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33 Cards in this Set
- Front
- Back
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The organismal theory teaches that |
The basic unit of life is the organism |
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A light or Optical microscope most commonly used is called a |
Brightfield microscope |
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Match the following terms and definitions |
Mitochondrion - Powerhouse of the cell Ribosomes - protein producers Golgi apparatus - shipping and packaging Center Plastids - food and pigment storage Endoplasmic reticulum - Transportation Highway of the cell Lysosomes- enzyme producer for digestion |
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The _________ passively diffuses oxygen and carbon dioxide in and out of the cell |
Plasma membrane |
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The idea that the basic unit of life is the cell is called the |
Cell theory |
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If an animal cell shrinks, it was probably placed in a __________ |
Hypertonic solution |
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Moving substances from a lower concentration to a higher concentration requires ___________ |
Active transport |
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A membrane that allows only some materials move in and out the cell is |
Semipermeable |
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Osmosis is the diffusion process that moves ___________ through the membrane from higher to lower concentration |
Water |
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A solution should be ______ in order to prevent water gain or water loss in a cell |
Isotonic |
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In order for life to survive, bodies or cells must adjust to environmental conditions. This is called _____________ |
Homeostasis |
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Which of the following are not characteristics of the cell wall |
Hydrophilic and hydrophobic structures, found in cells of fungi and algae, double-layered membrane |
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Which of the following are not characteristics of the plasma membrane |
Cellulose, increased strength to the cell |
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The _________ microscope uses multiple glass lenses to help distinguish details of thickness |
Optical |
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Which scientist discovered cells by observing cork with a homemade microscope |
Robert Hooke |
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An electron microscope would be used if |
A sample was too small to be seen with an optical microscope |
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Match the following terms |
Plasma membrane - semipermeable allows certain substances to pass through Nucleus - controls activities of the cell Vacuole - storage structure Cytoplasm - thick fluid between plasma membrane and nucleus Organism - functional plant or animal Cell wall - fibrous material giving support to the plant Nucleolus - produces ribosomal nucleic acid (rna) |
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The cell that does not have a cell wall is |
Human cheek cell |
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Biologists schleiden and Schwann would state that |
All cells come from other cells, the smallest living unit is the cell, all living things are made up of a cell or cells |
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Plant cells have which of the following characteristics |
Cell walls and plasma membranes, large hypertonic vacuoles, chloroplast |
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Animal cells have which of the following characteristics |
No cell wall, cleavage furrows, no large vacuole only small ones |
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Which of the following are found in plant cells but not in animal cells |
Chloroplast |
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which of the following are characteristics common to all plant and animal cells |
An outer membrane or plasma membrane, cytoplasm, ribosomes |
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Which of the following are specialized cells |
Blood cells , muscle cells, bone cells |
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The fourth level of cell organization is the __________ |
System-level |
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Archaebacteria and Eubacteria are _________ |
Prokaryotes |
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_________ Can be single or multi-celled and have organization within their structure |
Eukaryotes |
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Because of _______ the open gasoline can filled the garage with the smell of gas |
Diffusion |
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When proteins help transport molecules in and out of the cell it is called ______________ |
Facilitated diffusion |
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When the cell engulfs small dissolved particles it is called |
Endocytosis, and Pinocytosis |
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__________ feedback is when the body reacts in the same direction as a stimulus |
Positive |
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You and your body maintain homeostasis by |
Sweating, breathing, eating and drinking, all of the above |
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Compare animal and plant cell |
Comparison |
