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Terms in this set (32)
6 characteristics of living things
grow and develop
respond to their surroundings
basic unit of sturcture and function in an organism
single-celled; organisms include bacteria the most numerous organisms on Earth.
organisms composed of many cells
Cells are composed of chemicals... the most abundant chemical in cells is ______.
Organisms use ____ for such things as ____ and ____ of damaged parts.
the process of change that occurs during an organisms life to produce a more complex organism
the process of becoming larger.
a change in an organisms surroundings that causes an organism to react.
An organism reacts to a stimulus with a _______- an action or change in behavior.
the production of offspring that are similar to the parents
stable internal conditions
Basic needs for all living things:
The process by which an organism's internal environment is kept stable in spite of changes in the external environment.
lipids and proteins
The two building materials in cells are ____ and ____.
Water can dissolve more chemicals than any other substance
What property of water makes it vital to living things?
a tiny cell structure that carries out a specific function within the cell. They function to produce energy, build and transport needed materials and store and recycle waste.
a rigid layer of nonliving material that surrounds the cells of plants and some other organisms. ***Plant cell only
The outside boundary of a cell, controls what substances come into and out of a cell
the control center of a cell that directs the cell's activities
place inside the nucleus where the ribosomes are made
thin strands floating in the nucleus; material in cells that contains DNA and carries genetic information
region of a cell located inside the cell membrane or between cell membrane and nucleus
a small round cell structure that contains chemicals that break down large food particles into smaller ones.
rod-shaped cell structures that produce most of the energy needed to carry out the cell's functions.
Endoplasmic reticulum (ER)
Cell structure that forms a maze where proteins are carried from one part of a cell to another.
tiny structures in the cytoplasm where proteins are made.
structures in the cell that reserves proteins, packages them and distributes them to other parts of the cell
captures energy from sunlight and uses it to produce food **Plant cell only
water filled sac inside a cell that acts as a storage area
smaller than plant and animal cells, do not have a nucleus, but they have a cell wall and a cell membrane
an organism with cells that contains a nucleus
an organism with cells that does not contain a nucleus.
THIS SET IS OFTEN IN FOLDERS WITH...
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