Download Chapter 7 Pre-Test Answer Key True or False 1. T 2. F

Chapter 7 Pre-Test Answer Key
True or False
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2.
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8.
T
F- one or more cells
F- after
T
T
T
F-plant cells
F- plant cell
Completion
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Cells
Cork
Simple microscope
Cell theory
Cell membrane
Eukaryotic
Bacteria
Stain
DNA
Cytoplasm
Mitochondria
Ribosomes
Nucleus
Organelles
Short Answer
23. All living things are made of cells.
Cells are the basic unit of structure and function in living things.
Cells only come from pre-existing cells.
Cells contain the genetic information for all life functions that is passed onto to future
generations of cells.
24. The diagram shows a prokaryotic cell. It has no nucleus- only DNA in the middle.
25. Muscle cells have more mitochondria than skin cells because muscle cells need a lot of energy.
Mitochondria produces the energy they need.
26. Schleiden and Schwann discovered plant and animal cells.
Van Leeuwenhoek discovered protists.
Virchow saw that cells only come from other cells.
27. Prokaryotic cells have no nucleus- only DNA bunched in their cells. Bacteria are prokaryotic
cells. Eukaryotic cells have membrane-covered organelles and a true nucleus. The DNA is found
in the nucleus.
28. Three differences between plant and animal cells:
Plant cells have a cell wall.
Plant cells have a large central vacuole.
Plant cells have chloroplasts.
Animal cells have centrioles- plant cells don’t. (These play a role during cell division.)
29. All cells have a cell membrane, DNA and organelles in cytoplasm.