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Cell struct & func
| Question | Answer |
|---|---|
| Cell | Basic unit of life |
| Cell Theory | All living things are composed of cells, cells are the basic unit of structure and function in living things, new cells are produced from existing cells |
| Nucleus | A large number of membrane-enclosed structure that contains th ecell's genetic material in the form of DNA |
| Eukaryotes | Cells that contain nuclei |
| Prokaryotes | Cells that don't contain nuclei |
| Organelles | A type of cell structure |
| Cytoplasm | the portion of the cell outside the nucleus |
| Nuclear Envelope | Two membranes that surround the nucleus |
| Chromatin | The granular material you can see in the nucleus |
| Chromosomes | What chromatin condenses to when a cell divides |
| Nucleolus | small dense regions in nuclei |
| Ribosomes | Small particles of RNA and protein found throughout the cytoplasm |
| Endoplasmic reticulum | An internal membrane system |
| Golgi Apparatus | An organelle used to modify and sort and package proteins |
| Lysosomes | Small organells fixe with enzymes |
| Vacuoles | saclike structures that store materials |
| Mitochondria | organelles that convert the chemical energy stored in foos into compounds that are more convenient for the cell to use |
| Chloroplasts | organelles that capture the energy from sunlight and convert it into chemical energy in a proccess called photosynthesis |
| Cytoskeleton | a supporting structure that gives eukaryotic elss their shape and internal organization |
| Centrioles | Help to organize cell division |
| Cell Membrane | A thin flexible barrier that surrounds the cell |
| Cell wall | A strong supporting layer around the membrane |
| Lipid Bilayer | The composition of all cell membranes; a double-layered sheet |
| Consentration | the mass of solute in a given volume of solution, or mass/volume |
| Diffusion | When particles move from a more concentrated area to a less consentrated area |
| Equilibrium | when the concentration of the solute is the same throughout a system |
| osmosis | the diffusion of water though a selectivly permable membrane |
| Isotonic | when the concentration of water and sugar is the same on both sides |
| Hypertonic | the more consentrated sugar solution |
| Hypotonic | the dilute sugar solution |
| Facilitated Diffusion | a proccess where molecules that cannot diffuse across the cell membrane's lipid bilayer on their own move through protein channels instead |
| Active transport | A proccess that uses energy |
| endocytosis | the procceses of taking material into the cell by means of infoldings of the cell membrane |
| Phagocytosis | A process where extensions of cytoplasm surround a particle and package it within a food vacuole |
| Pinocytosis | when tiny pockets form along the cell membrane fill with liquid an d pinch off to form vacuoles |
| Exocytosis | when the membrane of the vacuole surrounding the material fusese with the cell membrane |
| Cell specialization | when cells thoughout an organism develop on different ways to perform different tasks |
| Tisse | A group of similar cells that perform a particular function |
| Organ | formed when tissues come together to carry out a task |
| Organ system | A group of organs that work together to perform a specific function |
Created by:
babalicous
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