| A | B |
|---|
| biology | the study of life |
| ionic bonds | formed when electrons are transferred |
| 3 subatomic particles | electrons,protons, and neutrons |
| factor that is purposefully changed in an experiment | independent variable |
| two hydrogen molecules and one oxygen molecule | a water molecule |
| formed as a result of sharing an electron pair | covalent bond |
| 5 unique properties of water | high heat of vaporization, polarity, bonding angle, adhesiveness, cohesiveness |
| the most abundant compound in most living things | water |
| proteins | help fight disease, build tissues, control the rate of reactions and regulate cell processes |
| monosaccharide | carbohydrate monomer |
| nucleotide | nucleic acid monomer |
| amino acid | protein monomer |
| 0-6 on the pH scale | acid |
| neutral on the pH scale | 7 |
| adhesion | the tendency to stick to other substances |
| cohesions | the tendency to stick to the same substances |
| main storage in animal cells | glycogen |
| main storage in plant cells | plant starch |
| compound | two or more different atoms are combined in definite proportions |
| end in ase | enzymes |
| compounds that contain carbon | organic |
| enzymes | affect the speed of the reaction in living things |
| catalyst | increases the speed of a reaction |
| activation energy | energy needed to get a reaction started |
| endothermic reaction | absorbs energy |
| exothermic reaction | releases energy |
| monomer | smallest building block of a molecule |
| inference | explanation based on observations |
| qualitative data | observations that are not easily measured |
| quantitative data | observations based on measurements |
| hypothesis | testable prediction |
| neutron | neutral subatomic particle |
| electron | negative subatomic particle |
| proton | positive subatomic particle |
| isotope | atoms of the same element with different numbers of neutrons but the same umber of protons and electrons |
| Explain why isotopes have the same chemical properties | they have the same number of electrons and protons |
| Chemical reactions always involve | the breaking or forming of bonds |
| Organic compound that is the main source of energy for living things | carbohydrates |
| Organic compound that stores genetic information | nucleic acid |
| High heat of vaporization | property of water that helps regulate temperature |
| Bonding angle | property of water that causes water to be less dense in its solid form |
