Plants

• Stomata are small openings on leaves that allow gases like oxygen and carbon dioxide to enter or exit the plant.
• The guard cells control the opening and closing of stomata, which helps regulate water loss from the plant.
• Plant roots absorb nutrients and water from soil through tiny root hairs.
• Xylem is responsible for transporting water and minerals upwards within plants.
• Phloem transports synthesized food substances from one part to another part
• Chlorophyll gives leaves their green color and absorbs light energy during photosynthesis
• Leaves contain chloroplasts where photosynthesis occurs
• Transpiration is the evaporation of water from the aerial parts of plants
• stomata are pores in the epidermis of the leaves and stems
• A pair of guard cells bound each stoma
• Stomata allow gases to diffuse in and out of the leaf
• The necessary factors for photo synthesis are sunlight,water, carbon dioxide, and chlorophyll
• Light energy absorbed by chlorophyll is used to convert carbon dioxide into glucose
• Chloroplasts contain chlorophyll, which absorbs light energy and converts it into chemical energy.
• Phloem consists mainly sieve tubes
• Xylem consists mainly of vessels
• Sieve tube cells have no nucleus or other organelles except plasmodesmata