Test IV

• Tracheids are lodged in vascular bundles throughout the non-woody parts of stem.
• Cell Wall is a rigid structure surrounding each plant cells.
• Roots are the basal part of the stem, which absorb water and minerals needed to perform photosynthesis and anchorage of plants.
• Root hair is a tiny, hair-like extension.
• Zone of Maturation is a water and nutrient conducting region from the root hair up to stem.
• Zone of Elongation is where new cells are growing.
• Meristematic Zone includes the root tip of meristem and root cap.
• Root Tip of Meristem is the part at the root tips where cell division is actively taking place to support root elongation.
• Cortex is the primary tissue of the root.
• Ecosystem is composed of interdependent and interrelated living and non-living entities.
• Population is a set of organisms belonging to the same group or species and occupying a particular area at the same time.
• Carrying Capacity is defined as the maximum number of species that can be supported by a certain environment.
• Oxygen Cycle is a biogeochemical cycle in which oxygen in Earth circulates through the biotic and abiotic components of the ecosystem.
• Biogeochemical Cycle is a pathways where minerals and other nutrients from both organic and inorganic matters are cycled through the pathways of inputs and outputs where matter is exchanged and transported.
• Soil is a major site for the transformation, storage, and global cycling of nutrients.
• Decomposition is the process of breaking down complex organic matter.
• Decomposers or Saprotrophs are the organisms that carry out decomposition process.
• Humic Substances are the residues that are not broken down are converted into complex organic compounds.
• Eutrophication is the enrichment of an ecosystem with nutrients.
• Algal Bloom is the initial effect of eutrophication is the excessive growth of aquatic organisms such as microalgae and flagellate protists.
• Hydroponics is a method of growing plants in water or in a soilless medium.
• Film Technique is one of most significant achievement in hydroponics technology.
• Aerohydroponics is the process by which plants are grown by supplying oxygen to their roots and by not using any growing medium.