Question

Which part of the cactus plant performs photosynthesis?

OPTIONS

A. Spines
B. Flowers
C. Stems
D. Roots

Answer 1

Answer:

A. Spines

Explanation:

Cactus grows in desert environment, where there is scarcity of water. 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.

Answer 2

The spines of the cactus plant perform photosynthesis.

• Cactus plants are modified plants that grow in areas that are deficient in water.
• Areas of water scarcity have plants that have modified themselves to prevent themselves from getting dry due to heat.
• In such plants the leaves, the converted to spines since the spines have less surface area which can prevent the loss of water from the plants.
• The spines in the cactus contain chlorophyll and have the ability to produce food that is they can produce their own food through the process of photosynthesis.
• The stems of the cactus plants are modified to thick pads that store water and food in them for further use.

Option A is the correct option.

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