describes chemical reactions that require energy input

innermost layer of tissue in the heart

innermost part of fruit

process of bone development from hyaline cartilage

cell that releases ligands involved in endocrine signaling (hormones)

gland that secretes hormones into the surrounding interstitial fluid, which then diffuse into blood and are carried to various organs and tissues within the body

long-distance signal that is delivered by ligands (hormones) traveling through an organism's circulatory system from the signaling cell to the target cell

system that controls the response of the various glands in the body and the release of hormones at the appropriate times

type of active transport that moves substances, including fluids and particles, into a cell

layer of cells in the root that forms a selective barrier between the ground tissue and the vascular tissue, allowing water and minerals to enter the root while excluding toxins and pathogens

group of organelles and membranes in eukaryotic cells that work together modifying, packaging, and transporting lipids and proteins

series of interconnected membranous structures within eukaryotic cells that collectively modify proteins and synthesize lipids

skeleton of living cells that produces a hard, mineralized tissue located within the soft tissue of organisms

triploid structure resulting from fusion of a sperm with polar nuclei, which serves as a nutritive tissue for embryo

dicot that stores food reserves in the endosperm