Flower, fruit and seed

25 solved questions

Ask a question

Which of the following is an example of a zygomorphic flower? Answer: 3. Pea Key idea: A zygomorphic flower can be divided into two equal halves in only one vertical plane. Pea (papilionaceous corolla)... Flower, fruit and seed 1 answer
Match List I with List II :List I: A. Scutellum B. Non-albuminous seed C. Epiblast D. PerispermList II: I. Persistent nucellus II. Cotyledon of Monocot seed III. Groundnut IV. Rudimentary cotyledonChoose the option with all correct matches. Answer: 1. A-II, B-III, C-IV, D-I Key idea: Seed structure terms. Scutellum is the single cotyledon of a monocot (grass) seed: A-II. Non-alb... Flower, fruit and seed 1 answer
In the seeds of cereals, the outer covering of endosperm separates the embryo by a protein-rich layer called : Answer: 4. Aleurone layer Key idea: The aleurone layer is the outer protein-rich layer of the endosperm in cereal grains, separating it from... Flower, fruit and seed 1 answer
Given below are two statements :Statement I : In a floral formula ⊕ stands for zygomorphic nature of the flower, and G (underlined) stands for inferior ovary.Statement II : In a floral formula ⊕ stands for actinomorphic nature of the flower and G (un… Answer: 4. Statement I is incorrect but statement II is correct Key idea: In floral formulae the symbol oplus means actinomorphic (radial sy... Flower, fruit and seed 1 answer
Match List I with List IIList I (Types of Stamens): A. Monoadelphous; B. Diadelphous; C. Polyadelphous; D. EpiphyllousList II (Example): I. Citrus; II. Pea; III. Lily; IV. China-roseChoose the correct answer from the options given below: Answer: 2. A-IV, B-II, C-I, D-III Key idea: classify stamens by how filaments are united. Monoadelphous (one bundle): China-rose (IV). Diade... Flower, fruit and seed 1 answer
Match List I with List IIList I: A. Rose; B. Pea; C. Cotton; D. MangoList II: I. Twisted aestivation; II. Perigynous flower; III. Drupe; IV. Marginal placentationChoose the correct answer from the options given below: Answer: 2. A-II, B-IV, C-I, D-III Key idea: match the plant with its floral feature. Rose: perigynous flower (II). Pea: marginal placentatio... Flower, fruit and seed 1 answer
Identify the type of flowers based on the position of calyx, corolla and androecium with respect to the ovary from the given figures (a) and (b) Answer: 1. (a) Perigynous; (b) Perigynous Key idea: the position of the thalamus and the other whorls decides hypogynous, perigynous or epig... Flower, fruit and seed 1 answer
Identify the part of the seed from the given figure which is destined to form root when the seed germinates. Answer: 4. C Key idea: in a monocot seed (grain), the radicle lies inside a protective sheath called the coleorhiza. In the figure, A is the... Flower, fruit and seed 1 answer
Which of the following is an example of actinomorphic flower? Answer: 2. Datura Key idea: actinomorphic flowers can be cut into two equal halves in any vertical plane (radial symmetry). Datura is actino... Flower, fruit and seed 1 answer
Given below are two statements : One is labelled as Assertion A and the other is labelled as Reason R :Assertion A : A flower is defined as modified shoot wherein the shoot apical meristem changes to floral meristem.Reason R : Internode of the shoot… Answer: 2. Both A and R are true and R is the correct explanation of A. Key idea: A flower is a modified shoot in which the shoot apical mer... Flower, fruit and seed 1 answer
Axile placentation is observed in Answer: 1. China rose, Petunia and Lemon Key idea: Axile placentation (ovary with two or more chambers, ovules on central axis) is found in... Flower, fruit and seed 1 answer
Which part of the fruit, labelled in the given figure makes it a false fruit ? Answer: 4. C → Thalamus A false fruit develops from parts other than the ovary, here the thalamus. In the figure (apple), the large outer fl... Flower, fruit and seed 1 answer
The ovary is half inferior in : Answer: 4. Plum The position of the ovary relative to other floral parts decides this. In plum (and rose, peach) the flower is perigynous an... Flower, fruit and seed 1 answer
Placentation, in which ovules develop on the inner wall of the ovary or in peripheral part, is : Answer: 3. Parietal Key idea: Placentation is the arrangement of ovules on the placenta inside the ovary. Marginal: along one margin of a si... Flower, fruit and seed 1 answer
The morphological nature of the edible part of coconut is : Answer: 2. Endosperm The edible white kernel of coconut is its endosperm. Coconut water is free-nuclear liquid endosperm, and the white kern... Flower, fruit and seed 1 answer
Coconut fruit is a : Answer: 4. Drupe Coconut is a drupe: a one-seeded fruit developed from a superior ovary. It has a fibrous mesocarp (husk) and a hard stony e... Flower, fruit and seed 1 answer
The term 'polyadelphous' is related to Answer: 1. androecium Polyadelphous means stamens united by their filaments into more than two bundles (for example in Citrus). Stamens belo... Flower, fruit and seed 1 answer
How many plants among *Indigofera*, *Sesbania*, *Salvia*, *Allium*, *Aloe*, mustard, groundnut, radish, gram and turnip have stamens with different lengths in their flowers? Answer: 1. Four Count the plants whose flowers have stamens of unequal length. Salvia: only two stamens, with unequal arms and a lever-like... Flower, fruit and seed 1 answer
Radial symmetry is found in the flowers of Answer: 4. *Brassica* Radial symmetry (actinomorphic) is seen in Brassica (cruciferae). Trifolium and Pisum have zygomorphic papilionaceous... Flower, fruit and seed 1 answer
Free-central placentation is found in Answer: 4. *Dianthus* Free-central placentation, in which ovules sit on a central axis without septa, is found in Dianthus and Primula. Arge... Flower, fruit and seed 1 answer
Match Column—I with Column—II and select the correct option using the codes given below :Column—I: a. Pistils fused together; b. Formation of gametes; c. Hyphae of higher Ascomycetes; d. Unisexual female flowerColumn—II: (i) Gametogenesis; (ii) Pisti… Answer: 3. (iii) (i) (iv) (ii) Match each term by its meaning: a. Pistils fused together = syncarpous (iii) b. Formation of gametes = gameto... Flower, fruit and seed 1 answer
Cotyledon of maize grain is called : Answer: 4. scutellum In maize (a monocot) the single cotyledon is a shield-shaped structure called the scutellum, lying towards one side of... Flower, fruit and seed 1 answer
The standard petal of a papilionaceous corolla is also called : Answer: 3. Vexillum Key idea: In a papilionaceous corolla (pea family), the large back petal is the standard or vexillum. There are two late... Flower, fruit and seed 1 answer
Tricarpellary, syncarpous gynoecium is found in flowers of : Answer: 1. Liliaceae Key idea: Liliaceae flowers have a tricarpellary, syncarpous gynoecium (superior ovary). Solanaceae has a bicarpellary... Flower, fruit and seed 1 answer

Page 1 of 2