13.6 Tissue Fluid Fluid that surrounds the cells of the body, it supplies nutrients to the cells and removes waste products 13.6 Ultrafiltration Filtration assisted by pressure 13.7 Apoplastic Route through the cell walls by which water and Pathway minerals are transported into the plant 13.7 Symplastic Route through the cytoplasm and plasmodesmata of Pathway plant cells by which water and minerals are transported 13.8 Cohesion Water molecules stick together by hydrogen bonds 13.8 Cohesion-Tension Transpiration pull on the water puts the xylem under pressure 13.9 Transpiration Evaporation of water from a plant 13.10 Xerophytes Plants adapted to living in dry conditions Chapter 14 Classification – Book Ref Key Term Definition 14.1 Species A group of similar organisms that can breed together to produce fertile offspring 14.1 Classification Grouping of organisms 14.1 Taxonomy Theory and practice of biological classification 14.1 Phylogeny The evolutionary relationships between organisms Chapter 15 Evidence for Relationships Between Organisms – Book Ref Key Term Definition 15.1 DNA A technique used to determine the similarities between Hybridisation the DNA of different organisms 15.1 Hybridisation Double strands form with one strand from each species, closely related organisms will share complementary bases 15.2 Courtship Signals and displays between males and females of the Behaviour same species to enable successful mating to occur Chapter 16 Adaptation and Selection – Book Ref Key Term Definition 16.1 Adaptation Organisms adjust to suit the changing environment where they live 16.1 Mutations A change in the base sequence of DNA
13.6 Tissue Fluid Fluid that surrounds the cells of the body, it supplies nutrients to the cells and removes waste products 13.6 Ultrafiltration Filtration assisted by pressure 13.7 Apoplastic Pathway Route through the cell walls by which water and minerals are transported into the plant 13.7 Symplastic Pathway Route through the cytoplasm and plasmodesmata of plant cells by which water and minerals are transported 13.8 Cohesion Water molecules stick together by hydrogen bonds 13.8 Cohesion-Tension Transpiration pull on the water puts the xylem under pressure 13.9 Transpiration Evaporation of water from a plant 13.10 Xerophytes Plants adapted to living in dry conditions Chapter 14 – Classification Book Ref Key Term Definition 14.1 Species A group of similar organisms that can breed together to produce fertile offspring 14.1 Classification Grouping of organisms 14.1 Taxonomy Theory and practice of biological classification 14.1 Phylogeny The evolutionary relationships between organisms Chapter 15 – Evidence for Relationships Between Organisms Book Ref Key Term Definition 15.1 DNA Hybridisation A technique used to determine the similarities between the DNA of different organisms 15.1 Hybridisation Double strands form with one strand from each species, closely related organisms will share complementary bases 15.2 Courtship Behaviour Signals and displays between males and females of the same species to enable successful mating to occur Chapter 16 – Adaptation and Selection Book Ref Key Term Definition 16.1 Adaptation Organisms adjust to suit the changing environment where they live 16.1 Mutations A change in the base sequence of DNA
as_biology_unit_2_key_terms_and_definitions.docx