When leaves are reduced to spines These plants are adapted to?
The correct answer is to reduce water loss. The leaves of the desert plants are reduced to spines to help to prevent the loss of water by transpiration.
Why are leaves reduced to spines?
The leaves of ‘cactus’ are reduced to ‘spines’ to prevent the loss of water by transpiration. EXPLANATION: Leaves lose water by the process of transpiration but cactus grows in deserts and cannot afford to lose water. The spines of the cactus store water.
What leaves are reduced to spines?
opuntia, cactus, firethorn
leaves of some plants are reduced to spines In order to prevent water loss and reduce rate of transpiration. this kind of plant grows in desert areas where dry conditions are dominant.
How are leaves adapted to reduce transpiration?
The leaves in hot or dry environments may be adapted to reduce transpiration .
|Leaves reduced to spines||Reduces the surface area for transpiration|
|Reduced number of stomata||Reduces the transpiration rate|
|Waxy leaf cuticle||Impermeable to water, which stops evaporation|
What is the advantage of leaves reduced to spines in some Xerophytes?
Spines lose less water than leaves so are very efficient in a hot climate. Spines also prevent animals from eating the plant. Waxy skin – some leaves have a thick, waxy skin on their surface. This reduces water loss by transpiration .
Why are leaves reduced to spines in desert plant?
The leaves of the desert plants are reduced to spines to help to prevent the loss of water by transpiration. … Since in deserts, there is a scarcity of water, if the plants lose more water, they will not survive. Hence to prevent this such adaptations have been developed.
What are advantages of leaves modified into spines?
Answer: Most species of cacti have lost true leaves, retaining only spines, which are highly modified leaves. As well as defending against herbivores, spines help prevent water loss by reducing air flow close to the cactus and providing some shade. In the absence of leaves, enlarged stems carry out photosynthesis.
Why are leaves reduced to scales spines in desert plant?
Answer: The desert plants have scale- or spine-like leaves to reduce loss of water by transpiration. These plants have green stems which carry out photosynthesis. … The presence of starch in leaves indicates the occurrence of photosynthesis.
Why leaves of Kalabanda are reduced to spines?
to prevent loss of water because reduction in surface area of leaves will reduce transpiration and there will be less water loss, and also to protect themselves from predators.
How does the rate of loss of water get reduced in desert plants?
Answer : Cuticle is a protective waxy covering produced by epidermal cells of leaves and other plant parts. In desert plants, cuticle reduces the rate of water loss through transpiration and helps in conserving water as there is always a shortage of water for desert plants.
How having no leaves can help a cactus plant to reduce water loss?
For example, the prickly spines of cacti are actually highly-modified leaves. Spines protect cacti from animals that eat plants and also help to reduce water loss by restricting air flow near the cactus. Most cacti have extensive, but shallow root systems that allow them to soak up any rainfall that may come their way.
What are 3 adaptations that allowed plants to prevent water loss?
Here are four important adaptations:
- The Cuticle.
- Leaf Hairs.
- Partnerships with microorganisms.
- Plants form symbiotic relationships with soil microorganisms like endo and ecto mycorrhizae fungi.
What are 2 adaptations plants have that has evolved to deal with too much water?
For example, some leaves have drip tips that act like a spout, allowing extra water to dribble off. Some leaves are thick and waxy so extra water can form beads and fall down to the plant’s roots. The leaves of some plants and trees are adapted to catch rain as it falls and hold it.
What prevents water loss in leaves?
A waxy layer known as the cuticle covers the leaves of all plant species. The cuticle reduces the rate of water loss from the leaf surface.