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Plant Kingdom

807 Questions Start Allen Test
All Exams Allen Errorless
NEET 2024 Q1 Errorless Critical Thinking MCQ
Read the following statements and choose the set of correct statements
In the members of Phaeophyceae,
(A) Asexual reproduction occurs usually by biflagellate zoospores.
(B) Sexual reproduction is by oogamous method only.
(C) Stored food is in the form of carbohydrates which is either mannitol or laminarin.
(D) The major pigments found are chlorophyll a, c and carotenoids and xanthophyll.
(E) Vegetative cells have a cellulosic wall, usually covered on the outside by gelatinous coating of algin.
A.
A, B, C and D only
B.
B, C, D and E only
C.
A, C, D and E only
D.
A, B, C and E only
NEET 2023 Q2 Errorless Critical Thinking MCQ
Identify the pair of heterosporous pteridophytes among the following
A.
Selaginella and Salvinia
B.
Psilotum and Salvinia
C.
Equisetum and Salvinia
D.
Lycopodium and Selaginella
NEET 2023 Q3 Errorless Assertion and Reason MCQ
Assertion : The first stage of gametophyte in the life cycle of moss is protonema stage. Reason: Protonema develops directly from spores produced in capsule.
A.
If both assertion and reason are true and the reason is the correct explanation of the assertion.
B.
If both assertion and reason are true but reason is not the correct explanation of the assertion.
C.
If assertion is true but reason is false.
D.
If the assertion and reason both are false.
E.
If assertion is false but reason is true.
NEET 2022 Q4 Errorless Critical Thinking MCQ
Which of the following is incorrectly matched
A.
Porphyra ā€“ Floridian starch
B.
Volvox āˆ’ Starch
C.
Ectocarpus ā€“ Fucoxanthin
D.
Ulothrix - Mannitol
NEET 2022 Q5 Errorless Critical Thinking MCQ
Hydrocolloid carrageen is obtained from
A.
Rhodophyceae only
B.
Phaeophyceae only
C.
Chlorophyceae and Phaeophyceae
D.
Phaeophyceae and Rhodophyceae
NEET 2022 Q6 Errorless Critical Thinking MCQ
Match the plant with the kind of life cycle it exhibits
Column-IColumn-II
(A)Spirogyra
(B)Fern
(C)Funaria
(D)Cycas
(P)Dominant diploid sporophyte vascular plant, with highly reduced male or female gametophyte
(Q)Dominant haploid free-living gametophyte
(R)Dominant diploid sporophyte alternating with reduced gametophyte called prothallus
(S)Dominant haploid leafy gametophyte alternating with partially dependent multicellular sporophyte
A.
Aā€“R, Bā€“S, Cā€“P, Dā€“Q
B.
Aā€“Q, Bā€“S, Cā€“P, Dā€“R
C.
Aā€“S, Bā€“P, Cā€“Q, Dā€“R
D.
Aā€“Q, Bā€“R, Cā€“S, Dā€“P
NEET 2021 Q7 Errorless Critical Thinking MCQ
Which of the following algae contains mannitol as reserve food material
A.
Gracillaria
B.
Volvox
C.
Ulothrix
D.
Ectocarpus
NEET 2021 Q8 Errorless Critical Thinking MCQ
Which of the following plants is monoecious
A.
Chara
B.
Marchantia polymorpha
C.
Cycas circinalis
D.
Carica papaya
NEET 2021 Q9 Errorless Critical Thinking MCQ
Ganera like Selaginella and Salvinia produce two kinds of spores. Such plants are know as
A.
Heterosorus
B.
Homosporous
C.
Heterosporous
D.
Homosorus
NEET 2021 Q10 Errorless Critical Thinking MCQ
Gemmae are present in
A.
Pteridophytes
B.
Some Gymnosperms
C.
Some Liverworts
D.
Mosses
NEET 2020 Q11 Errorless Critical Thinking MCQ
Floridean starch has structure similar to
A.
