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Science Quiz
Quiz Friday January 16
13
Science
5th Grade
01/13/2010

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Term
virus
Definition
A tiny particle that can reproduce only inside the cells of living things.
Term
bacteria
Definition
Tiny one-celled organisms, some of which can cause diseases.
Term
cell
Definition
The basic Unit of a living organism, all living things are made up of cells.
Term
cell membrane
Definition
A thin layer that makes up the outside of the cell and controls what enters and leaves it.
Term
nucleus
Definition
The cell part that controls the cells activities.
Term
cytoplasm
Definition
Jelly like material that fills most of a cell.
Term
cell wall
Definition
A stiff outer layer that helps keep plant cells firm.
Term
chloroplast
Definition
The green cell part in plant cells that traps and uses light energy.
Term
What are the processes of life?
Definition
Get energy, use energy, get rid of wastes, reproduce, grow, respond to change (gugrgr).
Term
What are cells?
Definition
The smallest part of a living organism.
Term
What are tissues, organs, and systems?
Definition
Cells of many shapes and sizes do different jobs in your body. Groups of cells form tissues. Organs are made up of different kind of tissues. Organs working together make up organ systems.
Term
Compare and contrast living and nonliving things
Definition
Living things breathe non living things don't. Living things have cells, non living things don't. Living things grow non living things don't We are both objects.
Term
What are the the differences and alikes of plants cells and animal cells?
Definition
Plant cells have a cell wall and a chloroplast animal cells do not. Plant cells and animal cells both have a nucleus, cell membrane, and a cytoplast.
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