Question

Make the assumption that a cell has a 10% salt concentration inside its cytoplasm. Why are...

Make the assumption that a cell has a 10% salt concentration inside its cytoplasm. Why are carrier proteins required for the passage of some material in and out of the cell?

Science   Biology   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Carrier proteins stays in the membrane and do transport of ions, molecules by either facilitated diffusion(down the concentration gradient) and active transport. They are of 2 types symporter and antiporter. Carrier proteins undergo conformational changes while transport of ions or molecules. It performs both the functions means it transports the ions/molecule inside the cell as well as outside the cell as it is completely embedded in the cell membrane. Carrier proteins have receptors to bind with the ions/molecules. These proteins transport them from low concentration to high concentration of particles. For active transport carrier proteins need energy in the form of ATP.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A negatively charged amino acid is taken up into a human cell. The concentration inside the...
A negatively charged amino acid is taken up into a human cell. The concentration inside the cytoplasm is higher than outside the cell. What is a likely mechanism for the transport over the plasma membrane? a. transport via a channel using the membrane potential as driving force b. carrier mediated symport with protons c. carrier mediated symport with sodium ions
1) The "cytosol" of a eukaryotic cell is different from its "cytoplasm" because ____________________. cytoplasm includes...
1) The "cytosol" of a eukaryotic cell is different from its "cytoplasm" because ____________________. cytoplasm includes the organelles and cytosol does not cytosol includes the organelles and cytoplasm does not cytosol includes most of the components of the endomembrane system and cytoplasm does not cytosol includes the cytoskeleton and cytoplasm does not 2) Chaperone proteins ____________________. force certain parts of polypeptides to form domains facilitate correct polypeptide folding by permitting some interactions and blocking others determine the tertiary structure that...
During active transport in the neuron, the outside of the cell is _________________ and the inside...
During active transport in the neuron, the outside of the cell is _________________ and the inside is _______________. positive, negative more positive, less positive more negative, less negative negative, positive In active transport, _____________ provides the energy to move molecules against their concentration gradient. nucleus potassium sodium adenosine triphosphate ________________ proteins can change shape when moving substances across the membrane. Proteins that can be open or closed, based on different conditions, are called ___________. bypass proteins channel proteins selective proteins...
44) Which events in cellular respiration produce the most ATP? 45) Cell cytoplasm is primarily composed...
44) Which events in cellular respiration produce the most ATP? 45) Cell cytoplasm is primarily composed of ___________ 47) Which phase of mitosis involves the separation of the chromatids? 48) The pocket-like structure in the gastrula is called the __________ 49) Which form of speciation is the result of an some kind of geographic barrier? 50) Which type of organic molecule is associated with easter bonds? 53) When two species evolve to be morphologically/phisically less similar, it is called __________...
Name multiple reasons why a cell has a negative charge on the inside.
Name multiple reasons why a cell has a negative charge on the inside.
Two tanks contain 50L of brine each. The first one has a salt concentration of 10...
Two tanks contain 50L of brine each. The first one has a salt concentration of 10 gr/L while the second one has a salt concentration of 20 gr/L. A solution with a salt concentration of 2 gr/L is pumped into the first tank at a rate of 2 L/s and then spills from a hole into the second tank at a rate of 2 L/s. The solution then spills again from a hole in the second tank at a rate...
AgCl is a sparingly soluble salt with Ksp = 1.8×10−10. Which change below will make a...
AgCl is a sparingly soluble salt with Ksp = 1.8×10−10. Which change below will make a saturated solution of AgCl in water more soluble? A)Add in some HCl, becuase it is a strong acid. B)Add in some solid NaBr because AgBr has Ksp = 5.0×10−13 . C)Add in some solid CuNO3 because CuCl has Ksp = 1.9×10−7 . D)Add in some NaOH becuase it is a strong base. E)None of the above
Some cell walls in the human body have a layer of negative charge on the inside...
Some cell walls in the human body have a layer of negative charge on the inside surface and a layer of positive charge of equal magnitude on the outside surface. Suppose that the charge density on either surface is ± 0.50×10−3 C/m2, the cell wall is 5.1 nm thick, and the cell-wall material is air. Notes about Problem 18.77 and a Hint for Part D: The cell wall/membrane creates a separation of charge between the inside and outside of a...
Cell biology 1. Briefly describe what occurs in the four phases of the cell cycle (G1,...
Cell biology 1. Briefly describe what occurs in the four phases of the cell cycle (G1, S, G2, M). 2. How does cyclin regulate cyclin-dependent kinases (Cdks)? Why do Cdks require cyclin? 3. Mitogens are involved in cell signaling pathways which promote cell division by the production of cyclin. Using the figure 18-14 from your book (which is on the right), answer whether the expression of genes required for cell proliferation will be increased or decreased under the following scenarios....
A compound in the atmosphere has a residence time of 10 yr, and its concentration in...
A compound in the atmosphere has a residence time of 10 yr, and its concentration in the atmosphere is steady at 2 ppm (volume). The total mass of the atmosphere is 5x1018 kg. The molecular weight of the compound is 16 g/mol and the molecular weight of air is 29 g/mol. The emissions of this compound to the atmosphere are most nearly: Answer: 20x106 g/s
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT