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What is the process that requires the use of energy to move materials across a membrane?
Active transport is the process that requires the use of energy to move materials across a membrane. This process involves the movement of molecules against their concentration gradient, requiring energy input from the cell.
Materials can be moved from a low concentration to a high concentration through?
active transport processes like primary active transport or secondary active transport, which require energy to move molecules against their concentration gradient. This can involve the use of transport proteins or ion pumps in the cell membrane.
What is it called when the movement of materials through a cell membrane without using the cells energy?
Passive transport does not use energy to pass through a cell membrane. active transport uses energy to pass through a cell membrane.
What are 2 situations which active transport would be required?
Active transport is required in situations where molecules need to move against their concentration gradient, such as in the absorption of nutrients in the intestines or the reabsorption of ions in the kidney tubules. Additionally, active transport is necessary for the maintenance of electrochemical gradients, like the pumping of sodium and potassium ions by the sodium-potassium pump in nerve cells.
Does active transport require a transport protein?
Yes, active transport requires transport proteins to move molecules against their concentration gradient, requiring energy in the form of ATP. These transport proteins facilitate the movement of specific molecules across the cell membrane.
How do laplanders use skis?
Laplanders use skis and follow their reindeer herds
What name are the Laplanders often called?
The Laplanders are often called Lappish. These people come from the northern part of Norway. They have a language of their own.
What people live at the Arctic Tundra?
Eskimoes, Laplanders
What are the people called that live in the tundra?
Canadians, Laplanders
Where Do Laplanders live?
People of the extreme north of scandinavia.
What animal is herdedby laps?
The Reindeer is herded by Laps (Laplanders).
What are the people called that live in the arctic tundra?
Canadians, Laplanders
Where can I find cute laplanders?
At A store called Spencers or spencersonline.com
What are people that live in Lapland called?
they are called Laplanders or Norwegians
What are the people that live in the Arctic Circle called that starts with L?
Laplanders
Do Laplanders live a simple life?
Yes they do but it can be pretty hard at times
Do humans eat reindeer?
Yes, some do, especially Laplanders in Finland.
