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Biology Chapter 1
| Question | Answer |
|---|---|
| cell membrane | allows materials to go in and out. Holds cells together |
| Mitochondria | power supply |
| Nucleus | controls all activities. DNA is on the Nucleus |
| DNA stands for: | Deoxyrobonucleacacid |
| the things that are make up cells are called | organelles |
| Nucleolus | located inside the nucleus, provides ribosomes. Critical in protein synthesis |
| Ribosomes | Used for protein synthesis |
| Rough endoplasmic reticulum | holds ribosomes |
| smooth endoplasmic reticulum | does not hold ribosomes |
| Lysosomes | waste disposal. When cells produce waste lysosomes get rid of it |
| Vacuole | involved in digestion, some hold water, some hold food. Cellular digestion occurs hear |
| Golgi | looks like a stack of pennies. packages macromolecules for transport elsewhere in the cell |
| The order in which things are made up in your body is? | Organelles, cells, tissues, organs, organ systems, organism |
| Assembly cells | assembly cells make hormones/enzymes in your body that speed up reactions in your body |
| Movement cells | Cells for movement, they create movement |
| Absorbing cells | Absorbs in the respiratory, digestive/ absorbs nutrients |
| Tissues | Tissues are groups of the same kind of cells that perform the same job and function |
| The four kinds of tissue are: | muscle tissue, nerve tissue, epithelial tissue, and connective tissue |
| Muscle tissue | allows movement skeletal (striated/striped) attached to bone smooth muscle tissue (lining on organs and cavitites) ex: stomach, lungs, blood vessels Cardiac: heart, entire heart is a muscle |
| Connective tissue | bones, ligaments, tendons. Pads and connects Bone-moves and supports body, supports muscle's shape and structure LBB- ligaments connect bone to bone to blood TBM- tendons connect bones to muscle |
| Osteocyte's are: | bone cells |
| Blood | . transports O2, nutrients, and CO2 throughout body. Also gets waste away from cells |
| Fat | acts as insulation, protection, and long term energy |
| Epithelial tissue | skin and outer lining. protection. Helps maintain body temperature and transport materials |
| Homeostasis | maintains a balance in your body between internal and external environments. Ex: You drink water to cool you off after sweating during exercise, since water helps homeostasis. Homeostasis cools your body down to its regular temperature. |
| Nerve tissue | Acts as a messenger system. Sends messages in nerves. Sends messages between your body and your brain. Always passes through spinal cord |
| Organs | organs are different tissues with different function but come together to do one job. ex heart liver stomach |
| Organ systems | different organs with different functions come together to perform one major task or jobs |
| Skeletal system | made up of bones and bone cells. Supports and protects you, allows posture, allows your muscles to move. Also makes blood. |
Created by:
RAGO
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