Important Questions Test: Getting to Know Plants - UPSC MCQ

Flowers are generally considered the most beautiful part of a plant due to their vibrant colours, which often serve to attract pollinators. While beauty can be subjective, flowers typically display the most striking and colourful features in many plants.

The part of plant above the ground is called as shoot system, which includes stem, branches and leaves.

Leaves are green due to presence of green pigment called chlorophylls inside chloroplast.

Tiny pores on the surface of leaves are called stomata. Stomata is responsible for exchange of gases and transpiration.

• Leaves: The part of spinach used as a vegetable is the leaves.
• Nutritional Value: Spinach leaves are rich in iron, which is essential for blood health, and protein, important for muscle repair and growth.
• Culinary Uses: Spinach leaves can be eaten raw in salads or cooked in various dishes, making them versatile in the kitchen.

Trees are characterized by having a thick and hard stem, known as a trunk, which supports the plant as it grows taller. This is a key feature that distinguishes trees from other types of plants like herbs, shrubs, and climbers.

Pollen grains are produced in the anther of the stamen. The stamen is the male reproductive organ of a flower responsible for producing male gametes.

Primary function of leaf is to prepare food by the process of photosynthesis in presence of sunlight.

The spines of cactus are modified leaves to reduce rate of transpiration in plants.

Carrot has a taproot system where one main root grows downwards with smaller lateral roots.