| 单词 | active transport |
| 例句 | Lyrical lists of domestic detritus contain the sweetness of child rearing, as well as a mysterious sense of loss: “Parent meetings, medical forms, class photos, permission slips. Organelles. Passive versus active transport.” Jamie Quatro’s First Novel Centers on Religious and Sexual Passion 2018-02-06T05:00:00Z The researchers think that the animals' use of internal energy, or active transport, when moving the salts could be the explanation. Consistent metabolism may prove costly for insects in saltier water 2023-10-06T04:00:00Z Mr Azhar said a partnership approach, involving authorities and employers, was needed to promote healthy, affordable food, active transport and green spaces. Health boss says obesity 'bigger health impact than Covid' long term 2023-05-25T04:00:00Z Some of this reabsorption requires active transport and consumes ATP. Concepts of Biology 2013-04-25T00:00:00Z In the long term, active transport slowly maintains the concentration differences, but the cell may fire hundreds of times in rapid succession without seriously depleting them. College Physics for AP Courses 2015-08-12T00:00:00Z Unloading at the sink end of the phloem tube occurs by either diffusion or active transport of sucrose molecules from an area of high concentration to one of low concentration. Biology for AP Courses 2022-06-09T00:00:00Z The movement of materials against a concentration difference is known as active transport, and it requires energy. Miller & Levine Biology 2018-01-01T00:00:00Z The fetus has a high demand for amino acids and iron, and those substances are moved across the placenta by active transport. Anatomy and Physiology 2013-06-19T00:00:00Z Some active transport mechanisms move small-molecular weight material, such as ions, through the membrane. Concepts of Biology 2013-04-25T00:00:00Z This sodium-potassium pump is an example of active transport, wherein cell energy is used to move ions across membranes against diffusion gradients and the Coulomb force. College Physics for AP Courses 2015-08-12T00:00:00Z As active transport of nutrients and gas is easier across a single layer of flat epithelial cells than cuboidal cells. Biology for AP Courses 2022-06-09T00:00:00Z The active transport of small molecules or ions across a cell membrane is usually carried out by membrane proteins called protein pumps. Miller & Levine Biology 2018-01-01T00:00:00Z During active transport, ATP is required to move a substance across a membrane, often with the help of protein carriers, and usually against its concentration gradient. Anatomy and Physiology 2013-06-19T00:00:00Z Because active transport mechanisms depend on cellular metabolism for energy, they are sensitive to many metabolic poisons that interfere with the supply of ATP. Concepts of Biology 2013-04-25T00:00:00Z In fact, it is estimated that at least 25% of the body's energy is expended on active transport of substances at the cellular level. College Physics for AP Courses 2015-08-12T00:00:00Z Releasing hormones that stimulate body cells to undergo more active transport. Biology for AP Courses 2022-06-09T00:00:00Z Cells use the energy provided by ATP to carry out active transport. Miller & Levine Biology 2018-01-01T00:00:00Z One of the most common types of active transport involves proteins that serve as pumps. Anatomy and Physiology 2013-06-19T00:00:00Z Primary active transport moves ions across a membrane and creates a difference in charge across that membrane. Concepts of Biology 2013-04-25T00:00:00Z The study of active transport carries us into the realms of microbiology, biophysics, and biochemistry and it is a fascinating application of the laws of nature to living structures. College Physics for AP Courses 2015-08-12T00:00:00Z This movement can be accomplished by facilitated diffusion and active transport. Biology for AP Courses 2022-06-09T00:00:00Z The remaining emissions can be dramatically reduced by encouraging a shift toward electric vehicles powered by clean energy sources and toward active transport, like walking and biking. I helped pen the UN climate report. Here’s why it gives me hope 2022-04-22T04:00:00Z When active transport powers the transport of another substance in this way, it is called secondary active transport. Anatomy and Physiology 2013-06-19T00:00:00Z The primary active transport system uses ATP to move a substance, such as an ion, into the cell, and often at the same time, a second substance is moved out of the cell. Concepts of Biology 2013-04-25T00:00:00Z What is happening is called active transport, a process in which a living membrane expends energy to move substances across it. College Physics for AP Courses 2015-08-12T00:00:00Z Instead, they pass a lot of very dilute urine, and they achieve electrolyte balance by active transport of salts through the gills. Biology for AP Courses 2022-06-09T00:00:00Z "It's great if the first choice is to be public transport and active transport - but that does mean the government has to change radically investment." 