Chapter 3 Vocab

What is a cell?

The smallest unit that can perform all the processes necessary for life.
What is a cell membrane?
A 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.

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ivana113

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186162

Card Set

Chapter 3 Vocab

Description

Vocab words for Chapter 3

Updated

2012-11-30T03:09:02Z

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