0
Simple Diffusion - Lipid soluble molecules diffuse across the plasma membrane of a cell, uses no ATP energy and only occurs down a concentration gradient.
Facilitated Diffusion - Molecules use the aid of proteins scattered throughout the plasma membrane to help them diffuse into or out of a cell, uses no ATP energy and only occurs down a concentration gradient.
Co-transport - A molecule such as glucose may have a lower concentration inside a cell than outside so it attaches to a carrier protein, as does a molecule that is higher in concentration inside than outside, a sodium ion for example. The glucose is pulled through the membrane because of its concentration gradient, as this happens the sodium ion is also pulled through. This uses no ATP energy but only occurs if a molecule can move down a concentration gradient (on an exam paper you would have to explain that the sodium moves against a concentration gradient to get full marks).
Active transport - A molecule uses the aid of carrier proteins to diffuse against a concentration gradient, this does use ATP energy. The ATP is needed to make the carrier protein change shape. This only occurs against a concentration gradient.
What else can I help you with?
What kinds of transport were there in the world between 1905 and 1915?
During that time period, common forms of transport included trains, automobiles, bicycles, and horse-drawn carriages. Passenger steamships and early airplanes also began to emerge as modes of transportation, although they were not as widespread as other forms.
What are the forms of passive transport?
Endocytosis and exocytosis
Which organelle forms a membranous system of channels for intracellular transport?
The endoplasmic reticulum (ER) forms a membranous system of channels for intracellular transport. It plays a crucial role in protein and lipid synthesis and transport within the cell.
What are the most common forms of pdas?
The most common forms of PDAs are Smartphones, palm PDAs and pocket PCs.
What are five transport mechanism where by metabolites nutrient or ions cross the cell membrane?
There are many forms of membrane and cell transport. These are the basic transport mechanisms in a prokaryotic animal cell. Facilitated Diffusion Osmosis Diffusion Exocytosis (this takes two forms; phagocytosis and pinocytosis depending on whether the cell is "eating" or "drinking") Endocytosis Carrier Molecules/Channel Proteins
What transport was used in the goldfields 1851?
The most common forms of transport used were horse, horse and cart but most of the time is was just plain old walking.
Are endocytosis and exocytosis forms of active or passive transport?
Endocytosis and exocytosis are forms of active transport.
3 other common word form for bring?
Three other common word forms of 'bring': brings, bringing,and brought.
What are the forms of transport?
Endocytosis and exocytosis
What transport forms of sugars are commonly made by linking two together to form a disaccharide?
Common transport forms of sugars that are commonly made by linking two together to form a disaccharide include sucrose (glucose + fructose), lactose (glucose + galactose), and maltose (glucose + glucose).
What kinds of transport were there in the world between 1905 and 1915?
During that time period, common forms of transport included trains, automobiles, bicycles, and horse-drawn carriages. Passenger steamships and early airplanes also began to emerge as modes of transportation, although they were not as widespread as other forms.
What transport was common when transport was made?
It depends on the type of transport that was made.
What are the forms of passive transport?
Endocytosis and exocytosis
What are passive forms of transport?
Endocytosis and exocytosis
What does active transport and passive transport have in common?
nothing
Are endocytosis and exocytosis forms of transport that are considered active or passive?
Endocytosis and exocytosis are forms of transport that are considered active, as they require energy to move substances into and out of the cell.
What does a passive transport and an active transport have in common?
Movement of particles .
