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.
What are the advantage of leaves modified into spines in cactus plant?
The leaves of the cactus plant are modified into the spine because it helps them to lose less water during transpiration and also protects them from beings eaten by an animal.
What are the advantages of leaves modified into spines in cactus plant Brainly?
The leaves of cactus plant are modified into spine because it helps them to lose less water during transpiration and also protect from beings eaten by animal.
Which plant leaves are modified into pointed spines?
Opuntia is a xerophytic plant. It grows in the dessert where water is very limited. In it, the leaves of areoles are modified into sharp and pointed spines.
Why the leaves of desert plants modified as spines?
Its leaves are modified to extremely small-sized spines to minimize the surface area from which water can be lost. Its stem takes up the role of photosynthesis thus allowing it to survive in deserts.
What are the advantages of leaves plant?
These leaf particles add valuable nutrients right back into the soil, resulting in a stronger, healthier lawn. Insulation. A thin layer of mulched leaves can help protect your lawn from harsh winter conditions, ensuring a healthy lawn next spring.
Why are the leaves of cactus modified into spines Class 6?
The leaves of cactus are modified into spines, to prevent water loss from the surface of leaves. The green stem of the cactus plant contains chlorophyll. Thus, the stem is the centre of photosynthesis in the cactus plants instead of the leaves.
What is the importance of veins in leaves?
The veins in a leaf represent the vascular structure of the organ, extending into the leaf via the petiole and providing transportation of water and nutrients between leaf and stem, and play a crucial role in the maintenance of leaf water status and photosynthetic capacity.
How are leaves modified in a cactus?
Spines are also modified leaves. In cacti, spines are wholly transformed leaves that protect the plant from herbivores, radiate heat from the stem during the day, and collect and drip condensed water vapour during the cooler night.