Plant kingdom handwritten notes for NEET

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Plant kingdom handwritten notes for NEET:- Today we are sharing Plant kingdom handwritten notes for NEET. This Plant kingdom handwritten notes for NEET for upcoming examination like NEET, JEE, NTPC, SSC CGL, LIC, REET, UPPSC, MPTET, DSSSB, RPSC, UPSC, DRDO, DDA, AAI, SSC GD, ALL STATE PCS EXAM. Plant kingdom handwritten notes for NEET and important questions Plant kingdom handwritten notes for NEET which Will be helpful for you in preparing for the exams. Keep watching the updates on this website every day, here the notes and questions are updated daily, if you need notes/questions on any subject or topic, then you can contact our team. pdfdownload.in The team is looking forward to supporting you.

Plant kingdom handwritten notes for NEET for all competitive exams like UPSC, Railway and All Competitive Exams is important in all GOVT. Exams. Common questions are placed in Plant kingdom handwritten notes for NEET, UPSC, Railway and All Competitive Exams, which has been put together in most examinations, can download, which has been put together in most examinations, you can download this PDF Notes very simply by clicking on the Download Button at the bottom. This Plant kingdom handwritten notes for NEET All in One Questions and Answers in Hindi PDF Download post is dedicated to downloading our pdfdownload.in for free PDFs, which are the latest exam pattern based for UPSC, SSC, And All One-day Govt. exams, etc.

Every exam you will get at least 20-25 questions from Plant kingdom handwritten notes for NEET. So candidates must focus on the Plant kingdom handwritten notes for NEET and answers in Hindi pdf 2022 For SSC Bank and download this GK Book to get important questions with the best solutions. We have put all Previous Year Questions of GK that are Asked in various Govt & Private Exam.

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Most Important Plant kingdom Question Answer

Q 1.) When and where does reduction division take place in the life cycle of a liverwort, a moss, a fern, a gymnosperm and an angiosperm?

Answer: Reduction division take place in the life cycle of a liverwort, a moss, a fern, a gymnosperm and an angiosperm, the process can be different in gymnosperm and angiosperm therefore in case of these organisms the reductional division or also called as meiosis takes place at the time spore formation from SMC (spore mother cell).

Q 2.) Name the three groups of plants that bear archegonia. Briefly describe the life cycle of any one of them.

Answer: The three groups of plants that bear archegonia are bryophytes, pteridophytes and gymnosperms.

The life cycle of pteridophytes are: There are two generation in life cycle of pteridophytes such as gametophytic (n) and sporophyte (2n) .The gametophyte generation start with the Archaegonia (female gamate) and the archedium (male gamate). Archegonium gives rise to egg whereas anthredium gives rise to antherozoid, when they unite forms zygote that is 2n and starting of sporophyte generation which leads to formation of embryo and with series of stages spore mother cells form.

Q 3.) Both gymnosperm and Angiosperm beer seeds, Then why are they classified separately?

Answer- Yes, both gymnosperm and Angiosperm beer seeds but seeds in case of angiosperms are covered whereas in case of gymnosperms seed are naked, therefore need separate classification.

Q 4.) What is heterospory? Briefly comment on its significance. Give two examples.

Answer: Heterospory can be defined as the name itself suggest hetero meaning different and spory means spore; There is formation of spores with two different morphology ; One is large and another is small. Example: Pteridophytes such as salvinia and selaginella.

Q 5.) Explain briefly the following terms with suitable examples:-

i.) Protonema: It can be considerd as one of the stage of the moss which is present in Brophyte life cycle. It is made up from germinating spores and leads to green , slender shaped structure called protonema.

ii.) Anthredium : Anthredium is the male sex organ which is present in bryophyte and pteridophyte life cycle. It contain motile anthrezoids.

iii.) Archegonia : It is female sex organ which is present in bryophyte and pteridophyte life cycle .It gives rise to egg.

iv.) Diplontic : As the name suggest diplontic which means 2n type of gamates and they formed when male and female gamate unite together .

V.) Sprophyll : It is called spore or sporangium containing structure present majorly in pteridophyte. vi.Isogamy : The fusion of gamates which are morphologically similar called Isogamy.

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Most Important Plant kingdom Question Answer

Q 6.) How would you distinguish monocots from dicots?

Answer: Dicots differ from monocots, as the Dicots possesses two seeds. whreas monocots possess only one seed.

Q 7. When and where does reduction division take place in the life cycle of a liverwort, a moss, a fern, a gymnosperm and an angiosperm?

Answer: In the life cycle of a liverwort reduction division takes place in the capsule for the formation of haploid spores that will grow into gametophytic thallus after germination. In mosses, the gametes fertilise and a zygote is formed. The zygote develops into the sporophyte. In the capsule of the sporophyte, reduction division takes place and haploid spores are formed which on germination give rise to gametophytic thallus. In ferns, reduction division takes place in the sporangia present on leaves for the production of spores. Gymnosperms, which have sporophytic plant bodies show reduction division in their microsporangia and megasporangia for the formation of microspores and megaspores. In the case of angiosperms, the main plant body is diploid and reduction division occurs for the formation of gametes. Therefore, in the life cycle of an angiosperm, reduction division takes place in the anther and ovary at the time of microspore and megaspore formation respectively.

Q6. Both gymnosperms and angiosperms bear seeds, then why are they classified separately?

Answer: Both gymnosperms and angiosperms come under the group spermatophyta or seed- bearing plants. However, angiosperms and gymnosperms are classified separately in spermatophyta because gymnosperms possess naked seeds i.e. their seeds are not enclosed in the ovary whereas angiosperms possess seeds that are enclosed in the ovary.

Q7. What is heterospory? Briefly comment on its significance. Give two examples.

Answer: Heterospory- It refers to the existence of two types of meiospores i.e. microspores and megaspores in a single plant. These microspores and megaspores are formed respectively within microsporangia and megasporangia which in turn are borne on two distinct sporophylls called microsporophylls and megasporophylls respectively. The microspores and megaspores upon germination give rise to male and female gametophyte respectively. The megaspore is retained in megasporangia and it ensures proper development of the zygote. which is formed after the fusion of microgametes with the megagametes. The zygote is retained on the plant and it is considered to be a precursor of seed habit.

Significance of heterospory- Heterospory is considered to be an important step in evolution as it is a precursor of seed habit which is seen in higher plants. Heterospory was first observed in pteridophyte Selaginella and Salvinia .

Q 8. Why is reproduction essential for organisms?

Answer: Reproduction refers to the process of production of offsprings by living organisms. The offsprings produced are similar to their parents. These offsprings grow and become reproductively mature to leave their progenies. Therefore, this process repeats itself and
a continuity of species is maintained generation after generation. If reproduction would not have been there, species would not be able to leave their progenies and sooner or later they might extinct. Thus, reproduction is essential for living organisms

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