard cell?

What are albuminous cells?

What are passage cells?

Explain open vascular bundle?

What is aerenchyma?

Distinguish fibre and sclereids?

Differentiate the features of Monocot and Dicot leaf.

What are Sieve cells?

Differentiate Tracheids and Fibres.

Explain sclereids with their types.

Distinguish the anatomy of dicot root from monocot root.

Distinguish the anatomy of dicot stem from monocot stem.