Photosynthesis Test - 4

CAM photosynthesis occurs in plants with fleshy green leaves.

Crassulacean acid metabolism, also known as CAM photosynthesis, is a carbon fixation pathway that evolved in some plants as an adaptation to arid conditions. In a plant using full CAM, the stomata in the leaves remain close during the day to reduce evapotranspiration, but open at night to collect carbon dioxide \((CO_{2})\). It occurs in plants with fleshy green leaves and succulents.

Hence, the correct option is (C).

In plants, leaves are the food factories. Therefore, all the raw materials, like water and minerals, carbon dioxide must reach leaves.

Chlorophyll, the green pigment present in leaves helps to capture the energy of the sunlight to synthesize (prepare) food from carbon dioxide and water. The process is called photosynthesis because the synthesis of food occurs in the presence of sunlight.

Hence, the correct option is (A).

Chlorophyll is the green photosynthetic pigment found in plants, algae, and cyanobacteria. Chlorophyll is a specific form of chlorophyll used in oxygenic photosynthesis. It absorbs most energy from wavelengths of violet-blue and orange-red light but it reflects green light. So, the leaves appear green.

Hence, the correct option is (A).

The chloroplast is the cell organelle that is present in the leaves and the stem. The calyx also contains the chloroplast. These are green in color and can perform photosynthesis. The root does not have any chloroplast and is involved in providing support and storage. 

Hence, the correct option is (B).

Blue color of light gives maximum absorption peak by chlorophyll a.

Chlorophylls are present in chloroplasts, which absorb light energy. Chlorophyll a is the primary photosynthetic pigment and is found in all photosynthetic organisms except bacteria. The chlorophyll-a absorbs blue, yellow and red wavelengths of the spectrum. It shows maximum absorption of blue light.

Hence, the correct option is (A).