5 Written questions
5 Matching questions
- Semipermeable membrane
- a A membrane that allows some molecules to pass through but does not allow other molecules to pass through.
- b A measurement of how much solute exists within a certain volume of solvent.
- c Breaking down complex molecules by the chemical addition of water.
- d Two different molecules that have the same chemical formula.
- e The random motion of molecules from an area of high concentration to an area of low concentration.
5 Multiple choice questions
- The tendency of a solvent to travel across a semipermeable membrane into areas of higher solute concentration.
- Chemicals that result from atoms linking together.
- A chemical reaction in which molecules combine by removing water.
- The process by which living organisms produce larger molecules from smaller ones.
- A lipid made from fatty acids that have no double bonds between carbon atoms.
5 True/False questions
Catalyst → A substance that alters the speed of a chemical reaction but is not used up in the process.
Unsaturated fat → A lipid made from fatty acids that have at least one double bond between carbon atoms.
Polysaccharides → Simple carbohydrates that contain 3 to 10 carbon atoms.
Disaccharides → Carbohydrates that are made up of two monosaccharides.
Hydrogen bond → Lacking any affinity to water.