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Cells and Organelles

7-4 Chapter 7 Cells and Organelles

QuestionAnswer
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