Refer to the given figure and select the correct statement.

i. A, B, and C are histogen of shoot apex
ii. A Gives rise to medullary rays.
iii. B Gives rise to cortex
iv. C Gives rise to epidermis

(a)

i and ii only

(b)

ii and iii only

(c)

i and iii only

(d)

iii and iv only

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

Select the incorrect statement about casparian strips

(a)

These are bands of thickenings along the radial and tangential walls of endodermal cells

(b)

They prevent plasmolysis of endodermal cells

(c)

These are composed of lignin, suberin and tannins.

(d)

It is not found opposite to proto xylem points

A meristem which divides in all planes is called __________

(a)

Intercalary meristem

(b)

Lateral meristem

(c)

Plate menstem

(d)

Mass meristem

Atactostele is characteristic of ___________

(a)

Monocot leaf

(b)

Monocot stem

(c)

Dicot root

(d)

Dicot Stem

Assertion (A): In grasses the bundle sheath is called Kranz sheath.
Reason (R): It is involved in photosynthesis.

(a)

A and R are right

(b)

A and R are wrong

(c)

R does not Explain A

(d)

A is right and R is wrong

Conjunctive tissue __________

(a)

covers the phloem

(b)

covers the vascular bundle

(c)

covers the stele

(d)

separates xylem and phloem

In insectivorous plants the ____________ help to trap insects.

(a)

Subsidiary cells

(b)

Trichomes

(c)

Root hairs

(d)

Leaf cells