Shared Flashcard Set

Details

End of the First Quarter Level 3 - 5
Diffusion, osmosis, characteristics of livings things, water, pH
24
Biology
9th Grade
10/26/2011

Additional Biology Flashcards

 


 

Cards

Term
Diffusion
Definition
The movement of materials from a high concentration to a low concentration.
Term
Osmosis
Definition
The movement of water from a high concentration to a low concentration.
Term
Hypertonic
Definition
A solution where there are more water molecules on the inside of the cell, so the water moves out of the cell.
Term
Hypotonic
Definition
A solution where there are more water molecules on the outside of the cell, so the water moves into the cell.
Term
Isotonic
Definition
When the molecules of water are the same on the inside of the cell and the outside of the cell.
Term
Cytoplasm
Definition
The part of the cell inside the cell membrane where many chemical reactions happen.
Term
Semi-permeable or selectively permeable
Definition
When a cell membrane only allows some things to go through it and keeps other things out.
Term
Prokaryote
Definition
A cell that does not a its DNA in a nucleus. (Does not have a nucleus)
Term
Eukaryote
Definition
A cell that has its DNA in a nucleus (has a nucleus).
Term
Solute
Definition
Any substance that is being dissolved
Term
Solvent
Definition
Any substance that is dissolving something.
Term
Solution
Definition
A mixture of things. A mixture of the solute and the solvent.
Term
Cell
Definition
The basic unit of structure and function in an organism.
Term
Cell membrane
Definition
The outside part of the cell that controls what comes into the cell and what goes out of the cell.
Term
Phospholipid
Definition
The part of the cell membrane that keeps things out. It is made of fat.
Term
Protein
Definition
The part of the cell membrane that allows things to come in. Each protein has a channel that lets things flow through it.
Term
Carbohydrate chain
Definition
The part of the cell membrane that acts as a flag to tell molecules where to enter.
Term
Characteristics of living things
Definition
The basic characteristics that all living things have. If even one is missing, the organism is not alive.
Term
Photosynthesis
Definition
The process where plants use sunlight, carbon dioxide and water to make sugar and oxygen.
Term
Chloroplast
Definition
The organelle in the plant cell where photosynthesis happens.
Term
Cellular respiration
Definition
The process where food (sugar) is broken down into energy.
Term
pH
Definition
The measurement of potential hydrogens that tells if a substance is an acid or a base.
Term
Acid
Definition
Any substance that has a lot of H+ ions or a pH of 0-6.
Term
Base
Definition
Any substance that has only a few H+ ions or a pH of 8-14.
Supporting users have an ad free experience!