Some sugar is added to cold water in a beaker. After some time, all the sugar dissolves and spreads throughout the water.
(a)(¡) Name the process that occurs which causes the sugar to spread throughout the water.
(ii) State two ways to make the sugar dissolve more quickly.
(b) Pure water can be obtained from the sugar solution using this apparatus.
Name the process used to obtain pure water from the sugar solution.
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The use of dna as evidence in criminal investigations became possible because of the

You have a solution that contains phospholipid vesicles in a test tube. these vesicles have phospholipid bilayers, but do not contain any membrane transporters. you add a number of different molecules to the solution, and wait a period of time for them to equilibrate. if you could measure the concentration of each molecule, for which of the following would you expect to measure equal concentrations inside and outside of the vesicles? assume for this question that the overall osmolarity inside and outside the vesicles is the same (that is, there is no appreciable diffusion of water across the membrane). (select two answers) an amino acid with a hydrophobic side-chain a small non-polar molecule a negatively charged ion a small polar molecule a small lipid hormone

Which statements describe resources? one of the factors people use when deciding where they will live is the availability of resources. renewable resources have little value for people. resources are unevenly distributed throughout the world. energy is the world resource which has the highest use. the use of nonrenewable resources has decreased in recent history. the use of resources is evenly distributed throughout the world. the world's oil supply will last for the next forty years if its use continues as expected.