๋࣭ ⭑structure๋࣭ ⭑

• phloem transports sugars produced by photosynthesis throughout the plant.
• the xylem is responsible for the transport of water, minerals, and other dissolved substances from roots to leaves.
• xylem is made up of dead cells that transport water from roots to leaves, stems, and flowers.
• the xylem vessels are hollow tubes with thick walls made of lignin.
• cohesion-tension theory states that water molecules stick together (cohesion) and form long chains called columns or strands (tension).
• water moves through the xylem due to cohesion-tension theory
• transpiration is the process whereby plants lose water vapor through their stomata.
• stomata are tiny openings on the underside of leaves that allow gases such as carbon dioxide and oxygen to enter and exit the leaf.
• guard cells control the opening and closing of stomata based on environmental conditions like light intensity and humidity.
• What is translocation in plants?

  Movement of sugars through phloem.