Phloem is a critical type of vascular tissue found in plants.
Its main function is the transport of energy-rich organic molecules, primarily sugars (like sucrose), which are produced during photosynthesis. This process is known as translocation.
This transport moves sugars from the leaves (where they are made) to other parts of the plant, such as roots, fruits, and storage organs, providing nourishment for growth and metabolic activities. This is different from the xylem's role, which transports water and minerals.
One advantage of sexual reproduction over asexual reproduction is that it helps species to survive over long evolutionary time. This is because sexual reproduction produces :
During a laboratory experiment, a student immerses epidermal leaf peel in a hypertonic solution. After some time, the student examined the cells under a microscope and observed that:
The breakdown of glucose in cytoplasm results in the formation of
After fertilization, the fruit and the seed are produced by