Buscar
Estás en modo de exploración. debe iniciar sesión para usar MEMORY

   Inicia sesión para empezar

level: Proteins

Questions and Answers List

level questions: Proteins

QuestionAnswer
what does the shape of proteins depend on?the sequence of amino acids that make them up
what are the 5 types of proteins?structural hormonal antibodies receptors enzymes
what is the function of structural proteins?used to give support to celular structures
what is the function of hormonal proteins?chemical messengers that carry specific messages through the bloodstream
what is the function of antibody proteins?defend against pathogens (organisms that cause disease) like bacteria and viruses
what is the function of receptor proteins?allows cells to recognise specific substances
what is an enzyme?a biological catalyst which speeds up chemical reactions and is unchanged in the process
why do we set up control experiments?to ensure any change in results are due to the variable that is altered
what is the molecule on which the enzyme works called?the substrate
where does the substrate join on the surface of the enzyme?the active site
what happens at the end of an enzyme reaction?products are formed
what type of molecule is formed when the enzyme and substrate bond?enzyme-substrate complex
what are the two types of enzyme reactions?degradation synthesis
what happens in a synthesis reaction?small simple molecules are built up into complex ones
what happens in a degradation reaction?large complex molecules are broken down into smaller simple ones
when is an enzyme most active?in its optimum conditions
what to things can enzymes be affected by?temperature and pH
what happens when an enzymes temperature goes over its optimum?it becomes denatured
what happens when an enzymes temperature goes below its optimum?enzyme + substrate move more slowly enzyme is less active
what happens when an enzyme pH goes above it's optimum?the enzyme is denatured
what happens when an enzymes pH goes below its optimum?the enzyme is denatured
what is the general word equation for an enzyme mediated reaction?...
give an example of a synthesis reactionthe speeding up of the buildup of glucose-1-phosphate into the product starch by the enzyme phosphorylase
give an example of a degradation reactionthe speeding up of the breakdown of starch into maltose through the enzyme amylase