Name two ways cells are able to move molecules against their concentration gradient. What is this...

Name two ways cells are able to move molecules against their concentration gradient. What is this type of transport called and is it possible to move molecules against their concentration gradient without using ATP?

Expert Solution

molecules can move across the membrane against the concentration gradient via

i) primary active transport: protein pumps in the membrane pump the molecules against the concentration gradient using the energy of ATP.

ii) secondary active transport: secondary active transport uses the energy of concentration gradient of a molecule, one molecule is transported down the concentration gradient, using the energy released via this transport a molecule is transported against the concentration gradient.

the concentration gradient of the molecule is generated by the action of a primary active transporter which uses the energy of ATP to pump molecules against the concentration gradient, so ATP is required in secondary active transport also.

the type of transport is called active transport, ATP is required for the transport of molecules against the concentration gradient, ATP is directly used in primary active transport, and secondary active transport also requires ATP to create concentration gradient of a molecule.

it is not possible to move molecules against their concentration gradient without using ATP.

gladiator answered 1 year ago

In passive processes, substances move _ their concentration gradient from a concentration to a ____,...

In passive processes, substances move _________ their concentration gradient from a ______ concentration to a __________, until they reach equilibrium. Substances move across membranes based on what two chemical properties as discussed in class? If the answer to #2 above prevents a substance from crossing the membrane, what may allow it to cross? What kind of particles cross the membrane in simple diffusion?________________________. What two dissolved gasses diffuse through the cell membrane? _________________________ Facilitated Diffusion relies on ___________ and _________...

Can facilitated diffusion sometimes move against their concentration gradients?

Name two ways a person with a developmental delay could be discriminated against in society and...

Name two ways a person with a developmental delay could be discriminated against in society and how might you go about supporting this person to understand their rights around these issues?

the process that inolves the moving of one substance against its concentration gradient by using energy...

the process that inolves the moving of one substance against its concentration gradient by using energy from a second substance moving down its concentration gradient is known as?

Why is osmoregulation an important process for animal cells? If the concentration of water molecules is...

Why is osmoregulation an important process for animal cells? If the concentration of water molecules is greater outside a cell, then the solution is ______ to the cell

1) Describe passive transport. 2) Define concentration gradient, electrical gradient, and electrochemical gradient. 3) What factors...

1) Describe passive transport. 2) Define concentration gradient, electrical gradient, and electrochemical gradient. 3) What factors play a role in the rate of diffusion? 4) Explain the difference between simple diffusion and facilitated diffusion. 5) Which type of molecules move via facilitated diffusion? 6) Why is active transport necessary? 7) What role does the Na-K pump play in active transport? 8) How is primary active transport different from secondary active transport? 9) What is the mechanism for glucose transport across...

1a. If two solutions are _________ relative to each other, a concentration gradient would not exist....

1a. If two solutions are _________ relative to each other, a concentration gradient would not exist. hypertonic hypotonic isotonic turgid 1b. A pouch with a selectively permeable membrane containing a salt solution is immersed in a dish of freshwater. The membrane is impermeable to salt. Which way will the water move? The water moves out of the pot1ch. The water moves into the pouch. The water does not move at all. There is insufficient information to answer this question. 1c.If...

Name two specific receptors on B cells and T cells?

What would happen if at rest, there was no concentration gradient for Na+ or K+? You...

What would happen if at rest, there was no concentration gradient for Na+ or K+? You have a muscular dysfunction that lacks T-tubules. How might this affect muscle contraction? You have a muscular dysfunction that lacks sarcoplasmic reticulum. How might this affect muscle contraction? You have a muscular dysfunction that lacks voltage-gated channels. How might this affect muscle contraction? You have a muscular dysfunction that lacks chemically-gated channels. How might this affect muscle contraction? If tropomyosin is never moved off actin, what would be...

a. What is/are the name(s) of the functional group(s) that contain oxygen in the two molecules...

a. What is/are the name(s) of the functional group(s) that contain oxygen in the two molecules we are using in this lab (ethyl acetate and butyl acetate)? b. Define “boiling point”. c. If Compound A has a higher boiling point than Compound B, how do their vapor pressures compare? Choose all of the correct answers among: “A is higher than B”, “B is higher than A”, “A and B are about the same”, “depends on the atmospheric pressure”, or “depends...

Question