Maximum transpiration occurs through stomata.So stomatal transpiration is maximum. And minimum transpiration occurs through cuticles of the plants so cuticular transpiration is the minimum one.

Where transpiration is maximum in plants?

- Stomata transpiration: Stomata is the structures present in the leaf surface, where the majority of transpiration, occurring in plants are through stomata only.

In which season transpiration is highest?

Transpiration rates were higher during the dry season than during the wet season.

Which side of the leaf has more stomata?

All surfaces of the leaf have some amount of stomata for regulating gas exchange for photosynthesis. However, the lower epidermis (the underside of the leaf) has more, because it is more often in the shade and so it is cooler, which means evaporation won't take place as much.

Is xylem involved in transpiration?

Transpiration is ultimately the main driver of water movement in xylem. The cohesion-tension model works like this: Transpiration (evaporation) occurs because stomata are open to allow gas exchange for photosynthesis.

FACTORS AFFECTING THE RATE TRANSPIRATION GCSE Biology 9-1 | Combined Sci

22 related questions found

Which plant has minimum transpiration?

Correct Option: A. Nerium is a xerophytic plant and has sunken stomata, confined to lower epidermis to reduce the rate of transpiration.

Does maximum transpiration occur through stomata?

Transpiration through the leaves occur through the stomata. Most of water loss in plants occur through the leaves. Minimal water in plants is lost through the cuticles and the stem. Therefore the maximum Transpiration occurs through the leaves through the stomata.

Where does the most transpiration take place?

Many parts of the plant body do take part in the transpiration process but the stomatal aperture of the leaf is the place where most of the transpiration takes place as it is in direct contact with the atmosphere and are the extremities of the plant body.

Where does the most transpiration take place Class 10?

Transpiration mainly takes place in the aerial part of the plant, stomata of leaves evaporate high amounts of water in form of vapour which helps to keep the plant cool.

When transpiration is very fast?

Plants transpire more rapidly in the light than in the dark. This is largely because light stimulates the opening of the stomata (mechanism). Light also speeds up transpiration by warming the leaf. Plants transpire more rapidly at higher temperatures because water evaporates more rapidly as the temperature rises.

Which plant transpires the most?

Areca Palm. The areca palm, or Chrysalidocarpus lutescens, has one of the highest transpiration rates of any houseplant and is especially effective at adding moisture to indoor air.

What is the percentage of cuticular transpiration?

Loss of water may also take place through cuticle, but the amount so lost is relatively small and make up only about 5 to 10 percent of the total transpiration. This type of transpiration depends upon the thickness of the cuticle and presence or absence of wax coating on the surface of the leaves.

On which day will the rate of transpiration be the fastest?

AS THE EVAPORATION WILL BE FASTER ON A HOT DAY.... ND DRY AND WINDY DAY. THE WIND CARRIES AWAY THE WATER MOLECULES FROM THE SURFACE ND COOLS THE SURFACE FASTER.

Which is the action spectrum of transpiration?

Stomata open in response to light. The action spectrum consists of red and blue light (blue light is more effective in stomatal opening). Since most of the transpiration is stomatal, the action spectrum of transpiration is red and blue light.

What is transpiration minimum?

Maximum transpiration occurs through stomata.So stomatal transpiration is maximum. And minimum transpiration occurs through cuticles of the plants so cuticular transpiration is the minimum one.

What is plant Guttation?

Guttation is the appearance of little droplets of liquid on the leaves of plants.

Are stomata?

Stomata are the tiny openings present on the epidermis of leaves. ... In some of the plants, stomata are present on stems and other parts of plants. Stomata play an important role in gaseous exchange and photosynthesis. They control by transpiration rate by opening and closing.

In which of the following conditions the transpiration pull will be the maximum?

Open stomata, high humid atmosphere and dry soil.

When the rate of transpiration is more?

Temperature: Plants transpire more rapidly at higher temperatures because water evaporates more rapidly as the temperature rises. Humidity:Humidity is expressed as the percentage of water vapour present in the atmosphere. The higher the relative humidity of the outside atmosphere, the lower the rate of transpiration.

In which of the following will transpiration be fastest?

Answer: 2 option , A hot ,humid, windy day .

What are the 3 types of transpiration?

Depending on the organ that performs transpiration, the different types are:

• Stomatal transpiration: It is the evaporation of water through stomata. ...
• Cuticular transpiration: Cuticle is an impermeable covering present on the leaves and stem. ...
• Lenticular Transpiration: It is the evaporation of water through lenticels.

Are Antitranspirants?

Antitranspirants are compounds applied to the leaves of plants to reduce transpiration. ... Metabolic inhibitors reduce the stomatal opening and increase the leaf resistance to water vapour diffusion without affecting carbon dioxide uptake. Examples include phenylmercury acetate, abscisic acid (ABA), and aspirin.

Which surface of the leaf transpires most Why?

Lower surface of the leaf transpires most.

• Loss of water from the leaf surface in form of vapour is called transpiration.
• Transpiration is maximum from the lower surface of the leaf.
• It is because usually the distribution and number of stomata vary in the lower and upper surface of leaves.

What plant has the highest rate of photosynthesis?

The maximum rate of photosynthesis occurs in the red and blue regions of the visible light as seen in the absorption spectra of chlorophyll a and b. For instance, sorghum, sugarcane, corn etc are C4 plants.