Laminarin and cellulose
B.
Starch and cellulose
C.
Amylopectin and glycogen
D.
Mannitol and algin
NEET 2020 Q12 Errorless Critical Thinking MCQ
Which of the following pairs is of unicellular algae
A.
Chlorella and Spirulina
B.
Laminaria and Sargassum
C.
Gelidium and Gracilaira
D.
Anabaena and Volvox
NEET 2020 Q13 Errorless Critical Thinking MCQ
Strobili or cones are found in
A.
Equisetum
B.
Salvinia
C.
Pteris
D.
Marchantia
NEET 2019 Q14 Errorless Pteridophytes MCQ
From evolutionary point of view, retention of the female gametophyte with developing young embryo on the parent sporophyte from some time, is first observed in
A.
Liverworts
B.
Mosses
C.
Pteridophytes
D.
Gymnosperms
NEET 2019 Q15 Errorless Pinus MCQ
Pinus seed cannot germinate and establish without fungal association. This is because[NCERT Pg.No. 32]
A.
Its embryo is immature
B.
It has obligate association with mycorrhizae
C.
It has very hard seed coat
D.
Its seeds contain inhibitors that prevent germination
NEET 2018 Q16 Errorless Algae MCQ
Which one is wrongly matched
A.
Uniflagellate gametes Polysiphonia
B.
Biflagellate zoospores Brown algae
C.
Gemma cups Marchantia
D.
Unicellular organism Chlorella
NEET 2018 Q17 Errorless Gymnosperm MCQ
Which of the following statement is correct
A.
Ovules are not enclosed by ovary wall in gymnosperms
B.
Selaginella is heterosporous, while Salvinia is homosporous
C.
Horsetails are gymnosperms
D.
Stems are usually unbranched in both Cycas and Cedrus
NEET 2018 Q18 Errorless Critical Thinking MCQ
Which one of the following plants shows a very close relationship with a species of moth, where none of the two can complete its life cycle without the other
A.
Hydrilla
B.
Yucca
C.
Banana
D.
Viola
NEET 2018 Q19 Errorless Critical Thinking MCQ
Plants having little or no secondary growth are
A.
Grasses
B.
Deciduous angiosperms
C.
Conifers
D.
Cycads
NEET 2017 Q20 Errorless Algae MCQ
An example of colonial alga is Or Algae which form motile colony is [Odisha JEE 2005]
A.
Chlorella
B.
Volvox
C.
Ulothrix
D.
Spirogyra
NEET 2017 Q21 Errorless Critical Thinking MCQ
Life cycle of Ectocarpus and Fucus respectively are
A.
Haplontic, Diplontic
B.
Diplontic, Haplodiplontic
C.
Haplodiplontic, Diplontic
D.
Haplodiplontic, Haplontic
NEET 2017 Q22 Errorless Critical Thinking MCQ
Select the mismatch
A.
Pinus Dioecious
B.
Cycas Dioecuous
C.
Salvinia Heterosporous
D.
Equisetum Homosporous
NEET (Phase-II) 2016 Q23 Errorless Algae MCQ
Which one of the following statements is wrong
A.
Laminaria and Sargassum are used as food
B.
Algae increase the level of dissolved oxygen in the immediate environment
C.
Algin is obtained from red algae, and corrageenan from brown algae
D.
Agar-agar is obtained from Gelidium and Gracilaria
NEET (Phase-II) 2016 Q24 Errorless Angiosperm Numerical
In majority of angiosperms (a) A small central cell is present in the embryo sac (b) Egg has a filiform apparatus (c) There are numerous antipodal cells 111
NEET (Phase-I) 2016 Q25 Errorless Critical Thinking MCQ
Select the correct statement
A.
Gymnosperms are both homosporous and heterosporous
B.
Salvinia, Ginkgo and Pinus all are gymnosperms
C.
Sequoia is one of the tallest trees
D.
The leaves of gymnosperms are not well adapted to extremes of climate