Anatomy of Flowering Plants

The balloon-shapedstructures called tyloses

Match List I with List II : List IList IIA. Conjunctive tissueI. Specialised cells in the vicinity of guard cellsB. Casparian stripsII. Endodermal cells rich in starchC. Subsidiary cellsIII. Tissue between xylem and…

Match List - I with List.-II. List-I List-II (a) Lenticels (i) Phellogen (b) Cork cambium (ii) Suberin deposition (c) Secondary cortex (iii) Exchange of gases (d) Cork (iv) Phelloderm Select the correct answer from the…

Match List - I with List.-II. List-I List-II (a) Cells with active cell division capacity (i) Vascular tissues (b) Tissue having all cells similar in structure and function (ii) Meristematic tissue (c) Tissue having…

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R: Assertion A: Late wood has fewer xylary elements with narrow vessels. Reason R: Cambium is less active in winters. In…

Programmed cell death (PCD) is a tightly regulated process that is important in the growth and development of plants. In plants there are several tissues which become functional after undergoing PCD. Which of the…

Assertion : Annual rings are used to calculate the age of tree. Reason : Secondary growth is not found in bamboo.

Chlorenchyma is known to develop in the

Ectophloic siphonostele is found in

Assertion : In woody stems, the amount of heart wood continues to increase year after year. Reason : The cambial activity continues uninterrupted.

In a plant organ which is covered by periderm and in which the stomata are absent, some gaseous exchange still takes place through

Assertion : Water and mineral uptake by root hairs from the soil occurs through apoplast until it reaches endodermis. Reason : Casparian strips in endodermis are suberized.