'Gob-smacking' vision for future UK transport 2020-03-27T04:00:00Z Most substances that cross the wall of a blood vessel into the CNS must do so through an active transport process. Anatomy and Physiology 2013-06-19T00:00:00Z Secondary active transport describes the movement of material using the energy of the electrochemical gradient established by primary active transport. Concepts of Biology 2013-04-25T00:00:00Z Many living membranes move water and other substances by active transport. College Physics for AP Courses 2015-08-12T00:00:00Z The processes of diffusion, osmosis, and active transport ensure that the urine excreted from the body is hypertonic, thus preventing dehydration. Biology for AP Courses 2022-06-09T00:00:00Z Promoting active transport - that's walking and cycling - is supported by all parties, in an age concerned with emissions and obesity. What the parties' promises on the environment really mean 2019-11-27T05:00:00Z Several passive transport channels, as well as active transport pumps, are necessary to generate a transmembrane potential and an action potential. Anatomy and Physiology 2013-06-19T00:00:00Z Using the energy of the electrochemical gradient created by the primary active transport system, other substances such as amino acids and glucose can be brought into the cell through membrane channels. Concepts of Biology 2013-04-25T00:00:00Z MRI can also be used to follow the movement of certain ions across membranes, yielding information on active transport, osmosis, dialysis, and other phenomena. College Physics for AP Courses 2015-08-12T00:00:00Z Almost all nutrients are reabsorbed, and this occurs either by passive or active transport. Biology for AP Courses 2022-06-09T00:00:00Z Albers, R. W. Biochemical aspects of active transport. Dynamics of P-type ATPase transport revealed by single-molecule FRET 2017-11-07T05:00:00Z During active transport, energy is expended to assist material movement across the membrane in a direction against their concentration gradient. Anatomy and Physiology 2013-06-19T00:00:00Z ATP itself is formed through secondary active transport using a hydrogen ion gradient in the mitochondrion. Concepts of Biology 2013-04-25T00:00:00Z Much better is what researchers call active transport: walking and cycling, mainly. Mobility: The urban downshift : Nature : Nature Publishing Group 2016-03-15T04:00:00Z Because sodium is always reabsorbed by active transport and water follows sodium to maintain osmotic balance, aldosterone manages not only sodium levels but also the water levels in body fluids. Biology for AP Courses 2022-06-09T00:00:00Z Big savings are possible from “active transport” – more cycling and walking. Eat less red meat and cycle more for your and the planet's health 2015-06-23T04:00:00Z Conversely, antiporters are secondary active transport systems that transport substances in opposite directions. Anatomy and Physiology 2013-06-19T00:00:00Z Where does the cell get energy for active transport processes? Concepts of Biology 2013-04-25T00:00:00Z "There's a lot of information coming out on something called active transport that compares traveling by bike or public transit to traveling by car," he said. Bike sharing offers big fitness benefits for the little commute 2013-06-24T12:12:41Z Facilitated diffusion utilizes protein channels to move solute molecules from areas of higher to lower concentration while active transport mechanisms are required to move solutes against concentration gradients. Biology for AP Courses 2022-06-09T00:00:00Z Scottish ministers are focused on transport initiatives aimed at reducing traffic congestion and increasing the proportion of journeys made by public or active transport as we move towards a low carbon economy. Transport policies 'are perverse' 2012-09-12T00:11:03Z Other forms of active transport do not involve membrane carriers. Anatomy and Physiology 2013-06-19T00:00:00Z Each inactive tape transport requires two amperes and the one active transport requires 10 amperes. Preliminary Specifications: Programmed Data Processor Model Three (PDP-3) October, 1960 It allows the cells to store energy and transfer it within the cells to provide energy for cellular processes such as growth, movement and active transport. Biology for AP Courses 2022-06-09T00:00:00Z In the upper component, the dialysate has a lower solute concentration than the blood, which allows the urea to be separated via active transport down the concentration gradient. Biology for AP Courses 2022-06-09T00:00:00Z Turgor in the guard cells is regulated by the active transport of several ions, including K+ and H+, across the plasma membrane. Biology for AP Courses 2022-06-09T00:00:00Z For