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Questions and Answers
What substances are constantly moving across the cell membrane?
What substances are constantly moving across the cell membrane?
What are the two main categories of transport mechanisms across the cell membrane?
What are the two main categories of transport mechanisms across the cell membrane?
Which of the following accurately describes passive transport?
Which of the following accurately describes passive transport?
Which type of transport mechanism would be used to move nutrients into a cell against a concentration gradient?
Which type of transport mechanism would be used to move nutrients into a cell against a concentration gradient?
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Which of the following substances is not typically transported across the cell membrane?
Which of the following substances is not typically transported across the cell membrane?
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What types of substances are primarily transported by simple diffusion?
What types of substances are primarily transported by simple diffusion?
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Why is the simple diffusion of water-soluble substances like ions generally low?
Why is the simple diffusion of water-soluble substances like ions generally low?
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What is the term for the passive diffusion of water across the cell membrane?
What is the term for the passive diffusion of water across the cell membrane?
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What are aquaporins responsible for in the process of simple diffusion?
What are aquaporins responsible for in the process of simple diffusion?
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Which of the following substances is commonly transported through simple diffusion?
Which of the following substances is commonly transported through simple diffusion?
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What is a key characteristic of facilitated diffusion?
What is a key characteristic of facilitated diffusion?
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Which factor directly influences the maximum rate of facilitated diffusion?
Which factor directly influences the maximum rate of facilitated diffusion?
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What does facilitated diffusion primarily transport into the cell?
What does facilitated diffusion primarily transport into the cell?
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What is true about the energy requirement of facilitated diffusion?
What is true about the energy requirement of facilitated diffusion?
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Which statement is false regarding facilitated diffusion?
Which statement is false regarding facilitated diffusion?
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What is a characteristic of passive transport mechanisms?
What is a characteristic of passive transport mechanisms?
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Which type of diffusion does not utilize protein carriers?
Which type of diffusion does not utilize protein carriers?
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What is the role of protein carriers in facilitated diffusion?
What is the role of protein carriers in facilitated diffusion?
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Which statement is true regarding the energy consumption of passive transport?
Which statement is true regarding the energy consumption of passive transport?
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What distinguishes facilitated diffusion from simple diffusion?
What distinguishes facilitated diffusion from simple diffusion?
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What is one type of substance that moves across the cell membrane?
What is one type of substance that moves across the cell membrane?
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Which category do transport mechanisms across the cell membrane belong to?
Which category do transport mechanisms across the cell membrane belong to?
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Which of the following is NOT a substance that moves across the cell membrane?
Which of the following is NOT a substance that moves across the cell membrane?
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What type of movement does the transport of CO₂ across the cell membrane represent?
What type of movement does the transport of CO₂ across the cell membrane represent?
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Which of the following correctly describes the movement of substances across the cell membrane?
Which of the following correctly describes the movement of substances across the cell membrane?
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What is a key characteristic of primary active transport?
What is a key characteristic of primary active transport?
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What energy source is typically consumed during primary active transport?
What energy source is typically consumed during primary active transport?
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Which of the following best describes the mechanism used in primary active transport?
Which of the following best describes the mechanism used in primary active transport?
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Which pump is an example of primary active transport?
Which pump is an example of primary active transport?
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What is the primary outcome of using primary active transport in cells?
What is the primary outcome of using primary active transport in cells?
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What is the primary characteristic of primary active transport?
What is the primary characteristic of primary active transport?
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Which of the following examples illustrates primary active transport?
Which of the following examples illustrates primary active transport?
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In primary active transport, why is energy consumption necessary?
In primary active transport, why is energy consumption necessary?
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What role do carriers play in primary active transport?
What role do carriers play in primary active transport?
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Which statement accurately describes the direction of substance movement in primary active transport?
Which statement accurately describes the direction of substance movement in primary active transport?
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What is the main source of energy for secondary active transport?
What is the main source of energy for secondary active transport?
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In co-transport, how does the transported substance move in relation to the primary substance?
In co-transport, how does the transported substance move in relation to the primary substance?
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What happens to a substance during secondary active transport?
What happens to a substance during secondary active transport?
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What is the key difference between co-transport and antiport mechanisms?
What is the key difference between co-transport and antiport mechanisms?
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Which statement accurately describes secondary active transport?
Which statement accurately describes secondary active transport?
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What is the primary function of the sodium-potassium pump?
What is the primary function of the sodium-potassium pump?
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Which process relies on sodium ions (Na⁺) for the absorption of glucose by intestinal cells?
Which process relies on sodium ions (Na⁺) for the absorption of glucose by intestinal cells?
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What type of transport mechanism is exemplified by glucose reabsorption in renal cells?
What type of transport mechanism is exemplified by glucose reabsorption in renal cells?
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During primary active transport, what happens to sodium ions (Na⁺)?
During primary active transport, what happens to sodium ions (Na⁺)?
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Which of the following accurately describes secondary active transport?
Which of the following accurately describes secondary active transport?
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What process involves the uptake of liquid substances into a cell?
What process involves the uptake of liquid substances into a cell?
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Which of the following describes the first step of endocytosis?
Which of the following describes the first step of endocytosis?
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What is the term used for the endocytosis of solid substances such as bacteria?
What is the term used for the endocytosis of solid substances such as bacteria?
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In endocytosis, what happens after the cell membrane invaginates?
In endocytosis, what happens after the cell membrane invaginates?
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What distinguishes pinocytosis from phagocytosis?
What distinguishes pinocytosis from phagocytosis?
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