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Biology · MORPHOLOGY OF FLOWERING PLANTS
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Biology · MORPHOLOGY OF FLOWERING PLANTS
Given below are two statements: Statement I: When margins of sepals or petals overlap one another in a particular direction (e.g., in china rose), the aestivation is called valvate. Statement II: In vexillary aestivation, the largest standard petal overlaps the two lateral petals (wings), which in turn overlap the two smallest anterior petals (keel). In the light of the above statements, choose the most appropriate answer from the options given below:
Read answer →Biology · MORPHOLOGY OF FLOWERING PLANTS
When stamens are attached to petals, the condition is described as:
Read answer →Biology · MORPHOLOGY OF FLOWERING PLANTS
What type of aestivation is characterized by margins of sepals or petals overlapping one another without any particular direction, as seen in Cassia and gulmohur?
Read answer →Biology · MORPHOLOGY OF FLOWERING PLANTS
Consider the following statements regarding the regions of the root: (A) The region of meristematic activity is located a few millimetres above the root cap. (B) Cells proximal to the meristem region undergo rapid elongation and enlargement. (C) Root hairs are formed from epidermal cells in the region of maturation. (D) The root cap protects the tender apex of the root as it makes its way through the soil. Which of the above statements are correct?
Read answer →Biology · MORPHOLOGY OF FLOWERING PLANTS
The shield-shaped cotyledon in monocotyledonous seeds (such as maize) is known as:
Read answer →Biology · MORPHOLOGY OF FLOWERING PLANTS
Which of the following parts of the root is primarily responsible for the absorption of water and minerals from the soil?
Read answer →Biology · MORPHOLOGY OF FLOWERING PLANTS
Which type of placentation is shown in diagram (c)?
Read answer →Biology · MORPHOLOGY OF FLOWERING PLANTS
Read the following statements about inflorescence and floral morphology: (A) In raceme inflorescence, the main axis continues to grow and flowers are borne laterally in acropetal succession. (B) In a cymose type of inflorescence, the main axis terminates in a flower, showing limited growth in basipetal order. (C) Ray florets of sunflower exhibit superior ovary condition. (D) When stamens are attached to petals, the condition is termed epipetalous. Which of the above statements are correct?
Read answer →Biology · MORPHOLOGY OF FLOWERING PLANTS
Given below are two statements: Statement I: The monocotyledonous seed is generally non-endospermic with bulky food storage tissues. Statement II: In maize, the outer covering of endosperm separates the embryo by a proteinaceous layer called aleurone layer. Which of the above statements is/are correct?
Read answer →Biology · MORPHOLOGY OF FLOWERING PLANTS
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): The underground part of a flowering plant is primarily the root system while the portion above the ground forms the shoot system. Reason (R): The primary root develops from the direct elongation of the radicle inside the soil. In the light of the above statements, choose the correct answer from the options given below:
Read answer →Biology · MORPHOLOGY OF FLOWERING PLANTS
In which type of aestivation do the edges of petals overlap the next one and so on, as seen in china rose, lady's finger, and cotton?
Read answer →Biology · MORPHOLOGY OF FLOWERING PLANTS
Which of the following plants features a swollen leaf base called pulvinus?
Read answer →Biology · MORPHOLOGY OF FLOWERING PLANTS
When the margins of sepals or petals overlap one another without any particular direction, the aestivation is called:
Read answer →Biology · MORPHOLOGY OF FLOWERING PLANTS
Given below are two statements: Statement I: In apocarpous condition, carpels are fused together as seen in mustard and tomato. Statement II: When more than one carpel is present in a flower, they may be free as in lotus and rose, and are called apocarpous. In the light of the above statements, choose the most appropriate answer from the options given below:
Read answer →Biology · MORPHOLOGY OF FLOWERING PLANTS
In a monocotyledonous seed, the outer covering of endosperm separates the embryo by a proteinaceous layer called:
Read answer →Biology · MORPHOLOGY OF FLOWERING PLANTS
A sterile stamen is referred to in botanical terminology as:
Read answer →Biology · MORPHOLOGY OF FLOWERING PLANTS
Analyze the table below summarizing floral characteristics and identify the incorrect pair: class="table table-bordered my-2 w-100" style="border-collapse: collapse; width: 100%;"> Family / Plant Placentation Type (1) PeaMarginal (2) China roseAxile (3) DianthusParietal (4) SunflowerBasal Which pair is incorrectly matched?
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Consider the following statements about leaf structure and venation: (I) Reticulate venation is characteristic of dicotyledonous plants. (II) In monocotyledons, the leaf base expands into a sheath covering the stem partially or wholly. (III) In a pinnately compound leaf, a number of leaflets are present on a common axis called rachis. (IV) A bud is present in the axil of leaflets of compound leaves. How many of the above statements are correct?
Read answer →Biology · MORPHOLOGY OF FLOWERING PLANTS
Which of the following regions of the root is responsible for the growth of the root in length through rapid elongation and enlargement?
Read answer →Biology · MORPHOLOGY OF FLOWERING PLANTS
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): In a pinnately compound leaf, a number of leaflets are present on a common axis called the rachis. Reason (R): The rachis represents the modified petiole of the leaf. In the light of the above statements, choose the correct answer from the options given below:
Read answer →Biology · MORPHOLOGY OF FLOWERING PLANTS
Which of the following families is characterized by alternate, simple, exstipulate leaves and a bicarpellary, bilocular ovary with obliquely placed septum?
Read answer →Biology · MORPHOLOGY OF FLOWERING PLANTS
Given below are two statements: Statement I: In parietal placentation, the ovary is one-chambered initially but it becomes two-chambered due to the formation of a false septum. Statement II: Free central placentation is observed in Dianthus and Primrose where ovules are borne on central axis and septa are present. Which of the above statements is/are correct?
Read answer →Biology · MORPHOLOGY OF FLOWERING PLANTS
