Do cacti have sunken stomata?

Cacti typically have sunken stomata, which are an adaptation to drought conditions. An additional adaptation to a harsh environment is the fine covering of wax across the leaf or stem surface.

Where are sunken stomata found?

Halophytes. Hint: The term sunken means hidden so sunken stomata are the type of stomata that are hidden or not directly exposed to the surface. They are found below the leaves and the epidermis in the plants. These stomata are present in a small pit.

Do Hydrophytes have sunken stomata?

Plants perform stomatal transpiration i.e loss of water in form of water vapour through stomata. Sunken stomata are usually present in plants found in dry environments to prevent water loss. Complete answer: Since, there is no need to save a lot of water, fewer stomata are present in hydrophytes.

Do all gymnosperms have sunken stomata?

Note: In gymnosperms, the leaves are needle shaped and are covered with a covering known as the cuticle. The stomata are found on the underside of the leaves and they are found to be sunken to deep layers of the epidermis. In gymnosperm, species such as Pinus, Cycas, and Taxus show deeply sunken stomata.

Which of the following plant is sunken?

In xerophytes the stomata are sunken as they are located in a cup-shaped depression (e.g., Nerium). It is an adaptation to reduce the loss of water in xerophytic plants.

Why xerophytes have sunken stomata?

Answer: sunken stomata are present in xerophytic so as to reduce the water loss from the plants because xerophytic plants are dessert plants and they already have less amount of water in them . That’s why they have to store the water and for this the stomata s are sunken in them…..

What cactus does not have for transpiration?

Cactus doesn’t have leaves for transpiration as its leaves are modified into spines to reduce the amount of water loss.

Is Nerium a xerophyte?

Leaves: The leaves are modified in such a way that water loss due to transpiration reduces to minimum. Depending on the shape of the leaves and their structure, xerophytes are classified into following four classes: Trichophyllous: Leaves are covered with hairs; e.g., Nerium, Calotropis.

Are submerged Hydrophytes?

SUBMERGED FLOATING HYDROPHYTES These are the plants in contact with only water, being completely submerged and not rooted in the mud. Their stems are long and leaves generally small. Some of the examples are Ceratophyllum, Utricularia, Najas, etc.

Do Pinus have sunken stomata?

In gymnosperm, species such as Pinus, Cycas, and Taxus show deeply sunken stomata. The sunken stomata help to reduce the loss of water from the surface of the leaves.

Does oleander have sunken stomata?

Oleander also has defenses against herbivory, making the entire plant extremely toxic, even to humans. Instead of sunken stomata, the epidermis in oleander recesses and creates a pocket that is lined with trichomes. The stomata are located at the base of these pockets, called stomatal crypts.

Does Nerium have sunken stomata?

Option A: Nerium is a xerophyte it has sunken stomata to curtail the water loss by transpiration. To reduce water loss through transpiration Xerophytic plants such as Nerium have sunken stomata. Therefore, this is the correct option. It does not have sunken stomata.

What are sunken stomata and where are they found?

Sunken stomata are commonly found in plants in arid environments as one of their adaptations to preserve water. Plants with sunken stomata often have fewer stomata in general than plants. Sunken stomata are a feature of many plants in deserts and other dry environments. This plants are generally reffered to as xerophytes.

Do any plants have stomata without leaves?

There are plants (e.g. hydrophytes and most lower plants) which don’t use stomata, but these generally don’t have leaves and use other mechanisms for gaseous exchange, such as dir

Why do plants need stomata in a dry environment?

In moist environments, this is often necessary because the plants take in more water than is necessary for photosynthesis. It is not necessary in deserts, but because of the need for stomata for gas exchange, plants in dry environments cannot prevent some water loss.

Why are stomata sunken in pits in xerophytes?

Stomata sometime become sunken in pits to prevent direct exposure. The pits also contains hairs and protect the stomata from direct wind current. They are morphological features of xerophytes to reduce water loss by transpiration . In this condition the stomata is surrounded by hair like projections from surrounding epidermal cells.