Chapter 7 Crossword

The movement of molecules from a region in which they are highly concentrated to a region in which they are less concentrated.
When comparing two solutions, the solution with the lesser concentration of solutes.
Organism whose cells contain a nucleus that holds the DNA
Property of biological membranes that allows some substances to pass across it while others cannot.
Pressure that must be applied to prevent osmotic movement across a selectively permeable membrane
Diffusion of water through a selectively permeable membrane
Can be classified as smooth or rough. Produces proteins and lipids.
Uses lenses to magnify the image of an object by focusing light or electrons.
Controls what enters and leaves the cell.
Stores water, salt, proteins, and carbohydrates
Site of protein synthesis. Found in cytoplasm and on the Rough ER.
A group of tissues that work together to perform closely related functions.
A group of similar cells that perform a particular function.
Process of diffusion in which molecules pass across the membrane through the cell membrane protein channels.
Site of photosynthesis and contains chlorophyll
States that all living things are composed of cells; cells are the basic unit of structure and function in living things.
Powerhouse of the cell and site of cellular respiration.
Relatively constant internal physical and chemical conditions that organisms maintain.
Basic unit of all forms of life
When the concentration of two solutions is the same
Flexible double-layered sheet that makes up the cell membrane and and forms a barrier between the cell and its surroundings.
When comparing two solutions, the solution with the greater concentration of solutes.
Breaks down large molecules into simpler molecules that can be re-used by the cell.
Help organize cell division so that cells replicate properly.
Unicellular organism that lacks a nucleus. DNA is not contained inside of a nucleus.
Water channel protein in the cell membrane.
A group of organs that work together to perform a specific function.
Gives the cell its shape and internal organization and is involved in movement.
Short hairlike projection that produces movement.
The movement of ions or molecules across a cellular membrane from a lower to a higher concentration, requiring the consumption of energy.