What is a means of secreting cell products?

What is a means of secreting cell products?

exocytosis. a means of secreting cell products.

Which of the following follows a concentration gradient but requires a carrier protein?

Facilitated Diffusion
3. Facilitated Diffusion. The last form of passive absorption is similar to diffusion in that it follows the concentration gradient (higher concentration to lower concentration). However, it requires a carrier protein to transport the solute across the membrane.

Is the substance being moved along a concentration gradient?

is the substance being moved along (down) a concentration gradient? active transport moves molecules against (up) a concentration gradient. passive transport moves molecules along (down) a concentration gradient. to move against a gradient requires energy.

Which of the following provides for the cellular uptake of solid or large particles from the cell exterior?

Phagocytosis
Phagocytosis is the process by which cells ingest large particles, including other cells, by enclosing the particles in an extension of the cell membrane and budding off a new vesicle. During pinocytosis, cells take in molecules such as water from the extracellular fluid.

Is exocytosis with or against concentration gradient?

Proteins can transport materials against a concentration gradient. Endocytosis and exocytosis transport materials across the membrane in vesicles. If you want to go up to the second floor of the mall, you’re going to need help beating gravity.

Do solutes diffuse with or against their concentration gradient?

Since diffusion moves materials from an area of higher concentration to an area of lower concentration, it is described as moving solutes “down the concentration gradient” (compared with active transport, which often moves material from area of low concentration to area of higher concentration, and therefore referred …

Is osmosis against or with the concentration gradient?

Osmosis occurs according to the concentration gradient of water across the membrane, which is inversely proportional to the concentration of solutes. Osmosis occurs until the concentration gradient of water goes to zero or until the hydrostatic pressure of the water balances the osmotic pressure.

What is driven by a concentration gradient?

In passive transport, particles (e.g. ions or molecules) are transported along the concentration gradient. This means that the particles move from areas of high concentrations to areas of low concentrations. This means that the particles are moved to an area of low concentration to an area of high concentration.

What does it mean to go against the concentration gradient?

To go against the concentration gradient means to go from a low concentration to a high concentration which means you have to use energy to get the task done. Diffusion takes place according to concentration gradient. Is it possible for materials to move against concentration gradient gradient?

Why does active transport move up the concentration gradient?

Active transport because it move up the concentration gradient which requires energy to do so. Where as the passive transport goes down the concentration which does not need energy. What site regulates what goes in and out of the cell?

How does ATP go against the concentration gradient?

Inside, is the opposite, low concentration of hydrogen ions, and high concentrations of sucrose. Cells use ATP to pump a hydrogen ion across the cell membrane, against the concentration gradient, and when the hydrogen ion goes to re-enter, it goes through a Sucrose-proton cotransporter.

How does a substance move from high to low concentration?

The process in which a substance moves from high concentration to low concentration is called diffusion. How do you know when a solution has a high level of concentration? When you measure it against a middle concentrated solution.