NEET Examinations
NEET is one of the most competitive and difficult examinations in the country where more than a million candidates compete for entrance into medical colleges across colleges. This exam consists of three subjects which are Physics, Chemistry, and Biology respectively. The exam is conducted on the subjective examination pattern mode where the questions have to be answered based upon four choices that are given to the students. The students who are selected have to possess very high quantitative and qualitative analytical skills as this exam has a very high benchmark and students need to give their best for success in the examinations.
The Floral Formula of Hibiscus
Hibiscus or China rose is an angiosperm that belongs to the Malvaceae family. It is very widely found in the tropical and subtropical regions of the world and is a cultivated plant. It is used primarily as an ornamental plant and flower. A few other plants belonging to the Malvaceae family are cotton, lady's finger, mallow, etc. The family is also known as the mallow family. The Floral Formulas are used to give a description of each plant and its features.
A floral formula is a numerical and symbolic representation of the morphological features of the flower. It depicts the different floral characteristics and structures which make up a flower.
Hibiscus flower floral formula can be written as follows-
Br Brl ⊕ ⚥ K(5) C5 A(∞) G(5)
Every symbol and number in the floral formula has a specific meaning and characteristics to it. Br symbolizes that the hibiscus is a bracteate flower. Brl symbolizes that the hibiscus is also a bracteolate flower. ⊕ symbolizes that hibiscus is an Actinomorphic flower. Actinomorphic flowers are those flowers that have radial symmetry in them. ⚥ symbolizes the fact that the china rose is a bisexual flower having both androecium and gynoecium. In K(5), K stands for the calyx whorl of flowers. The number 5 symbolizes that there are five sepals in the calyx whorl. The brackets here represent the gamosepalous condition. This means all the sepals are fused into a tube-like structure. C5 symbolizes the corolla whorl with five free petals in a polypetalous state. A(∞) represents the androecium whorl of the flower. There are an infinite number of stamens in the hibiscus fused into a single tube (monadelphous condition) which is attached to the petals (epipetalous). The attaching line from C5 to A(∞) shows the epipetalous condition. G(5) represents the gynoecium whorl of the flower with 5 representing 5 fused carpels. The line below G represents superior ovary or hypogynous condition.
The floral formula for the hibiscus is very helpful in depicting the floral morphological characters of the flower. The floral formula of China rose along with the floral diagram is important from the perspective of the NEET examination.
FAQs on Floral Formula of Hibiscus for NEET
1. What are the Characteristic Features of the Malvaceae Family?
The characteristic features of the Malvaceae flower family are:
The Flowers have epicalyx or bracteoles.
The androecium has numerous stamens that are fused into a single tube-like structure exhibiting monadelphous condition and the Anthers are uniform and monotonous. The staminal tube encloses the gynoecium.
The gynoecium is multicarpellary, syncarpous, multilocular, along with the superior ovary and axile placentation.
The members of this family exhibit entomophilous pollination due to which flowers are brightly colored and have extrafloral nectaries.
2. Describe the Root, Stem, Leaf, and inflorescence of the Malvaceae Family.
The respective characteristics of the roots, stems, leaves, and inflorescence of the Malvaceae family are:-
Root: This is a profusely branched tap root system in the Malvaceae family.
Stem: The stem is usually aerial, branched, and erect. The stem is herbaceous and young portions are covered by trichomes.
Leaves: The Malvacease plants possess simple leaves with alternate phyllotaxy (arrangement of leaves on the stem in an alternative manner). They have reticulate venation. These leaves are stipulated and petiolated.
Inflorescence: The inflorescence is essentially cymose along with solitary cymes in the raceme.
3. What is the Economic importance to the Hibiscus Flower?
The Hibiscus Rosa Sinensis is majorly used as an ornamental plant and it has its importance in folk medicine and is used as a diuretic and mild laxative. It also finds its use in the treatment of cancer, cardiac, and nerve diseases. It is recommended for good hair growth and hence used in hair products. There are other species of hibiscus used for various other purposes. Some tropical varieties are edible and used in salads. The edible varieties of this flower are rich in vitamin C and antioxidants which cure a cold helps to boost immunity and achieve clear skin.
4. How to score well in the portion related to flower characteristics in the NEET Examinations?
Floral Formula is one of the most important subjects in the NEET examinations, there are a large number of questions which are asked from this topic, so it is necessary that students have a good command of the topic. Try asking your teachers whatever doubts you may be having during the class and approach your friends who have solved those questions in which you are having trouble. Vedantu provides quality online resources including explanations and solved exercises which are easily accessible to the students to get a good command over the subject.
5. How can I download the study materials and the related portions for the Floral Formula of Hibiscus Flower from Vedantu?
The Online resources at Vedantu can easily be accessed using 4 steps:
Open the Website of Vedantu on your Laptop or you can log in to the Vedantu App through your phone.
Search the subject of Biology and the topic of Floral Formula.
Click on Download PDF to download the solution in PDF format.
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