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Science Ch 2 Test
| Question | Answer |
|---|---|
| Tiny organelles inside cells that are involved in releasing energy from food - cellular respiration | Mitochondria |
| Molecules that are the building blocks of protein | amino acids |
| A molecule that organisms can use to release energy, and that is made of carbon, hydrogen, and oxygen atoms | glucose |
| A molecule that organisms get from the air or water around them and use to release energy | oxygen |
| A set of interacting parts forming a complex whole | system |
| The body system that takes in food and breaks it down | digestive system |
| the body system that transports molecules to and from all cells of he body | circulatory system |
| when cells aren't getting the molecules they need | medical condition |
| A molecule made of carbon and oxygen atoms | carbon dioxide |
| A representation of an object, system, or process that is simpler than the real thing | model |
| The sim is a ______ model | computer |
| __________ models are smaller and simpler representations of the thing being studied | physical |
| Cells can only use molecules that are _______ enough to enter the cell | small |
| In a functioning human body, body ___________ work together to deliver glucose, ox,ygen, and amino acid molecules to cells | systems |
| Systems can work together to form a more _____________ system. | complex |
| The __________ system brings oxygen molecules from the air and releases carbon dioxide. | Respiratory |
| The ___________ system brings in food and breaks it down into smaller molecules. | Digestive |
| The ________ system transports glucose, ox,ygen, and amino acid molecules to all cells. | Circulatory |
| Scientists use _______________ to understand the processes that happen inside the body. | models |
| Healthy bodies get molecules from ___________ and ___________. | food, air |
| The _______________ enter the cells of the body and provide everything the cells need to be healthy. | molecules |
| Healthy cells make up healthy organs and healthy organs work together in ___________ to keep the body breathing, moving, thinking, and releasing energy | systems |
| The relationship between molecules and _________________ is that tiny molecules can actually make a person feel better or worse. | health |
| Somtimues people can get sick because their __________ are not getting the molecules they need. | cells |
| Doctors often look for __________________ when a patient's sysmptoms are not caused by a virus or bacteria. | medical conditions |
| People can often take ___________ to make sure their bodies get the molecules they need. Medical conditions can be managed with these. | medicine |
| A proposed answer to a question about the world | claim |
| A medical condition where glucose can not get to the circulatory system because the body can't make enough insulin. | diabetes |
| A medical condition where your body has difficulty digesting food because the pancreas is injured. | Pancreas Injury |
| A medical condition where the body doesn't have enough red blood cells to carry oxygen around the circulatory system. | Anemia |
| A medical condition where the lung tubes swell up so oxygen can not get to the circulatory system and cells. | Asthma |
| Large molecules made of amino acids | proteins |
| Large molecules made of glucose | starch |
| The body's use of glucose, oxygen, and amino acids for energy and growth | Metabolism |
| A group of atoms joined together in a particular way | molecule |
| Chemical reaction that releases energy to power everything the body does | cellular respiration |
| Process in which reactants are converted to products | Chemical Reaction |
| The ability to make things move or change | energy |
| The tiny structure that makes up all living things, the smallest unit able to perform functions | Cell |
| What do you get from food and air that fuels the body? | Oxygen, glucose, and amino acids |
| What type of variable is manipulated or varied by a researcher? | Independent |
| Breathing air: taking in oxygen to the lungs and releasing carbon dioxide through the mouth and nose | Respiration |
| Oxygen + glucose ---- Water+ Carbon Dioxide + Energy | Cellular Respiration |
| Water + Carbon Dioxide +Sun (energy)--- Oxygen + Glucose | Photosynthesis |
| Where does photosynthesis take place? | Chloroplasts |