Biology Botany Questions NEET UG,AIIMS,Medical Entrance,JIPMER

NEET UG Botany MCQ-40

Question No:1

(A): Coralloid roots of Cycas become swollen at their tips
(R): Certain bacteria and Blue green algae enter into the roots of Cycas.

(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:2

(A): Thalli of Chlorophyta are green colored.
(R): The green color is due to presence of Chlorophyll a and c

(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:3

(A): In Chlamydomonas, asexual reproduction takes place by palmella stage.
(R): It occurs in favourable conditions.

(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:4

(A): Chlorella is an important Brown alga
(R): Chlorella provides only protein nutrients to mankind

(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:5

(A): Volvox is a colonial green alga.

(R): The hollow colony of cells is called as coenobium.

(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:6

(A) : Life cycle of Spirogyra is haplontic.
(R) : The dominant phase in haplontic life cycle is sporophyte

(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:7

(A): Phaeophyceae plants have fucoxanthin.
(R): The plant body of brown algae is differen-tiated into holdfast, stipe and lamina.

(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:8

(A): The peristomial teeth help in the dispersal of spores in Funaria.
(R): The hygroscopic movement of the peristo-mial teeth assists in liberation of spores from spore sac.

(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:9

(A): Sexual reproduction in Bryophytes ranges from Isogamy to Oogamy.
(R): Sex organs are unicellular in Bryophytes.

(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:10

(A): Companian cells are absent in Gymnosperms.
(R): In Gymnosperms, plants show well deve-loped vessels and fibers.

(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:11

(A): Some of the roots of Cycas are called coralloid roots with algae
(R): In Cycas the primary root is tap root, which later on replaced by adventitious roots.

(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:12

Cycas and Adiantum resemble each other in having

(A) seeds
(B) motile sperms
(C) cambium
(D) vessels

Question No:13

Which one of the following is a correct statement?

(A) Pteridophyte gametophyte has a protonemal and leafy stage
(B) In gymnosperms female gametophyte is free-living
(C) Antheridiophores and archegoniophores are present in pteridophytes
(D) Origin of seed habit can be traced in pteridophytes

Question No:14

Which one of the following is similar character for E.coli and Chlamydomonas ?

(A) Colour
(B) Chromosomal organization
(C) Cell wall
(D) Number of cells

Question No:15

Which one of the following is a correct statement ?

(A) Origin of seed habit can be traced in pteridophytes
(B) Pteridophyte gametophyte has a protonemal and leafy stage
(C) In gymnosperms female gametophyte is free-living
(D) Antheridiophores and archegoniophores are present in pteridophytes

Question No:16

Cycas and Cicer resemble each other in having

(A) Vessels
(B) Seeds
(C) Motile Sperms
(D) Cambium

Question No:17

Which one of the following is correctly matched?

(A) Yeast – Zoospores
(B) Onion – Bulb
(C) Ginger – Sucker
(D) Chlamydomonas – Conidia

Question No:18

Eustele is present in

(A) Algae
(B) Dicots
(C) Bryophytes
(D) Pteridophytes

Question No:19

Which one of the following pairs is wrongly matched?

(A) Mustard – Synergids
(B) Gnetum – Archegonia
(C) Salvinia – Prothallus
(D) Viroids – RNA

Question No:20

Consider the following four statements

(A) The sporophyte in liverworts is more elaborate than that in mosses
(B) Salvinia is heterosporous
(C) The life-cycle in all seed-bearing plants is diplontic
(D) In Pinus male and female cones are borne on different trees