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science with whitney
| Question | Answermosot er |
|---|---|
| the invention that helped scientists discover the cell | microscope |
| what is the cell theory | 1 all organisms are made of 1+ cells 2 cells are the basic unit of structure and organization of all organisms 3 cells are made of other cells passing copies of their genetic material to their daughter cells |
| what is a prokaryotic cell | lack internal bound membrane structures and dont have a nucleous |
| what is a eukaryotic cell | has internal membrane bound organelles that are unicellular or multicellular and contain organelles |
| what is the process of maintaining balance inside a cell | homeostasis |
| what is the boundary between the cell and its enviornment | plasma membrane |
| what is a feature of the plasma membrane that keeps some substances out | selective permeability |
| what is the carbohydrate chain on the plasma membrane | it locates other cells from cell to cell |
| what is a transport protein? | selects certain molecules to enter |
| what is a polar head | the outside of a cell that repels water |
| what are nonpolar tails | made of fatty acids and repel water from coming through |
| what make up most of the molecules in the plasma membrane | lipids |
| a molecule that has a gylcerol backbone two fatty acid chains and a phosphatecontaining compund | phospholipid |
| move substancesin and out through the plasma membrane | transport proteins |
| two layers of phospholipids arranged tail to tail | phospholipid bilayer |
| phospholipid sea in which embedded substances float | fluid mosiac model |
| long hollow protein cylinders that form a ridgid skelecton for the cell | microtubules |
| contains most of the cells dna | nucleus |
| structure that produces ribosomes | nucleolus |
| stack of membranes tha packages proteins into sacs called vesicles | golgi apparatus |
| semi fluid itnernal enviornment of the cell | cytoplasm |
| most eukaryotic cells are | plant and animal |
| what describes the plasma membrane as a flexible boundary of a cell | fluid mosiac model |
| ridgid stucture located outside the plasma membrane..and what does it provide | cell wall and protection and support |
| what is the cell wall made of | cellulose |
| what is the nuclear membrane made of | double phospholipid bilayer |
| let rna leave the cell | nuclear pores |
| srands of dna in the nucleus | chormatin |
| membrane of a nucleus | nuclear envelope |
| proteins are built made assembled according to and where | ribosomes and in the nucleolus |
| site of cellular chemical reactions | E.R endoplasmic reticulm |
| when the e.r is rough with rybosomes what happens | photosynthesis |
| when the e.r is smooth with out rybosomes what happens | chemical reaction of lipids |
| WHY IS A CELL HIGLY FOLDED/ PLEATED | TO FIT MORE IN A SMALL PLACE AND TO DO MORE WORK. mOrE iN LeSs SpAcE |
| modifies proteins in vesticles when made | golgi apparatus |
| what does the golgi apparatus look like and do | flattened stack of tubular membranes that sort proteins and ships them in packages to destination |
| what is the size difference of the vacoule in a plant and animal cell | big in plant, small in animal |
| organelles that contain digestive enzymes | lysosomes |
| what is the chloroplasts job in a plant celll | to capture light energy and produce food to store later |
| wha tis the process caled when sugar is turned into energy | cellular respiration |
| what is the mitochondria | transform energy for the cell "powerhouse for the cell" |
| what is the support structure in the cytoplasm adn what is it made of | cytoskeleton adn microtubules |
| what cilia and flagella help | aid in locomotion or feeding |
Created by:
thumperconway
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