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10 Cards in this Set
- Front
- Back
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What is the name of the chemical compound in chloroplast that traps light energy?
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Chlorophyll
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Name a reactant in photosynthesis
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Carbon dioxide
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You are adrift in the Atlantic Ocean and, being thirsty, drink the surrounding seawater. As a result
a. your cells lyse b. you dehydrate yourself c. you quench you thirst d. your cells become turgid |
b. you dehydrate yourself
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Which one of the following processes could result in the net movement of a substance into a cell, if the substance is more concentrated in the cell than in the surroundings.
a. active transport b. osmosis c. facilitated diffusion d. diffusion |
a. active transport
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Which of the following is not a true statement about diffusion? Diffusion..
a. occurs when particles spread from areas where they are less concentrated to areas where they are more concentrated. b. is a result of the kinetic energy of atoms and molecules c. requires no input of energy into the system. d. proceeds until equilibrium |
a. occurs when particles spread from areas where they are less concentrated to areas where they are more concentrated.
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A white blood cell is capable of producing and releasing thousands of antibody molecules every second. Antibodies are large, complex protein molecules. How would you expect them to leave the cell?
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c. exocytosis
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Which of the following substances could be a cofactor?
a. a protein b. vitamin B6 c. a zine atom d. a polypeptide e. none of the above |
either b or c
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This allows material to move into and out of the cell
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plasma membrane
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Manufactured proteins on the surface are secreted, inserted into membranes, or transported in vesicles to other organelles
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rough ER
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This is a site of protein synthesis
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ribosomes
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