NEET UG Botany-141

Question No:1

Epidermis and epiblema are produced from

(A) Phellogen
(B) procambium
(C) protoderm
(D) calyptrogen

Question No:2

Which of the following is an a nucleated living plant cell?

(A) vessel
(B) sieve tube
(C) tracheid
(D) all of these

Question No:3

The vascular bundles of monocot root are

(A) endarch, radial
(B) exarch, radial
(C) endarch, scattered
(D) exarch, bicollateral

Question No:4

Tyloses thickenings are seen in

(A) collenchyma
(B) Phloem cells
(C) ray parenchyma only
(D) ray parenchyma and xylem cells

Question No:5

Who differentiates leaf of dicots from monocots?

(A) parallel venation
(B) differentiation of palisade and spongy parenchyma
(C) stomata only on upper side
(D) stomata both on upper and lower sides

Question No:6

Duramen is present in

(A) inner region of secondary wood
(B) part of sap wood
(C) outer region of secondary wood
(D) region of pericycle

Question No:7

Phellogen is known as

(A) periderm
(B) cork cambium
(C) vascular cambium
(D) none of these

Question No:8

At maturity, which of the following is non-nucleated?

(A) Palisade cell
(B) sieve cell
(C) companion cell
(D) cortical cell

Question No:9

Branch of science dealing with estimation the age of woody plants

(A) Dendrology
(B) Chronology
(C) Dendrochronology
(D) Arborichronology

Question No:10

The grafting is not possible in monocots, because they

(A) have parallel venation
(B) lack cambium
(C) are herbaceous
(D) have scattered vascular bundle.

Question No:11

Conjoint, collateral and open vascular bundles are present in

(A) monocot root
(B) dicot root
(C) monocot stem
(D) dicot stem

Question No:12

Development of succulency, with the presence of mucilage, is a xerophytic adaptation in which of the following plant?

(A) Bryophyllum
(B) Aloe
(C) Agave
(D) both (b) and (c)

Question No:13

Lenticels and hydathodes are small pores with which of the following common attributes?

(A) they always remain closed
(B) they allow exchange of gases
(C) they are found on the same organ of plants
(D) their opening and closing is not regulated

Question No:14

In dicot stems, the vascular bundles are

(A) amphicribal
(B) scattered
(C) arranged in a ring
(D) none of these

Question No:15

Cambium is

(A) Primary meristem
(B) intercalary meristem
(C) lateral meristem
(D) none of these

Question No:16

A root hair is derived from

(A) epidermal cell
(B) cortical cell
(C) endodermal cell
(D) pericycle cell

Question No:17

Secondary growth in dicot stem is the activity of

(A) xylem
(B) cork cambium
(C) vascular cambium
(D) both (b) and (c)

Question No:18

Casparian strips are present in

(A) endodermis
(B) cortex
(C) hypodermis
(D) epidermis

Question No:19

The lateral roots originate from

(A) pericyle
(B) exodermis
(C) vascular bundles
(D) endodermis

Question No:20

Annual rings are distinct in plants, which grow in

(A) tropical regions
(B) grass land
(C) temperate region
(D) arctic region