NEET UG Botany MCQ-136

Question No:1

Exarchxylem is found in

(A) Dicot and monocot root
(B) Monocot stem only
(C) Dicot stem only
(D) Petioles

Question No:2

Hydrophytes have poor development of:

(A) Mechanical tissue
(B) Conductive strands
(C) Stelar tissue
(D) All of these

Question No:3

Bicollateral vascular bundles are:

(A) Always open
(B) Provided with bundle sheath
(C) Devoid of companion cells in phloem element
(D) Bundles with a phloem group

Question No:4

Differentiation in phloem is:

(A) Sometimes centripetal
(B) Sometimes centri fungal
(C) Always centripetal
(D) Always centrifugal

Question No:5

The first formed xylem element is called:

(A) Protoxylem
(B) metaxylem
(C) Xylem tracheids
(D) metaxylem

Question No:6

Transfusion tissue is found in :

(A) Gymnosperm leaves or leaflets
(B) Dicot plants leaves
(C) Monocot plants only
(D) Angisoperms on the whole

Question No:7

Amphicribal vascular bundles are also called

(A) Leptocentric
(B) Hadrocentric
(C) Amphivasal
(D) Bicollateral

Question No:8

In radial vascular bundles the xylem and phloem lie:

(A) On different radii
(B) On the same radius
(C) Both (a) and (b)
(D) none of these

Question No:9

Conjoint collateral and open vascular bundles with xylem end arch occur in stem of

(A) Dracaena
(B) maize
(C) Wheat
(D) Helianthus

Question No:10

Pith is hollow in

(A) Cucurbita stem
(B) Oryza stem
(C) Wheat stem
(D) All of these

Question No:11

Medullary rays are made up of

(A) Parenchymatous cells
(B) Sclerenchymatous cells
(C) Tracheids
(D) Fibres

Question No:12

Lateral meristem is

(A) Procambium and phelloderm
(B) Interfascicular and phelloderm
(C) Phellogen and phelloderm
(D) Phellogen and fascicular cambium

Question No:13

Cork cambium gives rise to

(A) Cork and secondary cortex
(B) Vascular cambium
(C) Xylem and phloem
(D) All of the above

Question No:14

Cystoliths are chemically composed of:

(A) Calcium oxalate
(B) Calcium carbonates
(C) Calcium bicarbonates
(D) Potassium bicarbonates

Question No:15

What do you mean by closed vascular bundles

(A) Cambium present
(B) Cambium absent
(C) periderm absent
(D) none of these

Question No:16

Periderm consists of

(A) Phellem
(B) Phellogen
(C) Phelloderm
(D) All of these

Question No:17

Which one of the following is not a lateral meristem?

(A) Inter fascicular cambium
(B) Fascicular cambium
(C) Phellogen
(D) Intercalary meristem

Question No:18

Heart wood differs from sap wood in:

(A) Presence of rays and fibres
(B) Absence of vessels and parenchyma
(C) Having dead and non-conducting elements
(D) Being susceptible to pests and pathogens

Question No:19

(A): Xylem and phloem are complex tissues.
(R) Permanent tissue is composed of mature cells.

(A) Both ( A ) and (R) are true and (R) is the correct explanation of ( A )
(B) Both (A) and (R) are true and (R) is not the correct explanation of (A)
(C) (A) is true but (R) is false.
(D) Both (A) are (R) wrong.

Question No:20

(A): There are intercellular spaces between the cells of meristematic tissues.
(R): Vacuoles are mostly larger in meristematic cells.

(A) Both ( A ) and (R) are true and (R) is the correct explanation of ( A )
(B) Both (A) and (R) are true and (R) is not the correct explanation of (A)
(C) (A) is true but (R) is false.
(D) Both (A) are (R) wrong.