Morphology of Flowering Plants Quiz-11
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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. Which one of the following is an example of cleistogamy?
Solution
In cleistogamy, bisexual flowers never open; therefore, the pollen grains may only pollinate the stigma of the same flower, e.g., Commelina benghalensis.
In cleistogamy, bisexual flowers never open; therefore, the pollen grains may only pollinate the stigma of the same flower, e.g., Commelina benghalensis.
Q2.G (2) represents
Solution
G (2)Represents gynoecium, bicarpellary, syncarpous and superior
G (2)Represents gynoecium, bicarpellary, syncarpous and superior
Q3. Roots arising from the part of plant other than the radicle are called
Solution
In some plants like grass, Monstera and the banyan tree, roots arise from parts of the plant other than the radicle are called adventitious roots.
In some plants like grass, Monstera and the banyan tree, roots arise from parts of the plant other than the radicle are called adventitious roots.
Q4. Number of carpels is Sida cordifolia is always
Solution
In Sida cordifolia, the number of carpels is equal to the number of locules.
In Sida cordifolia, the number of carpels is equal to the number of locules.
Q5.Two plants ‘A’ and ‘B’ belonging to Solanaceae are observed. In plant ‘A’, the number of locules in the ovary of a flower is half of that of its carpel number. In plant B, the number of locules in the ovary of a flower is double the number of carpels. Identify the plants ‘A’ and ‘B’ respectively
Solution
In Datura stramonium, gynoecium is bicarpellary syncarpous, ovary superior, bilocular, becoming tetralocular due to formation of a false septa. Therefore, plant B is Datura. In Capsicum, gynoecium is bicarpellary, syncarpous, ovary superior. The cross wall ovary is unilocular in the upper part.
In Datura stramonium, gynoecium is bicarpellary syncarpous, ovary superior, bilocular, becoming tetralocular due to formation of a false septa. Therefore, plant B is Datura. In Capsicum, gynoecium is bicarpellary, syncarpous, ovary superior. The cross wall ovary is unilocular in the upper part.
Q6. The capitulum type of inflorescence is found in
Solution
Head or capitulum inflorescence consists of mono or dimorphic florets borne on a condensed axis, the receptacle. The florets are borne in acropetal manner but appear centripetal due to much condensation of the axis, e.g., Launea, Ageratum, Vernonia, Dahlia, Helianthus, marigold, etc.
Head or capitulum inflorescence consists of mono or dimorphic florets borne on a condensed axis, the receptacle. The florets are borne in acropetal manner but appear centripetal due to much condensation of the axis, e.g., Launea, Ageratum, Vernonia, Dahlia, Helianthus, marigold, etc.
Q7.Vascular bundles are arranged in a ring in the members of family
Solution
In dicotyledons or dicotyledone-vascular bundles are arranged in ring, e.g., Euphorbiaceea, Ranunculanceae, etc.
In dicotyledons or dicotyledone-vascular bundles are arranged in ring, e.g., Euphorbiaceea, Ranunculanceae, etc.
Q8.Identify A,B and C in the given diagram
Solution
The cells of the elongation zone gradually differentiate and mature. Hence, this zone, proximal to the region of elongation, is called the region of maturation. From this region, some of the epidermal cells form very fine and delicate, thread-like structures called root hairs. These root hairs absorb water and minerals from the soil.
The cells of the elongation zone gradually differentiate and mature. Hence, this zone, proximal to the region of elongation, is called the region of maturation. From this region, some of the epidermal cells form very fine and delicate, thread-like structures called root hairs. These root hairs absorb water and minerals from the soil.
Q9.Inflorescence in jowar is
Solution
In jowar (Sorghum vulgare), inflorescence is usually compact panicle, sometime loose and spreading panicle.
In jowar (Sorghum vulgare), inflorescence is usually compact panicle, sometime loose and spreading panicle.
Q10. In Duranta, the nature of vasculated defensive structures represent the modification of
Solution
Thorns are deep-seated outgrowths present as modified stem structures, possessing vascular cylinder surrounded by dark. In Duranta and Bougainvillea, thorns are the modification of axillary buds.
Thorns are deep-seated outgrowths present as modified stem structures, possessing vascular cylinder surrounded by dark. In Duranta and Bougainvillea, thorns are the modification of axillary buds.