Morphology of Flowering Plants Quiz-19
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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. Identify flower parts A to D in the given diagrams correctly
Solution
Calyx Outer part of flower which is generally used for the protection of flower. It is sometime fused with the corolla and used for special functions.
Corolla It is the brightly coloured (generally) which is used for the attraction of insect for pollination.
Androecium Male reproductive part containing stamen. In stamen, three are pollen sac which contain pollens.
Gynoecium Female reproductive part which contains stigma, style and ovary.
Q2.Which of the following is a wheat fruit?
Solution
Caryopsis is a fruit of family-Gramineae, e.g., wheat. Caryopsis fruit is characterized by fused fruit and seed wall.
Caryopsis is a fruit of family-Gramineae, e.g., wheat. Caryopsis fruit is characterized by fused fruit and seed wall.
Q3. In the diagram of types of placentation given above ‘A’, ‘B’, ‘C’, and ‘D’ respectively represent
Solution
A-Axile B-Basal C-Parietal D-Free central
A-Axile B-Basal C-Parietal D-Free central
Q4. Region of root present just above the root cap is called the region of
Solution
Meristematic activity. A typical root possess the four parts or regions
Meristematic activity. A typical root possess the four parts or regions
(i) Root Cap The root is covered at the apex by thimble like structure called root cap. It protects the tender apex of root as it makes its way through soil.
(ii) Region of Meristematic Activity Few millimeters above the root cap. The cells of this region are very small, thin walled and dense protoplasm. They divide repeatedly.
(iii) Region of Elongation The cells proximal to the meristematic zone undergoes the rapid elongation and enlargement and are responsible for growth of root in length.
(iv) Region of Maturation The cells of elongation zone gradually differentiate and mature. This zone lies just proximal to the region of elongation.
Q5. Pappus is present in Compositae for
Solution
In several members of Compositae (i.e., Taraxacum, Tragopogon), Dipsacaceae, Vallerianaceae, the calyx is modified into hairy pappus. It helps the fruit to float in air by parachute mechanism.
In several members of Compositae (i.e., Taraxacum, Tragopogon), Dipsacaceae, Vallerianaceae, the calyx is modified into hairy pappus. It helps the fruit to float in air by parachute mechanism.
Q6. Which of the following is the modification of leaf?
Solution
Phyllode is the modification of leaf. It is an expanded petiole resembling and having the function of a leaf, e.g., Parkinsonia..
Phyllode is the modification of leaf. It is an expanded petiole resembling and having the function of a leaf, e.g., Parkinsonia..
Q7.Consider the following statements.
I.In racemose inflorescence, the flowers are brone in a basipetal order.
II.Epigynous flowers are seen in rose plant.
III.In brinjal, the ovary is superior.
Of these statements
Solution
In racemose inflorescence, the flowers borne in acropetal manner (younger flowers towards the apex and older ones towards the base). Perigynous flowers are seen in rose plants.
In racemose inflorescence, the flowers borne in acropetal manner (younger flowers towards the apex and older ones towards the base). Perigynous flowers are seen in rose plants.
Q8.Leaves of dicotyledon plants generally exhibits
Solution
Reticulate venation.
Reticulate venation.
Venation The arrangement of veins and the veinlets in the lamina of leaf is termed as venation. When the veinlets form a network, the venation is termed as reticulate.
When the veins run parallel to each other within a lamina the venation is termed as parallel. Leaves of dicotyledonous plants generally possess reticulate venation, while parallel venation is the characteristic of most monocotyledons in reticulate venation vein form network.
Q9.Rhizome, which grows vertically upwards are
Solution
Rhizomes are mostly horizontal or straggling, e.g., ginger, turmeric, lotus, etc, or may be vertical as in Canna, sugarcane, Alocasia, vertical rhizome is also called root-stock.
Rhizomes are mostly horizontal or straggling, e.g., ginger, turmeric, lotus, etc, or may be vertical as in Canna, sugarcane, Alocasia, vertical rhizome is also called root-stock.
Q10. Drupe contains
Solution
In drupe fruit (stone fruit), pericarp is divided into three layers, i.e., Epicarp, mesocarp and endocarp. Endocarp is stony in these fruits. These fruits generally contain one seed rarely two (Zizyphus) or these (Borassus).
