chpt 6 study
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| what do enzymes lower? | they lower the energy it takes to start reaction ( ACTIVATION SITE)
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| what is a substrate? | molecules being changed.
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| what is the active site? | place on the enzyme where it attacks to the substrate.
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| what is a nucleic acid? | DNA and RNA
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| what do nucleic acids have? | they have long chains of nucleotides.
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| what do nucleotides consist of ? | they consist of sugar, phosphate, nitrogen base.
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| What is important to about DNA? | DNA is the instructions to make all of an organisms protein.
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| what type of ions do acids release? | releases H+ ions.
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| what type of ions do bases release? | releases OH- ions
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| what is the main role of a buffer? | they are chemicals that some cells release that helps keep pH in specific range.
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| what is the range buffers keep for most bodily fluids? | 6.5 to 7.5 for most bodily fluids.
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| what is a property of water ? | its polar, stabilizes body temp. ,and fluid medium.
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| what is polar? | good at dissolving substances.
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| what is fluid medium? | allows molecules to flow.
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| In an Ion if the e- and p+ are unequal what happens to the atom? | the atom will have an overall charge .
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| what is an element? | substances that can't be seperated into simpler substances.
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| what are important elements? | carbon, hydrogen, oxygen, nitrogen.
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| what are saturated fats ? | single bonds only.
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| what type of fats are they? | animal fats which means they are harder to break down.
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| what are saturated fats ? | they are double bonds and are in plants.
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| what are the functions in lipids? | they provide insulation,protective coating, energy storage,and the main component of cell membrane. they are also non-polar.
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| what can you call the lipid backbone? | glycerol.
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| what can you call lipid tails? | fatty acids.
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| what happens if you want to build polymers? | you remove water which you do by when you link together two molecules which is called condensation.
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| what happens if you want to break down polymers ? | you add water which breaks bonds between molecules which is called hydrolysis.
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| what is starch? | long- term energy for plants and we use it for energy.
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| what is glycogen? | long-term energy source for mammals and is stored in the liver.
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| what is cellulose? | its a cell wall and structural support for plants.
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| what are pigments in a protein? | they give your eyes,hair,skin and blood color.
they also protect you from the sun.
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| what are functions in a protein? | they have antibodies,tissue and muscle structure and hormones.
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| what are proteins? | long chain of amino acids
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| what do AA's cause? | the order of AA's cause the protein to fold in a specific shape. it also determines what it does.
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