Directions : In the following question, the Assertions (A) and Reason (R) have been put forward. Read both the statements and choose the correct option from the following.
Assertion : Pea has vexillary type of aestivation.
Reason : In this type of aestivation, the posterior petal is the largest and covers almost the two lateral petals, and the latter in their turn, nearly overlap the two anterior or smallest petals.
Directions : In the following question, the Assertions (A) and Reason (R) have been put forward. Read both the statements and choose the correct option from the following.
Assertion : In perigynous flowers is ovary is called half-inferior.
Reason : Rose and plum plants bear perigynous flowers.
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An example of a plant belonging to family Solanaceae.
Ovary is half -inferior in
When stamens are attached to the perianth, the condition is called
Assertion (A): In monocotyledonous plants, the primary root is short-lived and is replaced by a large number of roots originating from the base of the stem.
Reason (R): Monocotyledonous plants have a fibrous root system that helps in providing a more extensive network for water and nutrient absorption.
Assertion :In imbricate aestivation, out of five petals, one is completely internal. One is completely external and in each of the remaining three petals, one margin is internal and the other is external.
Reason: Ascending imbricate aestivation is found in Cassia and gulmohar.
Assertion (A): The root cap is absent in hydrophytes.
Reason (R): Hydrophytes are plants that grow in water, where the soil is not present to offer resistance to root growth.
Read the assertion and reason carefully to mark the correct option in question.
Assertion: Datura, mustard and chilli shows actinomorphic/bilateral symmetry.
Reason: These flowers can be divided into two similar halves only in one particular vertical plane.
Assertion (A): In some plants, roots are modified to perform functions other than absorption and conduction of water and minerals.
Reason (R): Modification of roots includes changes in shape and structure to store food, provide support, and help in respiration.
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