The opening and closing of pores in the epidermis of plant tissues is controlled by two guard cells. These pores are called stomata.

Here are the steps of how it works:

1. Water enters the guard cells, causing them to swell and the stomata to open. This process is facilitated by the absorption of potassium ions by the guard cells.

2. When the plant has lost a large amount of water or is under stress, the guard cells lose water and become flaccid, causing the stomata to close. This helps to prevent further water loss.

3. The opening and closing of stomata are also influenced by light, temperature, and concentration of carbon dioxide. For example, stomata are usually open during the day when photosynthesis can occur and closed at night.

4. The movement of water in and out of the guard cells changes their shape and the size of the stomatal opening. This is a key mechanism that plants use to regulate gas exchange and water loss.

Question

The opening and closing of pores in the epidermis of plant tissues is controlled by two guard cells. These pores are called stomata.

Here are the steps of how it works:

1. Water enters the guard cells, causing them to swell and the stomata to open. This process is facilitated by the absorption of potassium ions by the guard cells.

2. When the plant has lost a large amount of water or is under stress, the guard cells lose water and become flaccid, causing the stomata to close. This helps to prevent further water loss.

3. The opening and closing of stomata are also influenced by light, temperature, and concentration of carbon dioxide. For example, stomata are usually open during the day when photosynthesis can occur and closed at night.

4. The movement of water in and out of the guard cells changes their shape and the size of the stomatal opening. This is a key mechanism that plants use to regulate gas exchange and water loss.

Knowee AI · Accepted Answer

The opening and closing of pores in the epidermis of plant tissues is controlled by two guard cells. These pores are called stomata.

Here are the steps of how it works:

1. Water enters the guard cells, causing them to swell and the stomata to open. This process is facilitated by the absorption of potassium ions by the guard cells.

2. When the plant has lost a large amount of water or is under stress, the guard cells lose water and become flaccid, causing the stomata to close. This helps to prevent further water loss.

3. The opening and closing of stomata are also influenced by light, temperature, and concentration of carbon dioxide. For example, stomata are usually open during the day when photosynthesis can occur and closed at night.

4. The movement of water in and out of the guard cells changes their shape and the size of the stomatal opening. This is a key mechanism that plants use to regulate gas exchange and water loss.

The opening and closing of pores called in the epidermis of plant tissues is controlled by two cells.

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