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24 Cards in this Set
- Front
- Back
- 3rd side (hint)
What are some characteristics of life?
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1)Growth
2)Reproduction 3)Responsiveness 4)Metabolism |
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How are living things organized?
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The presence or absence of a nucleus
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____ lack a membrane bound cell nucleus.
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prokaryotes
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True/False
All bacteria are classified as prokaryotes. |
True
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The nucleus in _____ contains the DNA required for replication and formation of proteins.
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eukaryotes
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Structures found within the cytoplasm (the inside part) of the cells are known as _____.
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organelles
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Cell walls are made of _____, a complex sugar-amino acid compound which covers the entire surface of a prokaryotic cell.
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peptidoglycan
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Bacterial cells walls are either ____or ____.
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gram positive; gram negative
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A gram negative organism stained with methylene blue would look ____ in color.
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pink
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This is due to the counterstain, eosin
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A ______ organism stained with methylene blue would appear blue to black in color.
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gram positive
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True/False
Some gram positive organisms include tuberculosis and leprosy |
True
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True/False
Endotoxin is released from gram negative bacteria when the cell wall disintegrates. |
True
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LPS (lipopolysaccharide), also known as endotoxin causes vasodilation and thrombosis during infection
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______ is a sticky gelatinous substance surrounding the surface of some bacteria.
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Glycocalyx
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______ are long whiplike structures that extend through cell wall and glycocalyx and propel the cell through the environment.
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Flagella
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they spin 360 degrees
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True/False
Fimbriae and pilli are sticky bristle like projections used by bacteria to adhere to surfaces. |
True
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True/False
Animal and protozoan eukaryotic cells lack cell walls. |
True
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True/False
Plant and fungal eukaryotes have cell walls. |
True
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A ______ flagella has a 9+2 microtubular arrangement, and does not rotate, but whips.
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eukaryotic
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____are hairlike structures shorter than flagella.
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Cilia
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True/False
The eukaryotic nucleus contains nucleoli, where some forms of RNA are synthesized. |
True
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__RNA is used as a pattern for protein synthesis in the rough endoplasmic reticulum.
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messenger
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____ is the site of lipid synthesis and transport.
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smooth endoplasmic reticulum
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The ____ is the structure responsible for preparing molecules synthesized in the cell for export outside the cell.
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golgi apparatus
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____ are double membrane bound organelles that contain the enzymes responsible for aerobic respiration by the cell. It also forms ATP.
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Mitochondria
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