Given a passage and a query based on the passage, generate an unambiguous, concise and simple answer to the query from information in the passage. Note that the answer may not be present in exact form.

[Q]: Active and passive transport processes are two ways molecules and other materials move in and out of cells and cross intracellular membranes. Active transport is the movement of molecules or ions against a concentration gradient (from an area of lower to higher concentration), which does not ordinarily occur, so enzymes and energy are required. Passive transport is the movement of molecules or ions from an area of higher to lower concentration. There are multiple forms of passive transport: simple diffusion, facilitated diffusion, filtration, and osmosis. Passive transport occurs because of the entropy of the system, so additional energy isn't required for it to occur. Compare. Both active and passive transport move materials and can cross biological membranes. Contrast Passive transport of water across a cell membrane. Movement of water is from a higher concentration of water (not solute) to lower concentration of water. Water passes easily through the lipid bilayer. Active transport to pump out water and/or solutes. Most cells in multicellular organisms are bathed in solutions that are not much different inside and out of the cell. Some unicellular organisms can move to different environments. In osmosis, the solvent (usually water) moves across a membrane to dilute the solute particles. 1 Article. 2 Article. 3 Article. 4 Article. 5 Article. 6 Article. 7 Article. 8 Article. 1. How do passive and active transport differ from each other? Passive transport Does not require the use of energy. Moves solutes and solvents across a cell membrane, from higher to lower concentration. Simple diffusion passive transport of small solutes thru the lipid bilayer. Facilitated diffusion transfer of larger molecules thru carrier or channel proteins. Osmosis diffusion of water thru the lipid bilayer. Active Transport a. Water will move out of the cell b. Water will move into the cell c. Fructose and glucose will move into the cell d. There will be no net movement of solutes e. There will be not net movement of water Contrast. 1 Active transport moves materials from lower to higher concentration, while passive transport moves materials from higher to lower concentration. 2 Active transport requires energy to proceed, while passive transport does not require the input of extra energy to occur. Active Transport Solutes move from a region of low concentration to high concentration. Active transport moves materials from lower to higher concentration, while passive transport moves materials from higher to lower concentration. Active transport requires energy to proceed, while passive transport does not require the input of extra energy to occur. Read and learn for free about the following article: Passive transport and active transport across a cell membrane article If you're seeing this message, it means we're having trouble loading external resources on our website. If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked. Does not require the use of. energy. Moves solutes and solvents. across a cell membrane, from. higher to lower concentration. Simple diffusion passive. transport of small solutes thru. the lipid bilayer. Query: how does passive transport move
[A]: Passive transport of water across a cell membrane. Movement of water is from a higher concentration of water to lower concentration of water. Water passes easily through the lipid bilayer.W

[Q]: Add another 30 to 60 minutes for an international departure leaving at a peak time. It's better to arrive at the gate early and catch up on your reading, than to arrive on time and miss your flight (most carriers secure the plane doors five minutes before departure time!). Airport Information Confirm from the list below when you need to arrive at the airport and learn more about the products and services available there. All suggested airport arrival times are approximate, and can fluctuate based on weather, holidays, and busy travel periods. Dulles recommends arriving at the airport 2 1/2 to 3 hours before departure time for an international flight. I tend to leave myself 2 1/2 hours if my airline has allowed me to check in on-line, because then I only have to queue in the shorter, faster line to check my luggage and get my passport vetted. Cathay Pacific Announces Nonstop Service from Dulles International to Hong Kong To Launch Flights with Airbus A350-1000 on September 16, 2018 Content replaced with JS Before you head to the airport though, check your flight time. Check your flight status at IAD to determine if there are any changes in your itinerary. Once you've confirmed your IAD flight status, many airlines recommend you arrive at the airport at least two hours early for domestic flights and three hours prior to international flights. Washington D.C. Airport Parking & Transportation Information At the departure airport. When you arrive at the departure airport, you can check in for your flight in the following ways: Visit a self-service kiosk, where you can print your boarding pass and check baggage. See a United representative at the United check-in counter. Dulles can be a little confusing. Especially if you have to park your car, you want to give yourself extra time for that. My theory is always better to be safe than sorry. You don't want to miss your flight. If you get there early, then get something to eat, find your gate, and bring along a good book or magazine to help pass the time. For international flights, we encourage you to be at the gate no later than 30 minutes before your scheduled departure. If you are departing from the following airports, please be advised that you are required to be at the gate at a specific time before departure, as additional security or documentation checks may be required: All air travelers must arrive at the airport well in advance of their international flights. They'll need time to check baggage and might need to check in for the flight. In addition, all passengers must pass through the Transportation Security Administration screening checkpoint before receiving access to the airport's secure boarding area. When you arrive at the departure airport, you can check in for your flight in the following ways: Visit a self-service kiosk, where you can print your boarding pass and check baggage See a United representative at the United check-in counter Query: how early should i arrive for an international flight at iad
[A]: You should arrive three hours prior to international flights at IAD.

[Q]: Valium Long-Term Effects. Heavy use of Valium over an extended period of time can have powerful effects on the brain and body. These effects can be permanent and, in some cases, life-threatening. The long-term effects of Valium include: Memory loss. Hallucinations. Difficulty breathing. Slowed pulse. Coma. Heart attack. The half-life of Valium is fairly long it can take 20 hours or more for just half of the medication to be eliminated from your system. However, just because it's not completely eliminated after 20 hours doesn't mean it's still effective. Valium Long-Term Effects Heavy use of Valium over an extended period of time can have powerful effects on the brain and body. These effects can be permanent and, in some cases, life-threatening. So you would actually have to account for the elimination of N-desmethyldiazepam. It takes 5.5 x elimination half lives (hours) for a medicine to be cleared from your system, therefore Valium or it's active metabolite will be in your system for 550 hours (5.5 x 100hrs) i.e. approximately 23 days. Both temazepam and oxazepam have a modest half-life of 8-9 hours. Due to the long half-life of diazepam it works for a significant period of time. Most of the effects last about 6-8 hours, after that time Valium and its active metabolites continue to exert very subtle and very mild effects that are often unnoticed. Valium affects the levels of gamma-aminobutyric acid (GABA) in the brain, helping to slow down and stop abnormal brain activity. This results in a calming effect, and sometimes feelings of euphoria. It helps reduce anxiety, cause sleepiness, relax muscles, stop seizures, and more. Depends on the strength. A 10mg will kick in around 30 to 60 minutes after ingesting and last about 4-6 hrs. It stays in your system for over 100+ hours, although the effects are gone after 6 hrs. It really took the edge off my fear (40 min in the machine) but there is not easy way to tell when it actually wears off. about 2 hours after i took it a had a nap which turned out to be a pretty deep 2 hour affair :-) when i got up i would say for sure there was nothing left of the Valium... How long a drug stays in your system depends mainly on it's elimination half life. For Valium (diazepam) the initial distribution phase is followed by a prolonged terminal elimination phase (half-life up to 48 hours). The terminal elimination half-life of the active metabolite N-desmethyldiazepam is, on average, 100 hours. Side Effects. When used properly, Valium does not produce the same effects as it does when abused/misused. Valium has side effects with proper use, but these are temporary and should go away after a few standard doses. The Dangers of Valium For 13 years, Valium was the most prescribed drug in America. Query: how long do effects of valium last in the body
[A]:
Most of the effects last about 6-8 hours, after that time Valium.