Question at position 85 The sodium-potassium pump is an example of:active transportpinocytosisosmosisphagocytosisfacilitated diffusion

Question

BlackTom AI · Accepted Answer

First, restating the question and the options helps frame what we’re evaluating: The sodium-potassium pump is an example of: active transport, pinocytosis, osmosis, phagocytosis, or facilitated diffusion.
Option 1: active transport. This is correct because the Na+/K+ pump moves sodium and potassium ions against their concentration gradients, using energy from ATP. It is a classic example of active transport driven by a pump protein (a P-type ATPase) that requires cellular energy.
Option 2: pinocytosis. This is a form of endocytosis where the cell ingests fluids and dissolved substances by forming small vesicles. It is an energy-dependent process but it does not involve specific ion pumping against gradients, so it does not describe the Na+/K+ pump.
Option 3: osmosis. Osmosis is the diffusion of water across a membrane driven by solute concentration differences. It does not entail active ion transport against gradients or direct ATP use, so it does not describe the Na+/K+ pump.
Option 4: phagocytosis. This is the engulfing of large particles or cells by the cell membrane to form vesicles. Like pinocytosis, it’s endocytic and energetic but not a pump-driven ion transport mechanism, so it’s not the Na+/K+ pump.
Option 5: facilitated diffusion. This process uses membrane proteins to assist movement of substances down their concentration gradient without direct energy use. In contrast, the Na+/K+ pump requires ATP to move ions against their gradients, so it is not facilitated diffusion.
In summary, the hallmark features of the sodium-potassium pump—energy expenditure, active transport, movement against gradients, and involvement of a specific membrane pump protein—distinguish it from the other listed mechanisms.»

Question at position 85 The sodium-potassium pump is an example of:active transportpinocytosisosmosisphagocytosisfacilitated diffusion单项选择题

类似问题

Movement of a substance from an area of low concentration to an area of high concentration using energy obtained from ATP is called ____.

Question at position 19 What membrane proteins are active during graph section labeled “A”?Membrane proteins are inactiveLigand-gated channelsVoltage-gated channelsNa+/K+ transporterClear my selection

Group translocation is an example of _________________.

Bacterial cells found in your tap water (low nutrients) will rely heavily on __________ to obtain nutrients.

The Na+/K+ pump is an excellent example of Primary Active Transport.

Properties associated with protein membrane active transporters is/are -

Question at position 44 Why does the kidney require significant energy for carrier-mediated transport?ATP is needed to filter blood at the glomerulus.It has to digest proteins before reabsorption.Many substances are actively transported against gradients.Transport processes rely on osmosis.

更多留学生实用工具

智能学习助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单