Problemas
7. Which structures open and close the stoma to allow gas exchange and reduce water loss in leaves? A. epidermis B. vascular tissue C. guard cells D. spongy mesophyll loots and Stems
Roztwór
Agustina
élite · Tutor durante 8 años
4.4
(243 Votos)
Respuesta
The correct answer is C. Guard cells.
Explicación
## Step 1The question is asking about the structures in leaves that open and close the stomata to allow gas exchange and reduce water loss. The stomata are small openings on the surface of leaves that allow gases to be exchanged between the plant and the atmosphere.## Step 2The options provided are:A. EpidermisB. Vascular tissueC. Guard cellsD. Spongy mesophyll## Step 3The epidermis is the outermost layer of cells covering the plant. It does not control the opening and closing of the stomata.## Step 4Vascular tissue is responsible for the transport of water, nutrients, and sugars throughout the plant. It does not control the opening and closing of the stomata.## Step 5Guard cells are specialized cells in the epidermis of leaves, stems, and other organs that are used to control the opening and closing of the stomata. They do this by changing shape in response to environmental conditions.## Step 6Spongy mesophyll is a type of tissue in the interior of leaves where gas exchange occurs. It does not control the opening and closing of the stomata.