Chapter 3 Vocab
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Chapter 3 Vocab
science chapter three vocab
Vocab words for Chapter 3
What is a cell?
The smallest unit that can perform all the processes necessary for life.
What is a cell membrane?
protective layer that covers the cell’s surface and acts as a barrier.
What is an organelle?
Structures that perform specific functions within the cell
What is a nucleus?
Where DNA is enclosed in a cell.
What is a prokaryote?
Single-celled organisms that do not have a nucleus or membrane-bound organelles.
What is a eukaryote?
Organism made of eukaryotic cells.
What is the cell theory?
•All organisms are made of one or more cells.
•The cell is the basic unit of all living things.
•All cells come from existing cells.
What is a ribosome?
The smallest organelles that make proteins.
What is a flagellum?
Helps bacteria move.
What is a cell wall?
A rigid structure that gives support to a cell.
What is an endoplasmic reticulum?
A system of folded membranes in which proteins, lipids, and other materials are made.
What is a mitochondrion?
The organelle in which sugar is broken down to produce energy.
What is the Golgi complex?
The organelle that packages and distributes proteins.
What is a vesicle?
A small sac that surrounds material to be moved into or out of a cell.
What is a lysosome?
Organelles that contain digetstive enzymes.
What is a cytoskeleton?
A web of proteins in the cytoplasm
What is a cytoplasm?
Fluid inside a cell and almost all of its contents.
What is a chloroplast?
Organelles in plant and algae cells in which photosynthesis takes place.
What is a vacuole?
Organelles that store water and other liquids.
What is a nucleolus?
Where a cell begins to make its ribosomes.
What is tissue?
A group of cells that work together to perform a specific job.
What is an organ?
A structure that is made up of two or more tissues working together to perform a specific function.
What is an organ system?
A group of organs working together to perform a particular function.
What is an organism?
Anything that can perform life processes by itself.
What is a structure?
The arrangement of parts in an organism.
What is a function?
The job an organism's structure does.