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Unit 3 cellssss
Cells
| Question | Answer |
|---|---|
| Cells | Basic Unit of Life |
| Cell Theory | Fundamental concept of biology |
| Nucleus | Large Membrane-enclose structure that contains the cells genteic material in the form of DNA |
| Eukaryotes | Cells that contain nuclei |
| Prokaryotes | Cells that dont contain nuclei |
| Organelles | Little Organs |
| Cytoplasm | Portion of the cell outside the nuceus |
| Nuclear Envelope | Composed of two membranes |
| Chromatin | Granular material you can see in the nucleus. |
| Chromosomes | When chromatin condenses. |
| Nucleolus | Where assembly of ribosomes begins |
| Ribosomes | small particles of RNA and protein found throughout the cytoplasm |
| Endoplasmic Reticulum | Where lipid components of the cell membrane are assembled |
| Golgi Apparatus | Proteins move next to this organelle |
| Lysosomes | Small organelles filled with enzymes. |
| Vacuoles | saclike structures |
| mitochondria | organelles that convert the chemical energy stored in food into compunds that are more convienient for the cell to use. |
| chloroplasts | organelles that capture the energy from sunlight and convert it into chemical energy in a process called photosynthesis |
| cytoskeleton | Supporting sturcture of Eukaryotes. |
| Centrioles | help organize cell divisions |
| Cell membrane | Thin, flexible barrier |
| Cell Wall | Strong supporting layer around the membrane |
| Lipid Bilayer | composition of nearly all cell membranes is a double-layered sheet |
| Concentration | solution is the mass of solute in a given volume of solution |
| Diffusion | Particles tend to move from an area where they are more concentrated to a place they are less concentrated. |
| Equilibrium | Concentration of the solute is the same throughout a system |
| Osmosis | Diffusion of water through a selectively permeable membrane. |
| Isotonic | Same Strength |
| Hypertonic | Above Strength |
| Hypotonic | Below Strength |
| Facilitated Diffusion | Molecules cannot diffuse across the cell membrane |
| Active Transport | When cells move against concentration |
| Endocytosis | Process of taking material into the cell by means of infoldings. |
| Phagocytosis | Cell eating |
| Pinocytosis | Cells take up liquid from the surrounding environment. |
| Exocytosis | Membrane of vacuole surrounding the material fuses with the cell membrane |
| Cell Specialization | Cells throughout an organism can develop in different ways to perform different tasks. |
| Tissue | Group of similar cells that perform a particular function. |
| Organ | Many groups of tissues working together. |
| Organ system | A group of organs that work together to perform a specific function. |
Created by:
danielwolski
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