Reproduction in flowering plants Quiz-02
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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.
Embryo sac is also known as
Solution
(b) The mega-gametophyte or female gametophyte also called embryo sac, is mostly a 7-celled structure.
(b) The mega-gametophyte or female gametophyte also called embryo sac, is mostly a 7-celled structure.
Q2.
Which one of the following is resistant to enzyme action?
Solution
(c) The pollen wall consists of two layers, the outer exine and inner intine. The exine is chiefly made up of sporopolenin, which is derived by the oxidative polymerization of carotenoids. Sporopollenin is one of the most resistant biological materials known. Exine is thin in beginning but become very thick with maturity.
(c) The pollen wall consists of two layers, the outer exine and inner intine. The exine is chiefly made up of sporopolenin, which is derived by the oxidative polymerization of carotenoids. Sporopollenin is one of the most resistant biological materials known. Exine is thin in beginning but become very thick with maturity.
Q3.
Wind pollinated flowers are
Solution
(b) Wind pollinated flowers are small, producing large number of pollen grains.
(b) Wind pollinated flowers are small, producing large number of pollen grains.
Q4.
PEC (Primary Endosperm Cell) is formed
Solution
Q5.
Scutellum is
Solution
Q6.
Solution
(b) Diagram depict wind pollination in maize
(b) Diagram depict wind pollination in maize
Q7.
The endosperm in angiosperm develops from
Solution
(b) In angiosperms, endosperms is a triploid (3n) nutritive tissue, which develops form secondary nucleus.
(b) In angiosperms, endosperms is a triploid (3n) nutritive tissue, which develops form secondary nucleus.
Q8.
Petals together form
Solution
(a) Corolla The leaf lifer covering of flower is called corolla. The individual segment of corolla is called petals Petals are variously coloured. Function To attract the pollinators and protection of male and female reproductive part
(a) Corolla The leaf lifer covering of flower is called corolla. The individual segment of corolla is called petals Petals are variously coloured. Function To attract the pollinators and protection of male and female reproductive part
Q9.
The endosperm in angiosperms develops from
Solution
(b) Endosperm in angiosperms develops as a fusion product of secondary nucleus with male gamete. Secondary nucleus is diploid structure formed by fusion of haploid chalazal polar nucleus and haploid micropylar polar nucleus. Zygote is formed by fusion of male gamete with egg.
(b) Endosperm in angiosperms develops as a fusion product of secondary nucleus with male gamete. Secondary nucleus is diploid structure formed by fusion of haploid chalazal polar nucleus and haploid micropylar polar nucleus. Zygote is formed by fusion of male gamete with egg.
Q10.
Which of these is not essential for allogamy?
Solution
(d) Allogamy is also known as cross pollination, i.e., involvement of male and female gametes of two different flowers.
(d) Allogamy is also known as cross pollination, i.e., involvement of male and female gametes of two different flowers.
