Q726
Allen
ANALYTICAL QUESTIONS
MCQ
Moss peat is used as a packing material for sending flowers and live plants to distant places because :
A.
it reduces transpiration
B.
it serves as a disinfectant
C.
it is easily available
D.
it is hygroscopic
Q727
Allen
ANALYTICAL QUESTIONS
MCQ
In a moss the sporophyte :
A.
arises from a spore produced from the gametophyte
B.
manufactures food for itself, as well as for the gametophyte
C.
is partially parasitic on the gametophyte
D.
produces gametes that give rise to the gametophyte
Q728
Allen
ANALYTICAL QUESTIONS
MCQ
If you are asked to classify the various algae into distinct groups, which of the following characters you should choose?
A.
Chemical composition of the cell wall
B.
Types of pigments present in the cell
C.
Nature of stored food materials in the cell
D.
Structural organization of thallus
Q729
Allen
ANALYTICAL QUESTIONS
MCQ
Algae have cell wall made up of :
A.
Cellulose, hemicellulose and pectins
B.
Cellulose, galactans and mannans
C.
Hemicellulose, pectins and proteins
D.
Pectins, cellulose and proteins
Q730
Allen
ANALYTICAL QUESTIONS
MCQ
Examine the figure A, B, C and D. In which one of the four options all the items A, B, C and D are correct ?
Options :
A B C D
Options :
A B C D
A.
Equisetum Ginkgo Selaginella Lycopodium
B.
Selaginella Equisetum Salvinia Ginkgo
C.
Funaria Adiantum Salvinia Riccia
D.
Chara Marchantia Fucus Pinus
Q731
Allen
ANALYTICAL QUESTIONS
MCQ
Archegoniophore is present in :-
A.
Marchantia
B.
Chara
C.
Adiantum
D.
Funaria
Q732
Allen
ANALYTICAL QUESTIONS
MCQ
Examine the figure given below and select the right option giving all the four parts (a, b, c, d) correctly identified.
A.
Antheridiophore ā Male ā Globule thallus ā Roots
B.
Antheridiophore ā Male thallus ā Gemma-cup ā Rhizoids
C.
Archegoniophore ā Female thallus ā Bud ā Foot
D.
Seta ā Sporophyte ā Protonema ā Rhizoids
Q733
Allen
ANALYTICAL QUESTIONS
MCQ
Selaginella and Salvinia are considered to represent a significant step toward evolution of seed habit because :-
A.
Embryo develops in female gametophyte which is retained on parent sporophyte
B.
Female gametophyte is free and gets dispersed like seeds.
C.
Female gametophyte lacks archegonia
D.
Megaspores possess endosperm and embryo surrounded by seed coat.
Q734
Allen
ANALYTICAL QUESTIONS
MCQ
Consider the following four statements whether they are correct or wrong :
(a) The sporophyte in liverworts is more elaborate than that is 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.
(a) The sporophyte in liverworts is more elaborate than that is 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.
A.
Statements a and b
B.
Statements a and c
C.
Statements a and d
D.
Statements b and c
Q735
Allen
ANALYTICAL QUESTIONS
MCQ
Which one of the following is a correct statement ?
A.
Antheridiophores and archegoniophores are present in pteridophytes.
B.
Origin of seed habit can be traced in pteridophytes.
C.
Pteridophyte gametophyte has a protonemal and leafy stage.
D.
In gymnosperms female gametophyte is free living.
Q736
Allen
ANALYTICAL QUESTIONS
MCQ
A nitrogen fixing microbe associated with Azolla in rice-fields is :-
A.
Frankia
B.
Rhizobium
C.
Spirulina
D.
Anabaena
Q737
Allen
ANALYTICAL QUESTIONS
MCQ
Read the following five statements
(A-E) and answer as asked next to them :-
(A) In Equisetum the female gametophyte is retained on the parent sporophyte
(B) In Ginkgo male gametophyte is not independent
(C) The sporophyte in Riccia is more developed than that in Polytrichum
(D) Sexual reproduction in - Volvox is isogamous
(E) The spores of slime molds lack cell walls How many of the above statements are correct ?
