7-4 Chapter 7 Cells and Organelles
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| what cell parts are found in plant cells only? | cell wall and chloroplasts
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| 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.
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| 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).
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| What is an organelle? | A small part of a cell with a specific function (job).
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| Why are cells important? | All living things are made of cells. They carry out the life processes.
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| Who first used the term "cell"? | Robert Hooke
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| ____ is the central portion of the cell, it contains DNA which controls the cells activities | nucleus
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| The flexible boundary of the cell is the _____. It controls which substances enter and leave the cell | cell membrane
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| The _______ is a rigid outer cell boundary that provides support to the plant. | cell wall
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| The jelly-like filler of the cells is called _____. | cytoplasm
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| ____ are small, round, green organelles that capture sunlight for photosynthesis (plants only) are. | chloroplasts
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| Sac-like structures that can store water, food or waste are caleld _____. | vacuoles
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| _____ are oval-shaped structures that break down nutrients for the cell to have energy. | mitochondria
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| _____ are small structures that make proteins. | ribosomes
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| The ____ is made of connected membrane cavities that act as a 'highway' for transport of proteins. | ER (endoplasmic reticulum)
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| Folded pancake-like membranes that package proteins for export out of the cell are the ____. | Golgi bodies
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| ___ are small sacs filled with digestive juices that break down and dispose of worn out cell parts and waste | lysosomes
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| 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.
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| What does unicellular mean? | one-celled
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| What does multicellular mean? | many-celled
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| What did Leeuwenhoek do? | Discovered micro-organisms, improved the microscope lens to view up to 270x
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| What did Schleiden and Schwann do? | Develop the cell theory
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| Who invented the first microscope? | Zacharias Jensen
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| What did Virchow do? | He had (stolen) evidence showing that cells come from pre-existing cells.
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