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Cell Parts #1
Cell Parts #2
Moving Cellular Materials
Chemistry of Life
Energy for Life
100
A tough, rigid outer covering that protects the cell and gives it shape.
What is a cell wall?
100
A group of similar cells that work together to do one job.
What is a tissue?
100
The random movement of molecules from an area where there is relatively more of them into an area where there is relatively fewer of them.
What is diffusion?
100
A combination of substances in which individual substances retain their own properties.
What is mixture?
100
Chemical reactions that break down food molecules into simpler substances and release their stored energy.
What is respiration?
200
It directs all cell activities and is separated from the cytoplasm by a membrane.
What is the nucleus?
200
A structure made up of two or more different types of tissues that work together.
What is an organ?
200
When molecules of one substance are spread evenly throughout another substance.
What is equilibrium?
200
Certain proteins that regulate nearly all chemical reactions in cells.
What is an enzyme?
200
The total of all chemical reactions in an organism.
What is metabolism?
300
Organelles that use light energy to make sugar from carbon dioxide and water.
What is a chloroplast?
300
Smalls structures on which cells make their own proteins.
What is a ribosome?
300
The diffusion of water through a cell membrane.
What is osmosis?
300
Compounds that always contain carbon and hydrogen and usually are associated with living things.
What are organic compounds?
300
When cells do not have enough oxygen for respiration.
What is fermentation?
400
Organelles where energy is released from breaking down food into carbon dioxide and water.
What is mitochondria?
400
Stacked, flattened membranes that sort proteins and other cellular substances and package them into membrane-bound structures called vesicles.
What are Golgi bodies?
400
The movement of substance through the cell membrane without the input of energy.
What is passive transport?
400
Made from elements other than carbon and they contain fewer atoms than organic molecules.
What are inorganic compounds?
400
A process that produces light energy to make sugars which can be used as food.
What is photosynthesis?
500
Cells without membrane-bound structures.
What is a prokaryotic cell?
500
A series of folded membranes in which materials can be processed and moved around inside of the cell.
What is an endoplasmic reticulum?
500
The process of taking substances into a cell by surrounding it with the cell membrane.
What is endocytosis?
500
When something is made up of only one kind of atom.
What is an element?
500
The food molecules most easily broken down by cells.
What are carbohydrates?