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In cellular respiration, electrons from glucose move gradually through the electron transport chain towards oxygen, passing to lower and lower energy states and releasing energy at each step. The goal of cellular respiration is to capture this energy in the form of ATP.
Flag carrier. A Boeing 777-200LR of Dubai-based Emirates, one of the two flag carriers of the United Arab Emirates. A flag carrier is a transport company, such as an airline or shipping company, that, being locally registered in a given sovereign state, enjoys preferential rights or privileges accorded by the government for international ...
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The simplest forms of transport across a membrane are passive. Passive transport does not require the cell to expend any energy and involves a substance diffusing down its concentration gradient across a membrane. A concentration gradient is a just a region of space over which the concentration of a substance changes, and substances will ...
- Why no energy is spent on switching the carrier proteins?These carrier proteins are gated trans-membrane proteins and do not require ATP (adenosine triphosphate) to function. The gate is activated due to...
- What is the difference between simple diffusion and facilitated diffusion?Simple diffusion is the movement of molecules through a cell membrane without using the channels formed by integral membrane protein. Facilitated d...
- Can carrier proteins move molecules from the inside to the outside? Also, is it possible to replace ...Yes and it depends but generally yes the big thing to keep in mind is that many of these gates are evolving randomly. So getting the most efficient...
- I noticed that according to the quiz (Practice: Passive transport) sodium, potassium, and calcium ca...Yes , i also think that question is wrong. There are channel proteins in the body for transport of those ions. Sodium : Voltage gated Channel Prote...
- the topic states above that "a concentration gradient itself is a form of stored (potential) energy"...A concentration gradient will cause movement of molecules from high concentration to low concentration. Therefore, it is a driving force for the mo...
- If a molecule wanted to diffuse across the plasma membrane, but wasn't able to make it all the way t...Interesting question, I don't know if anyone has looked into whether membranes might get "gummed up" by material getting stuck part way through. On...
- What is faster, a simple diffusion (of oxygen, for example), or a facilitated one (of water through ...I don't think there is a general rule (leaning toward facilitated but I have counter examples too). However, you cannot use passive diffusion to mo...
- What is osmosisThe movement of water across a concentration gradient.
- if particles moves from low concentration to higher concentration can we call it the concentration g...Careful: it moves from HIGH to LOW, not the other way around. That said, this is also the definition of a _gradient_: it changes as you move from h...
- Which of these cells can help to move and transport bloodBlood is a cell, not a particle. That means that it could not be diffused. It actually gets transported by blood vessels, which are long chains of...
flag carrier: [noun] an air or sea transport line flying the flag of the country to which it belongs.
There are two generic types of membrane permeability catalysts: carriers and channels. Carrier proteins are membrane proteins that shuttle back and forth across the membrane. They bind to specific hydrophilic molecules when they are located in the hydrophilic region of the membrane, hold on to the bound molecule as they traverse the hydrophobic ...
In humans and other mammals, biological sex is determined by a pair of sex chromosomes: XY in males and XX in females. Genes on the X chromosome are said to be X-linked. X-linked genes have distinctive inheritance patterns because they are present in different numbers in females (XX) and males (XY). X-linked human genetic disorders are much ...
May 28, 2023 · Definition. noun, plural: carriers. (general) A person or object that transports or conveys. ( immunology) An asymptomatic person or animal harboring the pathogen, and acts as a vector transmitting the pathogen to others. ( genetics) (1) A heterozygous individual bearing an unexpressed defective gene. (2) An organism possessing a recessive gene ...
