| A | B |
| Krebs cycle | the second series of steps in aerobic respiration |
| migration | instinctive seasonal movement of animals from one place to another for feeding or reproduction |
| mitosis | nuclear division of somatic (body) cells |
| karyotype | the chromosomal characteristics of a cell or a picture showing an organism’s chromosomes |
| lipids | organic compound responsible for the storage of energy as well as for the insulation of organisms |
| kingdom | the highest category in the taxonomic hierarchy of classification |
| mitochondria | organelles responsible for releasing energy from stored food molecules to power all cellular functions |
| light-dependent reactions | sunlight is transformed into chemical energy by a plant |
| microbiology | the study of the structure and function of microscopic organisms |
| meniscus | the curved top of a column of liquid held in a graduated cylinder |
| meiosis | process of cell division in sex cells |
| microscope | a piece of scientific equipment that uses light and lenses to magnify objects |
| lysosomes | organelles that break down large food particles taken into the cell and organelles that are no longer needed by the cell |
| messenger RNA | RNA assembled based on the order of the nitrogenous bases in the DNA |
| light independent reactions | CO2 is converted to glucose using ATP produced in the light-dependent reactions |