(A-E) and answer as asked next to them :-
(A) In Equisetum the female gametophyte is retained on the parent sporophyte
(B) In Ginkgo male gametophyte is not independent
(C) The sporophyte in Riccia is more developed than that in Polytrichum
(D) Sexual reproduction in - Volvox is isogamous
(E) The spores of slime molds lack cell walls How many of the above statements are correct ?
A.
Four
B.
One
C.
Two
D.
Three
Q738
Allen
ANALYTICAL QUESTIONS
MCQ
Which one of the following pairs is wrongly matched?
A.
Viroids ā RNA
B.
Mustard ā Synergids
C.
Ginkgo ā Archegonia
D.
Salvinia ā Prothallus
Q739
Allen
ANALYTICAL QUESTIONS
MCQ
Megasporangium is equivalent to :
A.
Ovule
B.
Embryo sac
C.
Fruit
D.
Nucellus
Q740
Allen
ANALYTICAL QUESTIONS
MCQ
Isogamous condition with non-flagallated gametes is found in :
A.
Fucus
B.
Chlamydomonas
C.
Spirogyra
D.
Volvox
Q741
Allen
ANALYTICAL QUESTIONS
MCQ
Which of the following is not correctly matched for the organism and its cell wall degrading enzyme?
A.
Fungi ā Chitinase
B.
Bacteria ā Lysozyme
C.
Plant cells ā Cellulase
D.
Algae ā Methylase
Q742
Allen
ANALYTICAL QUESTIONS
MCQ
Read the following statements (A-E) and answer the question which follows them.
(a) In liverworts, mosses and ferns gametophytes are free living.
(b) Gymnosperms and some ferns are heterosporous.
(c) Sexual reproduction in Fucus, Volvox and Albugo is oogamous.
(d) The sporophyte in liverworts is more elaborate than that in mosses.
(E) Both, Pinus and Marchantia are dioecious. How many of the above statements are correct?
(a) In liverworts, mosses and ferns gametophytes are free living.
(b) Gymnosperms and some ferns are heterosporous.
(c) Sexual reproduction in Fucus, Volvox and Albugo is oogamous.
(d) The sporophyte in liverworts is more elaborate than that in mosses.
(E) Both, Pinus and Marchantia are dioecious. How many of the above statements are correct?
A.
Four
B.
One
C.
Two
D.
Three
Q743
Allen
ANALYTICAL QUESTIONS
MCQ
The life cycle pattern of Fucus is: -
A.
Haplontic
B.
Diplontic
C.
Haplo-diplontic
D.
All of these
Q744
Allen
ANALYTICAL QUESTIONS
MCQ
The pattern of life cycle in Bryophyte is :-
A.
Haplontic
B.
Diplontic
C.
Haplo-diplontic
D.
Diploid gametophyte
Q745
Allen
ANALYTICAL QUESTIONS
MCQ
Life cycle of kelps is :-
A.
Haplontic
B.
Diplontic
C.
Haplo-diplontic
D.
Diplontic- haplontic
Q746
Allen
ANALYTICAL QUESTIONS
MCQ
Life cycle of the Pteridophytes is :-
A.
Haplontic
B.
Diplontic
C.
Haplo-diplontic
D.
All of them
Q747
Allen
ANALYTICAL QUESTIONS
MCQ
Which pattern of life cycle is followed by moss and fern respectively :-
A.
Haplontic, Diplontic
B.
Diplontic, Haplontic
C.
Haplodiplontic, Diplohaplontic
D.
Haplodiplontic, Haplodiplontic
Q748
Errorless
Algae
MCQ
Which one of the following statements is wrong
A.
Agar-agar is obtained from Gelidium and Gracilaria
B.
Chlorella and Spirulina are used as space food
C.
Mannitol is stored food in Rhodophyceae
D.
Algin and carragen are products of algae
Q749
Errorless
Algae
MCQ
More than one pyrenoid are present in
A.
Ulothrix
B.
Spirogyra
C.
Oedogonium
D.
All the above
Q750
Errorless
Algae
MCQ
Which one of the following statements concerning the algae is wrong
A.
Most algae are photosynthetic
B.
Algae can be classified according to their pigments
C.
All algae are filamentous
D.
Spirogyra does not produce zoospores