example, the sodium-potassium pump employs active transport to pump sodium out of cells and potassium into cells, with both substances moving against their concentration gradients. Anatomy and Physiology 2013-06-19T00:00:00Z As sodium ion concentrations build outside of the plasma membrane because of the action of the primary active transport process, an electrochemical gradient is created. Biology for AP Courses 2022-06-09T00:00:00Z Some pumps, which carry out primary active transport, couple directly with ATP to drive their action. Biology for AP Courses 2022-06-09T00:00:00Z What would likely occur to the osmolarity of the filtrate in the ascending limb if the active transport of NaCl stopped? Biology for AP Courses 2022-06-09T00:00:00Z Facilitated diffusion works in the same direction as active transport. Biology for AP Courses 2022-06-09T00:00:00Z The absorption of most nutrients through the mucosa of the intestinal villi requires active transport fueled by ATP. Anatomy and Physiology 2013-06-19T00:00:00Z Primary active transport is indirectly dependent on ATP, while secondary active transport is directly dependent on ATP. Biology for AP Courses 2022-06-09T00:00:00Z Primary active transport does not require ATP, while secondary active transport is indirectly dependent on ATP. Biology for AP Courses 2022-06-09T00:00:00Z Some active transport mechanisms move small-molecular weight materials, such as ions, through the membrane. Biology for AP Courses 2022-06-09T00:00:00Z Recall the active transport work of the sodium-potassium pump in cell membranes. Biology for AP Courses 2022-06-09T00:00:00Z Most carriers are linked to the active transport of sodium. Anatomy and Physiology 2013-06-19T00:00:00Z Substances that move across membranes by this mechanism, a process called active transport, include ions, such as Na+ and K+. Biology for AP Courses 2022-06-09T00:00:00Z The sodium-potassium pump, which maintains electrochemical gradients across the membranes of nerve cells in animals, is an example of primary active transport. Biology for AP Courses 2022-06-09T00:00:00Z Because active transport mechanisms depend on a cell’s metabolism for energy, they are sensitive to many metabolic poisons that interfere with the supply of ATP. Biology for AP Courses 2022-06-09T00:00:00Z Some examples of pumps for active transport are Na+-K+ ATPase, which carries sodium and potassium ions, and H+-K+ ATPase, which carries hydrogen and potassium ions. Biology for AP Courses 2022-06-09T00:00:00Z Since electrolytes dissociate into ions in water, most are absorbed via active transport throughout the entire small intestine. Anatomy and Physiology 2013-06-19T00:00:00Z Why must active transport of molecules across plasma membranes function continuously? Biology for AP Courses 2022-06-09T00:00:00Z What is the difference between primary and secondary active transport? Biology for AP Courses 2022-06-09T00:00:00Z Primary active transport moves ions across a membrane and creates a difference in charge across that membrane, which is directly dependent on ATP. Biology for AP Courses 2022-06-09T00:00:00Z Primary active transport is directly dependent on ATP, while secondary active transport is indirectly dependent on ATP. Biology for AP Courses 2022-06-09T00:00:00Z An example would be the active transport of Na+ out of a cell and K+ into a cell by the Na+/K+ Anatomy and Physiology 2013-06-19T00:00:00Z One method is through secondary active transport in which the transport takes place against the glucose concentration gradient. Biology for AP Courses 2022-06-09T00:00:00Z Glucose reabsorption in the kidneys is by secondary active transport. Anatomy and Physiology 2013-06-19T00:00:00Z Secondary active transport describes the movement of material that is due to the electrochemical gradient established by primary active transport that does not directly require ATP. Biology for AP Courses 2022-06-09T00:00:00Z Antiport, active transport, diffusion, and facilitated diffusion are additional mechanisms by which substances are moved from one side of a membrane to the other. Anatomy and Physiology 2013-06-19T00:00:00Z As described previously, when active transport powers the transport of another substance in this way, it is called “secondary active transport.” Anatomy and Physiology 2013-06-19T00:00:00Z These changes are accomplished by osmosis in the descending limb and active transport in the ascending limb. Anatomy and Physiology 2013-06-19T00:00:00Z Mechanisms of solute recovery include active transport, simple diffusion, and facilitated diffusion. Anatomy and Physiology 2013-06-19T00:00:00Z The primary active transport that functions with the active transport of sodium and potassium allows secondary active transport to occur. Biology for AP Courses 2022-06-09T00:00:00Z |
| 随便看 |
|
英语例句辞典收录了117811条英语例句在线翻译词条，基本涵盖了全部常用单词及词组的例句翻译及用法，是英语学习的有利工具。