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Cells and Organelles
7-4 Chapter 7 Cells and Organelles
| Question | Answer |
|---|---|
| what cell parts are found in plant cells only? | cell wall and chloroplasts |
| How are vacuoles different in plant and animal cells? | Plant cells usually have one large vacuole for storing water, Animal cells have multiple smaller ones. |
| Do plant and animal cells have a cell membrane? | Yes. In plant cells the cell membrane is usually pushed up against the cell wall (so it isn't visible). |
| What is an organelle? | A small part of a cell with a specific function (job). |
| Why are cells important? | All living things are made of cells. They carry out the life processes. |
| Who first used the term "cell"? | Robert Hooke |
| ____ is the central portion of the cell, it contains DNA which controls the cells activities | nucleus |
| The flexible boundary of the cell is the _____. It controls which substances enter and leave the cell | cell membrane |
| The _______ is a rigid outer cell boundary that provides support to the plant. | cell wall |
| The jelly-like filler of the cells is called _____. | cytoplasm |
| ____ are small, round, green organelles that capture sunlight for photosynthesis (plants only) are. | chloroplasts |
| Sac-like structures that can store water, food or waste are caleld _____. | vacuoles |
| _____ are oval-shaped structures that break down nutrients for the cell to have energy. | mitochondria |
| _____ are small structures that make proteins. | ribosomes |
| The ____ is made of connected membrane cavities that act as a 'highway' for transport of proteins. | ER (endoplasmic reticulum) |
| Folded pancake-like membranes that package proteins for export out of the cell are the ____. | Golgi bodies |
| ___ are small sacs filled with digestive juices that break down and dispose of worn out cell parts and waste | lysosomes |
| What happens to a cell in salt water? | Water will leave the cell. This is called plasmolysis. You saw this in lab with Elodea, in which the cell membrane pulled away from the cell wall. |
| What does unicellular mean? | one-celled |
| What does multicellular mean? | many-celled |
| What did Leeuwenhoek do? | Discovered micro-organisms, improved the microscope lens to view up to 270x |
| What did Schleiden and Schwann do? | Develop the cell theory |
| Who invented the first microscope? | Zacharias Jensen |
| What did Virchow do? | He had (stolen) evidence showing that cells come from pre-existing cells. |
Created by:
doakes27
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