plant

What are plants?

Plants are multicellular, eukaryotic organisms that form the kingdom Plantae. They are primarily photosynthetic, meaning they create their own food using sunlight.

What are the key characteristics of plants?

Key characteristics of plants include:

• Photosynthesis: They produce their own food using sunlight, water, and carbon dioxide.

• Cell walls: Their cells have rigid cell walls made primarily of cellulose.

• Stationary: Most plants are immobile and rooted in one place.

• Alternation of generations: Their life cycle involves both diploid (sporophyte) and haploid (gametophyte) stages.

What are the main parts of a vascular plant?

The main parts of a vascular plant include:

• Roots: Anchor the plant and absorb water and nutrients from the soil.

• Stem: Provides support, transports water and nutrients, and holds leaves and flowers.

• Leaves: Primary sites of photosynthesis and gas exchange.

• Flowers/Cones: Reproductive structures.

• Fruits/Seeds: Involved in seed dispersal and protection.

What is photosynthesis?

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll. It converts light energy into chemical energy, producing glucose (sugar) and oxygen from carbon dioxide and water. The overall equation is: 6CO2 + 6H2O + ext{Light Energy} \to C6H{12}O6 + 6O2