| A | B |
|---|
| The smallest unit that can be alive is called a ______. | cell |
| A ________ is the smallest structure within a cell. | molecule |
| Molecules are made of even smaller units called _______. | atoms |
| What are the names most of the types of molecules in a cell that belong to one of four categories, and are essential for life are called ______, _______, ________, and _______. | carbohydrates, protiens, nucleic acids and lipids (fats) |
| Molecules from carbohydrates, lipids, nuceic acids and protiens are used to.... | build cells, store energy, regulate cell activities and store genetic information. |
| The smaller structures within a cell are essential for ____. | life |
| There are _______ of different molecules in a single cell. | thousands |
| _______ and _______ are important edible carbohydrates. | Sugar and starch |
| There are many other carbohydrates that we cannot eat that were ultimately made from _______. _________. | living organisms (examples: wood and linen are primary carbohydrates) |
| The carbohydrate molecule is composed of ... | carbon, oxygen, and hydrogen atoms. |
| One of the most siplest and common carbohydates is called _________. | glucose |
| Cellulose is found in.... | plant cell walls. |
| _________ is a storage material in plants. | Starch |
| ______ is a storage material in animals. | Glycogen |
| Cellulose, starch and glycogen are important __________ made of thousands of glucose molecules linked together. | carbohydrates |
| Glucose consists of ... | 6 carbon atoms, 12 oxygen atoms and 6 hydrogen atoms |
| ________ are invovled in almost everything that happens in a cell. | Proteins |
| Some proteins are _______ _________ molecules . | food storage (example beans are rich in storage protein) |
| ________ are proteins that fight disease. | Antibodies |
| ___________ of protiens within your muscles cells allows your muscles to move. | Contraction |
| All protiens are made up of smaller molecules called ________ ________. | amino acids |
| There are ________ commonly occuring animo acids. | 20 |
| When ______ amino acids link together to form a chain they are called a protein molecule. | 50 |
| It is _____ nessesary for all 20 types of amino acids to be included in a protein. | not |
| Some amino acids occur ________ in a protien. | repeatedly |
| Long chainlike molecules __________ of______ around themselves and in some cases around other molecules. | coil or fold |
| The amino acid ___________ in a protein is important, especially in enzymes. | arrangement |
| The _________ of a few amino acids will produce a slightly different but usable protein. | altering |
| If the sequence of two amino acids are _________ the protein may not work. | reversed |
| The difference in ________ _________ or ________ _______ may result from the difference in the sequence in a couple of amino acids in one or several proteins. | hair colors or nose shapes |
| Scientists believe that the information a cell needs knows which amino acids to line up in order to build the proper proteins are stored in the cells ______ | DNA |
