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Avtive transport is the transport of molecules against their concentration gradient (that is, from a low concentration to a high concentration). This mechanism requires energy, and so ATP is used up.

1) Tissue composed of undifferentiated totipoten cells in plants 2) Found in roots and shoots 3) Responsible for vertical growth 4) produces PRIMARY phloem and xylem 5) Produces Leaves and Flowers

[Pre-initiation - Specific enzymes catalyse the attachment of amino acids to tRNA, requires ATP] 1) The small ribosomal subunit binds to the 5' end of mRNA and finds the (AUG) start codon 2) Via complementar...

1) ONE Parent 2) SO NO fusion of gametes 3) NO genetic mixing/variation 4) Offspring is genotypically the SAME

1) Within a population there is variation among individuals 2) Some of these individuals will be better suited to survive in their environment 3) These individuals are more likely to survive and as a result ...