Maximum growth in root occurs -a)At its tipb)Towards lightc)Behind the apexd)Towards apexCorrect answer is option 'C'. Can you explain this answer?

Question

Answer

Behind the root apex is the region of meristimatic activity according to ncert ..therefore maximum rapid cell division occurs there

Answer

At behind the Apex because in their presents of well activity of meristematic tissue so this part is very growing.

Answer

Activity of maristamatic tissue

Answer

Coz apex portion of root is protectiv tissue nd region of cell division is below the root cap

Answer

Maximum growth in root occurs behind the apex.

- The root apex is the region of the root where active cell division and growth occur. It is at the tip of the root and is covered by a protective root cap.
- The root apex contains a group of undifferentiated cells called the meristem. These cells divide rapidly and give rise to new cells, which then elongate and differentiate into various types of root tissues.
- The growth of the root occurs primarily in the region behind the apex, known as the elongation zone.
- In the elongation zone, the newly formed cells elongate and push the root tip forward, causing the root to grow in length.
- The cells in the elongation zone undergo rapid expansion due to the uptake of water, leading to cell elongation.
- As the cells elongate, they differentiate into different types of root tissues, such as the epidermis, cortex, endodermis, and vascular tissues.
- The elongation zone is characterized by actively dividing and expanding cells, which contribute to the rapid growth of the root.
- Behind the elongation zone is the maturation zone, where the cells differentiate further and become fully matured root tissues.
- The root apex, including the meristem, is protected by the root cap. The root cap helps in the penetration of the root through the soil and also protects the delicate meristematic cells from mechanical damage.
- The root cap is constantly being sloughed off and replaced by new cells produced by the meristem.
- So, the maximum growth in the root occurs behind the apex in the elongation zone, where cell elongation and differentiation take place, leading to the rapid growth of the root in length.

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