| A | B |
|---|
| cell wall | the carbohydrate strong layer around a cell membrane in plants, algae and some bacteria |
| chloroplast | is a green organelle found in plant cells (and some others) for photosynthesis |
| chromosomes | threadlike DNA structures found in the nucleus that are only visible during cell division |
| codon | 3-nucleotide sequence on messenger RNA, that codes for a single amino acid |
| control | is the factor in an experiment that scientists purposely keep the same, a standard |
| cell metabolism | is the process that includes all the biochemical reactions within a cell |
| crossing over | the process in which homologous chromosomes exchange portions of their chromatids during meiosis |
| cellular respiration | the process that releases energy by breaking down food in the presence of oxygen, and makes ATP |
| cytoplasm | material inside a cell membrane, but not including the nucleus |
| corrosive | any material which chemically eats away of other materials, like acids and bases |
| conclusion | is a decision reached by reasoning |
| centrifuge | is a piece of equipment that spins a sample to separate substances which vary in density |
| chromatin | is the granular material visible within the nucleus, made of DNA tightly coiled around histones (protein molecules) |
| cytology | the study of cells and their functions |
| cloning | a lineage of genetically identical individuals or cells |
