Question

state the location and function of different types of meristems

Answer 1

Meristems are specialised regions of plant growth. The meristems mark the regions where active cell division and rapid division of cells take place. Meristems are of three types depending on their location.

Apical meristem

It is present at the root apex and the shoot apex. The shoot apical meristem is present at the tip of the shoots and its active division results in the elongation of the stem and formation of new leaves. The root apical meristem helps in root elongation.



Intercalary meristem

It is present between the masses of mature tissues present at the bases of the leaves of grasses. It helps in the regeneration of grasses after they have been grazed by herbivores. Since the intercalary meristem and the apical meristem appear early in a plant’s life, they constitute the primary meristem.

Lateral meristem

It appears in the mature tissues of roots and shoots. It is called the secondary meristem as it appears later in a plant’s life. It helps in adding secondary tissues to the plant body and in increasing the girth of plants. Examples include fascicular cambium, interfascicular cambium, and cork cambium

Answer 2

Title:

Meristem is found in the plants. It is an area of plant cells that are dividing continuously in plants. It has the capability of active division and growth.  

Explanation:

Meristem is characterized into three types according to there location:  

1. Apical meristem: It is also called primary meristem as it produces the primary plant body. It is located at the root and shoots tips.  

2. Lateral meristems: It is also called secondary meristem as it is involved in the secondary growth of the plant and also increases the stem girth and thickness. It is also responsible for healing wounds in plants. Lateral meristems are found in at internodes and stem region.