Auxin increases the _____________________ of cell walls.

Options

A. Plasticity
B. Thickness
C. Porosity
D. Rigidity

Answer

To solve the question "Auxin increases the _____________________ of cell walls," we can follow these steps:

### Step 1: Understand what Auxin is
Auxin is a plant growth hormone that plays a critical role in the growth and development of plants. It is primarily involved in processes such as cell elongation and growth.

**Hint:** Remember that Auxin is a plant hormone that influences growth.

### Step 2: Identify the role of Auxin in cell walls
Auxin increases the permeability of cell membranes and enhances the ability of cell walls to stretch. This is crucial for cell enlargement, which is a key aspect of plant growth.

**Hint:** Consider how Auxin affects the physical properties of plant cells.

### Step 3: Define the term related to cell walls
The term that describes the ability of cell walls to stretch and accommodate growth is "plasticity." Auxin enhances this plasticity, allowing cells to expand and elongate.

**Hint:** Think about the term that describes the flexibility and stretchability of materials, especially in the context of plant cells.

### Step 4: Fill in the blank
Based on the understanding that Auxin increases the ability of cell walls to stretch and grow, we can conclude that the correct answer to the question is "plasticity."

**Final Answer:** Auxin increases the **plasticity** of cell walls.