Question | Answer |
What is the smallest part of an oxygen atom that has a negative charge? | Electron |
What is at the center of an oxygen atom that has a positive charge? | Proton |
What has roughly the same mass as a proton and no charge? | Neutron |
If an oxygen atom loses an electron what happens to its charge? | It becomes positive |
If an oxygen atom gains an electron what happens to its charge? | It becomes negative |
Why does this happen? | Since there are now more electrons than protons, the negative charge overcomes the positive charge. |
What is a supply of energy for cell processes? (ex: sugars & starches) | Carbohydrates |
What stores and releases energy? (ex: fats and oils) | Lipids |
What are the "building blocks of many structures in organisms? (muscles contain large amounts of this) | Protein |
What are large organic molecules that store important coded information? (ex: DNA & RNA) | Nucleic Acid |
How is water important to humans? | It makes up most of our blood and moves cells through or bodies. |
How is calcium phosphate important to humans? | It strengthens bones. |
How is hydrochloric acid important to humans? | It helps break the food down in our stomachs. |
How is sodium bicarbonate important to humans? | It helps in the digestion of food. |
How are salts important to humans? | They help in sending messages across the nerves. |
What are organisms that eat producers? | Consumers |
Where does respiration take place in a cell? | Mitochondria |
What is an energy-releasing process that takes place in some yeasts and bacteria? | Fermentation |
What is the process that some producers use to make food? | Photosynthesis |
What is an energy-releasing process that takes place in the mitochondria? | Respiration |
What is that gas that is important to photosynthesis? | Carbon dioxide |
What is the green pigment found in chloroplast? | Chlorophyll |