What is the significance of the protein-lined pits? O Protein attracts other proteins needed for ATP synthesis within the cell. Protein-lined pits are able to transport one molecule at a time down the concentration gradient within the cell. The polarity of proteins allows other polar molecules to attach and be transported in the cell by transport channels. Receptors within the pits allow ligands to fuse and be transported into the cell by endocytosis.

Q: Protein transport across membranes in the eukaryotic cell can take all of the following forms…

A: Transport always takes place through pores because the lipid bilayer does not allow the movement of…

Q: The phosphate transport system in bacteria imports phosphate into the cell even when the…

A: In the small intestine, phosphate is absorbed via at least two separate mechanisms: paracellular…

Q: Vesicles forming at the plasma membrane, or at the trans face of the Golgi, and destined only to…

A: In biology,  a vesicle is a structure within or outside a cell, consisting of liquid or cytoplasm…

Q: Suppose you discover a new bacterium that has a concentration of 15 nM Cu2+ inside the cell, and 1…

A: Diffusion is the movement of silute particles or molecules from the region of higher concentration…

Q: An individual transport vesicle will fuse with only one type of membrane is enclosed by a membrane…

A: The ER, Golgi apparatus, and lysosomes all are part of a transmembrane system, but they're not…

Q: What is the correct order of permeability for the following four substances across a pure…

A: The plasma membrane controls the passage of substances into and out of cells by being selectively…

Q: Choose one of the following scenarios. Describe the scenario. Describe the chain of events terms of…

A: Tonicity  It is the capability of cell to loose of gain water of the cell. The movement of water…

Q: In osmosis, water moves from an area of low solute concentration (high water concentration) to an…

A: Osmosis is the process of movement of solvents through a semipermeable membrane from a lower solute…

Q: Here's one experimental approach to finding out how rapidly a membrane transporter can move its…

A: Glycolysis is the first step of cellular respiration in both prokaryotes and eukaryotes and involves…

Q: What does hypertonic mean? * Your answer You are trying to see if a channel transports a specific…

A: The plasma membrane of the cell regulates the movement of different molecules in and out of the cell…

Q: Are peripheral proteins the only class of membrane protein associated with one leaf? What about…

A: Integral monotopic proteins are integral membrane proteins that are connected to one side of the…

Q: Which of the following is FALSE regarding membrane transport? O A cell can add proteins into its…

A: In cell biology, membrane transport refers to the accumulation of processes that control the passage…

Q: Yeast are unicellular microorganisms that use sugar as a food source to produce energy for growth.…

A: Ans-  The passive transport process creates a channel that allows for hydrogen ions and sugar…

Q: What Osmotic conditions would be favored by Plant and Animal cells?  Why? Explain what is meant by…

A: Since we only answer one question at a time, we’ll answer the first one. Please resubmit the…

Q: Which two processes must be balanced (one process exactly equal to the other) in order to maintain a…

A: The cell membrane is the biological membrane that separates the interior of the cell from the…

Q: This graph shows facilitated diffusion of a compound across a cytoplasmic membrane and into a cell.…

A: Diffusion is a process of passive transport in which molecules move from an area of higher…

Q: Some drugs can prevent the formation of new lysosomes. However, a cell would continue to make…

A: The hydrolytic enzymes (acid hydrolases) and membrane proteins are synthesized in the rough…

Q: Which of the following is most likely to enter the cell via endocytosis when moving along the…

A: Membrane transport mechanism is a mechanism which evaluates how molecules/ substances are passed…

Q: A cell with a K+1 concentration of 0.3 eq/L, and a Na+1 concentration of 0.1 mol/L is placed into a…

A: The transport of molecules and ions across a cell membrane is an essential process for the cell to…

Q: The comparison of the simple diffusion, facilitated diffusion and active transport are shown in the…

A: Diffusion is the movement of molecules from a region of higher concentration to a region of lower…

Q: Draw a lipid bilayer, and focus on three lipids that are on the same side of the membrane. Color in…

A: Structure of Lipid Bilayer1. It Is made of lipids (fat) and protein molecules.2. The lipid bilayer…

Q: The salt content within the cytosol of marine mammals is lower than the water that they consume from…

A: Marine and aquatic animals like Pinnipeds ( sea lions, seals, and walruses) and cetaceans (dolphins…

Q: Describe the process of translation of a protein destined for exocytosis. How are secretory proteins…

A: Proteins can be referred to as amino acids’ polymer and are responsible for performing several…

Q: Which of the following movements across a cell membrane will likely be least affected if the…

A: Cell membranes are double-layered structures made up of phospholipids and they are selectively…

Q: Using the experimental results, describe the pathway that secretary proteins take from their…

A: Proteins are synthesized through the interaction of mRNA and tRNA which interact with each other In…

Q: Membranes are effective barriers preventing the crossing of both polar and nonpolar molecules from…

A: The structure and function of  a cell is dependent on membranes. These membranes separate the…

Q: A plant cell placed in a hypertonic solution will: O remain unchanged. O swell slightly. O undergo…

A: The three types of solutions that cause water to move in and out of the cell are- Hypotonic,…

Q: Can these molecules cross into a cell? If yes, with what transport type?  Molecule 1 is HUGE…

A: The transportation of molecules in and out of the cell depends on there concentration gradient and…

Q: The cytoplasm of a certain cell is composed of a solution that is 98% water, 2% solutes. Consider…

A: Introduction  Tonicity is a measure of the relative concentration of solutes dissolved in two…

Q: Why do most molecules require the assistance of proteins to cross the cellular membrane? What…

A: The cellular membrane is a semi-permeable lipid bilayer. The lipids found in the membrane are…

Q: The plasma membrane of P. bursaria is about 56%56% protein and 40%40% phospholipid by weight. How…

A: Lipoproteins are complex lipids made up of cholesteryl ester and triacylglycerol encased in an…

Q: Q1: If endocytosis itself is nonspecific, how does receptor-mediated endocytosis bring only certain…

A: Pinocytosis is more frequent among eukaryotic cells than phagocytosis, which has only specialized…

Q: Match these cell transport mechanisms to their correct definitions: [ Choose ] Movement induced by…

A: The cell membrane is impermeable to hydrophilic and charged molecules. Therefore, there are…

Q: Which of the following statements about the microtubule structure is FALSE? O In a single…

A: Every microtubule comprises two subunits, α-tubulin and β-tubulin, which are the tubulin proteins…

Q: Why do cancer cells treated with vitamin E succinate appear to be more vulnerable to rupture of…

A: A normal cell undergoes regulated division, differentiation and apoptosis or programmed cell…

Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.