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12 Cards in this Set
- Front
- Back
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Which organelle connects to (is continuous with) the nuclear envelope?
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the endoplasmic reticulum
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Why do phospholipids spontaneously form membranes when they are mixed with water?
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they have hydrophilic phosphate heads that are attracted to water and hydrophobic fatty acid tails that avoid water
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What kinds of cells might have both a nucleus and a cell wall?
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Plants, Fungi, Plantlike-Protists
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In plant cells, ______ may contain organic nutrients, pigments, and poisons.
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food vacuole
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Tay-Sachs disease results from ______ lacking a specific type of lipid-digesting enzyme.
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lysosomes
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What theory states that all living things are composed of cells?
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Cell theory
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What is an example of an adaptation that increased the surface area of a part of a cell that is involved in cellular respiration?
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the cristae (layers of folded inner membrane) of mitochondria
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What characteristic of chloroplasts and mitochondria suggests that they might have evolved from free-living bacteria?
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they have their own DNA
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Information is transferred from the nucleus to ribosomes via (in the form of) ______.
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mRNA
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What are the functions of the smooth endoplasmic reticulum?
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lipid synthesis, steroid synthesis, and drug detoxification
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What are the hairlike structures visible on the surface of a Paramecium that allow it to move?
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Cilia
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Based on its function in detoxifying drugs, you would expect to find a large amount of smooth ER in ______ cells.
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liver
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