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so it can be poo
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What must a cell expand during active transport to accomplish movement of a substance?
Active Transport
What are passive transport active transport and endocytosis?
These are three different ways that cells have to get things in and out of the cell. Passive transport is movement without the use of energy, active transport requires energy.Active transport requires energy since the molecules are going toward a region that has a higher concentration of that molecule. The cell is 'stuffing' more into itself.Endocytosis means to 'take into the cell'. Usually this a larger molecule and cell must wrap part of itself around the molecule and then can bring it inside. This is a type of phagocytosis (cell eating).This requires energy as well.
What is the active transport and passive transport?
Active transport is the movement of a substance across a cell membrane against its concentration gradient and Passive transport means moving biochemicals and other atomic or molecular substances across membranes.
Is sodium chloride passive transport or an active transport?
Active because concentration in cells must remain hight than in the blood.
What three major processes of nutrient absorption must be combined with a carrier molecule for transport?
Facilitated diffusion and Active transport must be combined with a carrier molecule for transport. Simple diffusion does not.
What must a cell expand during active transport to accomplish movement of a substance?
Active Transport
A cell must expend energy to transport substances using?
Active transport is the type of transport where a cell must expend energy. These are endocytosis, exocytosis, and the sodium-potassium pump.
The concentration of molecule x is greater inside a cell than outside. If the cell acquires x from its surroundings x must cross the cell membrane by mean of?
active transport
What is the transport of materials against a concentration gradient called?
The process of moving materials against a concentration gradient is called active transport. Active transport generally uses a protein pump to move molecules from an area of low concentration to an area of high concentration; in order to perform an active transport, the cell must use some of its energy to initiate the reaction.
What is a demonstration to show active transport?
Active transport is when cells must move materials in a direction against a concentration gradient. Proteins transporting molecules across cell membranes is an example. Active transport requires energy as opposed to passive transport
What are passive transport active transport and endocytosis?
These are three different ways that cells have to get things in and out of the cell. Passive transport is movement without the use of energy, active transport requires energy.Active transport requires energy since the molecules are going toward a region that has a higher concentration of that molecule. The cell is 'stuffing' more into itself.Endocytosis means to 'take into the cell'. Usually this a larger molecule and cell must wrap part of itself around the molecule and then can bring it inside. This is a type of phagocytosis (cell eating).This requires energy as well.
What is the active transport and passive transport?
Active transport is the movement of a substance across a cell membrane against its concentration gradient and Passive transport means moving biochemicals and other atomic or molecular substances across membranes.
Is sodium chloride passive transport or an active transport?
Active because concentration in cells must remain hight than in the blood.
What type of transport is faciliated diffusion?
Neither of these require energy. Diffusion occurs naturally when a higher concentration of a substance exists on one side of a membrane than the other; molecules will enter into the area of lesser concentration until there is an equilibrium on both sides. Active transport requires the energy of the cell.
What three major processes of nutrient absorption must be combined with a carrier molecule for transport?
Facilitated diffusion and Active transport must be combined with a carrier molecule for transport. Simple diffusion does not.
Describe the process of active transport?
Active transport is when a protein moves a certain material across the membrane from a region of lower concentration to a region of higher concentration. This means the substance is absorbed against the concentration gradient and energy is needed for this active transport to work. The energy is usually comes from adenosine triphosphate or ATP, every cell supplies its own ATP by cell respiration. Globular proteins or pump proteins or transporter proteins in membranes carry out the active transport, the membrane must contain a lot of these proteins so that the cell can control the contents of its cytoplasm precisely. An example of active transport is in human nerve cells where potassium ions are pumped in and sodium ions are constantly transported out of the cell by active transport into the external fluid bathing the cell to build up a store of potential energy or an electrical impulse that is used to transmit a nerve impulse.
When do cells exchange materials across the cell?
A bilayer of phospholipids regulates cell traffic. There are five methods of transport across the membrane; diffusion, facilitated diffusion, active transport, co transport and endocytosis/exocytosis.
