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  • Biology Factsheet: 128. Active Transport in Humans

    Biology Factsheet: 128. Active Transport in Humans

    Active transport is the movement of molecules or ions across a differentially permeable membrane up a concentration or electrochemical gradient. Active transport is not passive, it requires ATP. In fa...

    Price £3.00more info
  • Biology Factsheet: 129. ATP  What it is, what it does

    Biology Factsheet: 129. ATP What it is, what it does

    ATP is a nucleotide composed of adenine ( a nitrogenous base), ribose (the  5-carbon or pentose sugar found in RNA) and three phosphate groups. ...

    Price £3.00more info
  • Biology Factsheet: 130. Investigating Catalase

    Biology Factsheet: 130. Investigating Catalase

    This Factsheet  • Outlines the importance of catalase;  • Describes how catalase can be used to investigate the general properties  of enzymes;  • Analyses commo...

    Price £3.00more info
  • Biology Factsheet: 131. Niches

    Biology Factsheet: 131. Niches

    Students often lose easy marks in ecology because definitions aren’t learned  properly. Perhaps this is because terms such as habitat and community are  in everyday use and students ...

    Price £3.00more info
  • Biology Factsheet: 132. Phloem

    Biology Factsheet: 132. Phloem

    This Factsheet describes the structure and function of phloem and  concentrates on typical exam questions such as:  1. Labelling xylem and phloem in ts root sections  2. Describing t...

    Price £3.00more info
  • Biology Factsheet: 133. Comparing Chemical Communication in Plants and Animals

    Biology Factsheet: 133. Comparing Chemical Communication in Plants and Animals

    Animals have two control systems for regulating body functions and behaviour. These are the nervous system and the endocrine system. The  endocrine system uses chemical communication and operate...

    Price £3.00more info
  •  Biology Factsheet: 134. Cystic Fibrosis

    Biology Factsheet: 134. Cystic Fibrosis

      Cystic fibrosis(CF) is a common genetic disorder that occurs worldwide. It is the commonest inherited disease among white North Americans and Northern Europeans ...

    Price £3.00more info
  • Biology Factsheet: 135. Transport Across the Placenta

    Biology Factsheet: 135. Transport Across the Placenta

    The placenta is the life support system of the mammalian fetus within the  uterus, prior to birth. It enables the blood capillary systems (and some  surrounding tissues) of the mother and ...

    Price £3.00more info
  • Biology Factsheet: 136. Practical Investigations for Photosynthesis

    Biology Factsheet: 136. Practical Investigations for Photosynthesis

    Photosynthesis is a favourite topic for:  1. Coursework and in-class practicals  2. Exam questions – in the exam, photosynthesis investigations can be  used to test your unders...

    Price £3.00more info
  • Biology Factsheet: 137. GM Farm Scale Evaluation Trials

    Biology Factsheet: 137. GM Farm Scale Evaluation Trials

    In October 2003 the government announced the long-awaited results of its  controversial farm scale investigations into whether GM crops were  harmless or harmful for the environment. These...

    Price £3.00more info
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