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15 Cards in this Set
- Front
- Back
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The cell theory states that _____.
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all living things are composed of cells
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Why are living cells limited to remaining microscopic in size
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Exchanges of substances at the membrane surface would take too long to diffuse throughout the interior of the cell
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Chromosomes consist of _____.
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proteins and DNA
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What do we call the fluid in which all cellular organelles are suspended?
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cytoplasm
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The endoplasmic reticulum is needed for _____.
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A. synthesis of certain proteins
B. hormone synthesis C. detoxification D. synthesis of lipids |
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In what manner do molecules such as proteins and RNA enter into or exit from the nucleus?
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movement through pores in the nuclear envelope
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Which of the following lists the correct order in which newly synthesized proteins are delivered to the plasma membrane
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from the endoplasmic reticulum to the Golgi apparatus to the plasma membrane
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Which of the following organelles is/are found in animal cells, but not in plant cells
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A. mitochondria
B. chloroplasts C. central vacuole D. cell wall E. cytoskeleton F. none of the above |
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Sorting and modification of proteins is an important function of _____.
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the Golgi apparatus
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Prokaryotic cells do not contain _____.
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endoplasmic reticulum
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Lysosomes contain very powerful digestive enzymes that can break down proteins, carbohydrates, and other molecules. Why don't these enzymes digest the cell itself?
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The enzymes are separated from the cytoplasm by the lysosomal membrane.
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The difference between smooth and rough ER (RER) is _____.
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the presence of ribosomes on the RER
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The function of the mitochondria is _____.
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to convert food to energy for the cell
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Which organelle would you expect to be in abundance in the liver of a drug addict?
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smooth endoplasmic reticulum
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Which of the following structures is/are found in all cells? Select the best answer.
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plasma membrane and ribosomes
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