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Chapter 7 part 1
all of chapter 7 vocab
| Question | Answer |
|---|---|
| Cell | Collection of living matter enclosed by a barrier that seperates the cell from its surroundings; basic unit of all forms of life |
| Cell Theory | Idea that all living things are composed of cells, cells are the basic units of structure and function in living things, and new cells are produced from existing cells |
| Nucleus | The center of the atom which contains the protons and neutrons; in cells, structure that contains the cells genetic material (DNA) and contols the cells activities |
| Eukaryote | Organism whose cells contain nuclei |
| Prokaryote | Unicellular organism lacking a nucleus |
| Organelle | Specialized structure that performs important callular functions within a eukaryotic cell |
| Cytoplasm | Msterial inside the cell membrane - not including the nuceus |
| Nuclear Envelope | Layer of two membranes that surrounds the nucleus of a cell |
| Chromatin | Granular material visible within the nucleus; consists of DNA tightly coiled around protiens |
| Chromosome | Threadlike structure within the nucleus containing the genetic information that is passed from one generation of cells to the next |
| Nucleolus | Small, dense region within most muclei in which the assembly of proteins begins |
| Ribosome | Small particle in the cell on which protiens are assembled; made of RNA and protein |
| Endoplasmic Reticulum | Internal membrane system in cells in which lipid components of the cell membrane are assembled and some proteins are modified |
| Golgi Apparatus | Stack of membranes in the cell that modifies, sorts, and packages proteins from the endoplasmic reticulum |
| Lysosome | Cell organelle filled with enzymes needed to break down certain materials in the cell |
| Vacuole | Cell organelle that stores materials such as water, salts, proteins, and carbohydrates |
| Mitochondrion | Cell organelle that converts the chemical energy stored in food into compounds that are more convenient for the cell to use |
| Chloroplast | Organelle found in cells of plants and some other organisms that captures the energy from sunlight and converts it into chemical energy |
| Cytoskeleton | Network of protein filaments within some cells that helps the cell maintain its shape and is involved in many forms of cell movement |
| Centriole | One of two tiny structures located in the cytoplasm of animal cells near the nuclear envelope |
Created by:
skitzens
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