7th grade- Science- 4th six weeks- Six weeks test review

By smiller18m7v, Feb 2011

Subjects: 8th grade

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7th grade Science 4th six weeks six weeks test review	Study hard
What is the structure of an organism?	The material it is made of and it's shape.
What is the function of an organism?	The job it performs.
What are all living things are composed of?	cells
Why are animal cells harder to see?	They don't have a cell wall.
When were cells discovered?	They were discovered after the microscope.
What is Cell Theory #1?	All cells come from other cells
What is Cell Theory #2?	The cell is the basic unit of all living things.
What is Cell Theory #3?	All organisms are made up of one or more cells.
What did Hooke wrongly think?	He thought that animals do not have cells.
What helps the cell perform functions that sustain life?	Organelles
What contains the cells DNA?	Nucleus
What burns sugar to release energy?	Mitochondria
What separates the cell from the environment, controling the in and out of the cell?	Cell Membrane
What are the parts of an organism from simple to the most complex?	cell tissue organ organ system
Which organisms can perform more jobs than unicellular organisms?	Multicellular Organisms
What carries a cells genetic information?	DNA
These are found ONLY in plant cells:	Chloroplasts
Who was the first person to observe plant cells?	Robert Hooke
Who observes that all living things come from living things?	Virchow
Prophase	Phase 1 - the nucleus dissolves
Metaphase	Phase 2 - Chromatids line up across the middle
Anaphase	Phase 3 - Chromatids move apart
Telophase	Phase 4 - 2 Nucleus' form
Cytokinesis	cytoplasms split

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