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. |