NEET Botany Plant Kingdom Class 11 Questions
46 questions
Which of the following have multicellular sporophyte which is not free living but attached to photosynthetic gametophyte and derives nourishment from it?
In which among the following plant group, embryo formation is absent?
Statement^{-1} :- One of the cell of megasporangium develops into a multicellular male gametophyte. Statement^{-2}:- The ovule are borne on megasporophylls which may be clustered to form the male cone.
Which of the following is not a character related to Red Algae?
The main plant body of the bryophyte is called a gametophyte. In pteridophytes, the main plant body is a sporophyte. Majority of the pteridophytes are heterosporous. The gymnosperms are homosporous. Select the correct option.
Identify the pair of heterosporous pteridophytes among the following.
Match column I with column II and select the CORRECT option from the codes given below.
The gametophyte of pteridophytes require to grow :-
Haplo-diplontic life cycles are exhibited by which of the following plant groups?
Statement – I: The predominant stages of the life cycle of a moss is the gametophyte which consist of two stages. Statement – II: Vegetative reproduction in mosses is by fragmentation and budding in the secondary protonema.
Given below are the stages in the life cycle of pteridophytes. Arrange the following stages in the correct sequence. A. Prothallus stage B. Meiosis in spore mother cells C. Fertilisation D. Formation of archegonia and antheridia in gametophyte. E. Transfer of antherozoids to the archegonia in presence of water. Choose the correct answer from the options given below:
The correct sequence of events in the life cycle of bryophytes is A. Fusion of antherozoid with egg. B. Attachment of gametophyte to substratum. C. Reduction division to produce haploid spores. D. Formation of sporophyte. E. Release of antherozoids into water. Choose the correct answer from the options given below :
Which one of the following is the characteristic feature of gymnosperms?
Match List I with List II.
In bryophytes, the gemmae help in which one of the following?
Read the following staduction and Pigmentationtements 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. Choose the correct answer from the options given below:
Identify the pair of heterosporous pteridophytes among the following:
Given below are two statements : One is labelled as Assertion A and the other is labelled as Reason R : Assertion A : The first stage of gametophyte in the life cycle of moss is protonema stage. Reason R : Protonema develops directly from spores produced in capsule. In the light of the above statements, choose the most appropriate answer from the options given below :
Given below are two statements : One is labelled as Assertion A and the other is labelled as Reason R : Assertion A : In gymnosperms the pollen grains are released from the microsporangium and carried by air currents. Reason R : Air currents carry the pollen grains to the mouth of the archegonia where the male gametes are discharged and pollen tube is not formed. In the light of the above statements, choose the correct answer from the options given below :
Which of the following is incorrectly matched?
Match the plant with the kind of life cycle it exhibits:
Gemmae are present in:
Genera like Selaginella and Salvinia produce two kinds of spores. Such plants are known as:
The plant parts which consist of two generations - one within the other: (a) Pollen grains inside the anther (b) Pollen grains inside the anther Germinated pollen grain with two male gametes (c) Seed inside the fruit (d) Embryo sac inside the ovule
Strobili or cones are found in:
From evolutionary point of view, retention of the female gametophyte with developing young embryo on the parent sporophyte for some time, is first observed in:
Which one is wrongly matched?
Which of the following statements is CORRECT?
Zygotic meiosis is characteristic of:
Select the mismatch.
An example of colonial alga is
In bryophytes and pteridophytes, transport of male gametes requires
Select the CORRECT statement.
Which one of the following statements is WRONG?
Read the following five statements (i to v) and select the option with all correct statements: i. Mosses and lichens are the first organisms to colonise a bare rock. ii. Selaginella is a homosporous pteridophyte. iii. Coralloid roots in Cycas have VAM. iv. Main plant body in bryophytes is gametophytic, whereas in pteridophytes it is sporophytic. v. In gymnosperms, male and female gametophytes are present within sporangia located on sporophyte.
Male gametes are flagellated in:
In which of the following gametophyte is not independent free living?
An alga which can be employed as food for human being is:
Anoxygenic photosynthesis is characteristic of:
Which one of the following shows isogamy with non-flagellated gametes?
Which of the following is responsible for peat formation?
Which one of the is wrong about Chara?
Male gametophyte with least number of cells is presently in:
The plant body is thalloid in :-
What is common in all the three, Funaria, Dryopteris and Ginkgo?
Syngamy can occur outside the body of the organism in: