Transpiration Explained The movement of water through a plants xylem is largely due to the?evaporation of water vapour?from the?leaves?and the?cohesive?and?adhesive?properties exhibited by water mo...
Water & Mineral Ion Transport: Pathways & Mechanisms Within a plant?mineral ions?and?organic compounds?(eg. sucrose) are transported by being?dissolved in water. The?dissolved mineral ions?...
Phloem Sieve Tube Elements & Companion Cells: Structure & Function The function of?phloem?tissue in a plant is to: Transport?organic compounds (assimilates), particularly sucrose, from the ...
Xylem Vessel Elements: Structure & Function The functions of?xylem?tissue in a plant are: Vascular tissue that?transports?dissolved minerals and water around the plant Structural?support Food s...
Xylem & Phloem Distribution Xylem The functions of?xylem?tissue in a plant are: Vascular tissue that carries?dissolved minerals?and?water?up?the plant Structural support Food storage Xylem tiss...
Transverse Sections: Stems, Roots & Leaves Dicotyledonous (dicots) plants Dicotyledonous (dicots) plants have: Seeds that contain two cotyledons (seed leaves) Network of veins Leaves that typic...
Gene Mutations & Their Effect on Polypeptides A?gene mutation?is a change in the sequence of base pairs in a DNA molecule that may result in an altered polypeptide Mutations occur?continuously ...
Template & Non-Template Strands In the?transcription?stage of protein synthesis, the section of the DNA molecule where the gene is located (the gene coding for a particular polypeptide)?unwinds...
Constructing Polypeptides: Transcription & Translation A?gene?is a?sequence of nucleotide bases?in a DNA molecule that?codes for the production of a specific sequence of amino acids, that in tu...
