Plant Kingdom Quiz-03
Dear Readers,
NEET is the most famous and important medical entrance examination held in our country. This exam is an objective type, an offline test which includes 4 sections namely– Physics, Chemistry, Botany, and Zoology. The maximum marks that can be scored are 720 marks and have 180 questions.
About half of the paper consists of questions from Biology, as the NEET exam essentially focuses on capacitating students to go for seats in medical courses. One of the most significant and crucial sections in the NEET exam is of Biology. It comprises of theories, descriptions, discoveries, diagrams, definitions, explanations of differences, and relations. The majority of the topics covered in the NEET syllabus are from the NCERT syllabus of Class 11 & 12 and other related sources become part of the rest of the syllabus.
Clear Exam curates a list of articles selected by professionals who recommend the highly vital topics for NEET exams. The table below takes you directly to the respective topic where the in-depth article and the MCQs are available for an easy and productive learning experience. Prior to solving NEET question papers or practicing mock tests, you must ensure to study the basic concepts in NEET and practice a few sample questions related to this exam. Students will be covered for all their studies as the topics are available from basics to even the most advanced.
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Q1.
The positive evidence of aquatic ancestory of bryophytes is indicated by
Solution
(a) Ciliated antherozoids and necessity of water for fertilization suggest that the bryophytes have originated from aquatic ancestors.
(a) Ciliated antherozoids and necessity of water for fertilization suggest that the bryophytes have originated from aquatic ancestors.
Q2.
Sphagnum a moss, is used as a packing material for transporting living materials because of its
Solution
(a) Sphagnum is a bryophyte, commonly called as bogmass or peat moss. It is hygroscopic and possesses a rem arkable water holding capacity. Hence, it is used as a packing material in the transportation of flowers, live plants, tubers, bulbs, seedlings, etc. It is also used in seed-beds and in moss-sticks
(a) Sphagnum is a bryophyte, commonly called as bogmass or peat moss. It is hygroscopic and possesses a rem arkable water holding capacity. Hence, it is used as a packing material in the transportation of flowers, live plants, tubers, bulbs, seedlings, etc. It is also used in seed-beds and in moss-sticks
Q3.
Gametophyte is the dominant phase in the life cycle of
Solution
(d) The bryophytes represent two morphologically distinct generations, i.e., gametophytic and sporophytic. The gametophytic phase is dependent upon as well as being permanenty attached to the gametophyte, e.g.,Riccia,Marchantia.
(d) The bryophytes represent two morphologically distinct generations, i.e., gametophytic and sporophytic. The gametophytic phase is dependent upon as well as being permanenty attached to the gametophyte, e.g.,Riccia,Marchantia.
Q4.
Which has vascular tissue, produces spores but does not have seeds?
Solution
(b) Pteridophytes are vascular cryptogams. They generally produce spores but do not have seeds.
(b) Pteridophytes are vascular cryptogams. They generally produce spores but do not have seeds.
Q5.
Egg apparatus of angiosperms consist of
Solution
(b) Two synegirds and one egg cell. Polygonum type of embryo sac is the most common in angiosperms. It is 7-celled and 8-nucleate. The nuclei are arranged in such a way that three organized at micropylar end and form egg apparatus (one egg and two synergides,) two nuclei migrate to centre and form polar nuclei in a single central cell and three nuclei at chalazal pole organized into antipodal cells
(b) Two synegirds and one egg cell. Polygonum type of embryo sac is the most common in angiosperms. It is 7-celled and 8-nucleate. The nuclei are arranged in such a way that three organized at micropylar end and form egg apparatus (one egg and two synergides,) two nuclei migrate to centre and form polar nuclei in a single central cell and three nuclei at chalazal pole organized into antipodal cells
Q6.
The red colour of ‘red sea’ is due to which of the following blue-green algae?
Solution
(d) Due to the presence of Trichodesmium, a blue-green algae, ‘red sea’ have their specific red colour.
(d) Due to the presence of Trichodesmium, a blue-green algae, ‘red sea’ have their specific red colour.
Q7.
Triple fusion in angiosperms is the fusion of second male gamete with
Solution
(a) During fertilisation in plants, one male gamete fuses with the egg cell and forms the zygote (this process is called syngamy). The other male gamete fuses with the secondary nucleus (this is called triple fusion). The syngamy and triple fusion together are called double fertilisation
(a) During fertilisation in plants, one male gamete fuses with the egg cell and forms the zygote (this process is called syngamy). The other male gamete fuses with the secondary nucleus (this is called triple fusion). The syngamy and triple fusion together are called double fertilisation
Q8.
Bryophytes include
Solution
(a) Bryophytes including liverworts, hornworts and mosses shown alteration of generations
(a) Bryophytes including liverworts, hornworts and mosses shown alteration of generations
Q9.
Spores with chloroplast is present in
Solution
(b) The spores of Equisetum when young are green and covered by a thin wall of cellulose. At maturity, they are relatively larger, rounded and contain numerous chloroplasts.
(b) The spores of Equisetum when young are green and covered by a thin wall of cellulose. At maturity, they are relatively larger, rounded and contain numerous chloroplasts.
Q10.
Ulothrix releases zoospore during
Solution
(b) In Ulothrix, the cells in the filament commonly produce and discharge the zoospores about the same time just after sunrise.
(b) In Ulothrix, the cells in the filament commonly produce and discharge the zoospores about the same time just after sunrise.
