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Questions and Answers
Which type of transport does not require energy input?
Which type of transport does not require energy input?
- Symport
- Group translocation
- Passive diffusion (correct)
- Primary active transport
Which type of transport is faster than passive diffusion and involves the use of transport proteins?
Which type of transport is faster than passive diffusion and involves the use of transport proteins?
- Uniport
- Facilitated diffusion (correct)
- Primary active transport
- Symport
Which type of transport requires energy input to move nutrients against a concentration gradient?
Which type of transport requires energy input to move nutrients against a concentration gradient?
- Iron uptake
- Symport
- Passive diffusion
- Primary active transport (correct)
Which type of transport is used to transport nutrients that are moving with a concentration gradient?
Which type of transport is used to transport nutrients that are moving with a concentration gradient?
Which type of transport involves the transport of a single molecule across a membrane in one direction?
Which type of transport involves the transport of a single molecule across a membrane in one direction?
Which type of transport involves the transport of two or more molecules across a membrane in the same direction?
Which type of transport involves the transport of two or more molecules across a membrane in the same direction?
Which type of transport involves the transport of two or more molecules across a membrane in opposite directions?
Which type of transport involves the transport of two or more molecules across a membrane in opposite directions?
Which type of transport is the transport of a group of molecules across a membrane in one step?
Which type of transport is the transport of a group of molecules across a membrane in one step?
Which mechanism helps to dissolve iron from the soil to increase iron uptake in plants?
Which mechanism helps to dissolve iron from the soil to increase iron uptake in plants?
Which plant mechanism can transport iron across the plasma membrane of root cells?
Which plant mechanism can transport iron across the plasma membrane of root cells?
Which plant mechanism can reduce ferric iron (Fe3+) to ferrous iron (Fe2+), aiding in iron uptake?
Which plant mechanism can reduce ferric iron (Fe3+) to ferrous iron (Fe2+), aiding in iron uptake?
Which type of transport is an energy-dependent process that is more efficient than individual transport mechanisms?
Which type of transport is an energy-dependent process that is more efficient than individual transport mechanisms?
Which mechanism of nutrient uptake requires energy input from the microorganism?
Which mechanism of nutrient uptake requires energy input from the microorganism?
Which mechanism is used to transport nutrients that are at a lower concentration in the environment than they are inside the microorganism?
Which mechanism is used to transport nutrients that are at a lower concentration in the environment than they are inside the microorganism?
Which mechanism involves the use of transport proteins to help nutrients move across the cell membrane?
Which mechanism involves the use of transport proteins to help nutrients move across the cell membrane?
Which mechanism of nutrient uptake is faster than diffusion and can transport nutrients at a higher concentration inside the microorganism than outside the cell?
Which mechanism of nutrient uptake is faster than diffusion and can transport nutrients at a higher concentration inside the microorganism than outside the cell?
Which mechanism of nutrient uptake does not require energy input and involves movement from an area of high concentration to an area of low concentration?
Which mechanism of nutrient uptake does not require energy input and involves movement from an area of high concentration to an area of low concentration?
Which mechanism of nutrient uptake is a spontaneous process that does not require energy input and involves movement from an area of high concentration to an area of low concentration until equilibrium is reached?
Which mechanism of nutrient uptake is a spontaneous process that does not require energy input and involves movement from an area of high concentration to an area of low concentration until equilibrium is reached?
Which mechanism of nutrient uptake is a spontaneous process that is faster than passive diffusion because it involves the use of transport proteins?
Which mechanism of nutrient uptake is a spontaneous process that is faster than passive diffusion because it involves the use of transport proteins?
Which mechanism of nutrient uptake involves nutrients moving from an area of high concentration to an area of low concentration until equilibrium is reached?
Which mechanism of nutrient uptake involves nutrients moving from an area of high concentration to an area of low concentration until equilibrium is reached?
Which mechanism of nutrient uptake is used to transport nutrients at a higher concentration inside the microorganism than outside the cell?
Which mechanism of nutrient uptake is used to transport nutrients at a higher concentration inside the microorganism than outside the cell?
Which mechanism of nutrient uptake moves nutrients against a concentration gradient and requires energy input from the microorganism?
Which mechanism of nutrient uptake moves nutrients against a concentration gradient and requires energy input from the microorganism?
Which mechanism of nutrient uptake is a spontaneous process that is faster than diffusion because it involves the use of transport proteins?
Which mechanism of nutrient uptake is a spontaneous process that is faster than diffusion because it involves the use of transport proteins?
Which mechanism of nutrient uptake involves the movement of nutrients from an area of high concentration to an area of low concentration without requiring energy input?
Which mechanism of nutrient uptake involves the movement of nutrients from an area of high concentration to an area of low concentration without requiring energy input?
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Study Notes
Types of Transport
- Passive transport does not require energy input.
- Facilitated diffusion is faster than passive diffusion and involves the use of transport proteins.
- Active transport requires energy input to move nutrients against a concentration gradient.
- Passive transport is used to transport nutrients that are moving with a concentration gradient.
Mechanisms of Transport
- Uniport involves the transport of a single molecule across a membrane in one direction.
- Symport involves the transport of two or more molecules across a membrane in the same direction.
- Antiport involves the transport of two or more molecules across a membrane in opposite directions.
- Group translocation is the transport of a group of molecules across a membrane in one step.
Iron Uptake in Plants
- Chelation is the mechanism that helps to dissolve iron from the soil to increase iron uptake in plants.
- Iron transporters are plant mechanisms that can transport iron across the plasma membrane of root cells.
- Ferric reductase is a plant mechanism that can reduce ferric iron (Fe3+) to ferrous iron (Fe2+), aiding in iron uptake.
Mechanisms of Nutrient Uptake
- Active transport is an energy-dependent process that is more efficient than individual transport mechanisms.
- Carrier-mediated transport requires energy input from the microorganism.
- Active transport is used to transport nutrients that are at a lower concentration in the environment than they are inside the microorganism.
- Facilitated diffusion is a mechanism that involves the use of transport proteins to help nutrients move across the cell membrane.
- Active transport is faster than diffusion and can transport nutrients at a higher concentration inside the microorganism than outside the cell.
- Passive diffusion is a spontaneous process that does not require energy input and involves movement from an area of high concentration to an area of low concentration until equilibrium is reached.
- Facilitated diffusion is a spontaneous process that is faster than passive diffusion because it involves the use of transport proteins.
- Passive diffusion involves nutrients moving from an area of high concentration to an area of low concentration until equilibrium is reached.
- Active transport is used to transport nutrients at a higher concentration inside the microorganism than outside the cell.
- Active transport moves nutrients against a concentration gradient and requires energy input from the microorganism.
- Facilitated diffusion is a spontaneous process that is faster than diffusion because it involves the use of transport proteins.
- Passive diffusion involves the movement of nutrients from an area of high concentration to an area of low concentration without requiring energy input.
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