Q: Differentiate between unit membrane model and fluid mosaic model of plasma membrane structure?
A: Plasma membrane is a membrane that is found in the cells which acts to separate the contents present…
Q: What is the relationship between concentration gradient and active and passive transport?
A: The concentration gradient is the difference in the concentration of a substance across the…
Q: Does active transport move high to low concentration?
A: Cell transport is the transfer of materials over cell membranes. Cell transport involves passive and…
Q: Does the process of diffusion transport with the concentration or against the concentration…
A: Diffusion is the process of movement of molecules across the membrane (membrane must allow the…
Q: What is the effect of size on diffusion? Concentration? Temperature?
A: Diffusion is the movement of a substance from an area of high concentration to an area of low…
Q: Which line on the attched graph shows simple diffusion and which shows carrier mediated transport?…
A: a
Q: What are cytoskeletal attachment,
A: The cytoskeleton is a structural framework that consists of a protein network and living cell…
Q: How does the sodium- potassium pump present in the cell membrane work? What is the importance of…
A: Plasma membrane is the semipermeable that allows the selective substances to move in and out of the…
Q: -What is diffusion? How is the cell membrane involved in this process? --How are endocytosis and…
A: Introduction: Diffusion is the process of movement of molecules under a concentration gradient. The…
Q: What is the primary difference between passive and active transport in terms of concentration…
A: The primary difference between passive and active transport in terms of concentration gradient is:…
Q: How are the three types of passive transport the similar?
A: Passive transport is a kind of transport that takes place without the use of energy. Here molecules…
Q: How does a concentration gradient affect the direction of diffusion across the plasma membrane?
A: DiffusionIt is a physical process where the net movement of molecules from high concentration to low…
Q: How did the surface area affect diffusion to the center of the cell? What about volume? What about…
A: All the living organisms are made up of cells. These are the functional units of life that have…
Q: If a cell is in interstitial fluid that is hypertonic to its cytosol, how does this affect the cell?…
A: Introduction Salinity refers to the concentration of salt. it plays the major role in the cell…
Q: What effect does increasing extracellular K' have on the net diffusion of K' out of the cell?
A: Depolarization and hyperpolarization happen when particle directs in the layer open or close,…
Q: relationship between cell size and the efficiency of diffusion in a model cell
A: Answer: Cell size is limited by a cell's surface area to volume ratio.A smaller cell is more…
Q: What molecule should cells insert their cell membrane to ensure membrane fluidity?
A: All organisms are made up of cells. Cells can be eukaryotic or prokaryotic. All eukaryotic cells are…
Q: What are the materials transported and the cell membrane structure involved in Primary Active…
A: "Cells" communicate via their own chemical signaling system. Different chemicals, such as hormones…
Q: how are simple diffusion and facilitated diffusion similar? how are they different? how are…
A:
Q: What is the justification for considering gap junctions and plasmodesmata to be functionally…
A: Introduction: Plasmodesmata are living cytoplasmic connections between neighboring plant cells which…
Q: what structure does a bacterial cell produce to resist phagocytosis?
A: Bacteria are a kind of biological cell.They form a large part of prokaryotic microorganisms.They are…
Q: What is the relation between concentration gradient with Active & passive transport? *
A: The cell membrane is also known as the plasma membrane. It is a double layer of lipids and proteins…
Q: why does a cell require both active and passive transport?
A: Active transport is the passage of a substance (salt or ion) from a region of lower concentration to…
Q: How are phagocytosis and pinocytosis similar? How are theydifferent?
A: The plasma membranes of the cells are selectively permeable to various biomolecules and ions. To…
Q: What drives the movement of lipid molecules and proteins within the bilayer? How can such movement…
A: The cell membrane is an important part of a cell as it determines the structure and function of the…
Q: What is the function of porins and where are they located in agram-negative cell wall?
A: Bacteria according to their cell wall structure are divided into two types namely : gram-negative…
Q: What is the purpose of osmosis and diffusion lab ?
A: Osmosis and diffusion both are very important for living organisms. The transportation of different…
Q: What do facilitated diffusion and active transport have in common? What are the differences between…
A: The cell membrane is thin, elastic, flexible covering that holds the cellular contents. It is also…
Q: Why do these nuclear pores have to be larger in diameter than the channels in the cell’s plasma…
A: The cells are the primary unit of life. Based on the number of cells an organism may be prokaryotic…
Q: What are the main structural components of the plasma membrane according to the fluid mosaic model?
A: Definition The plasma membrane is selectively permeable membrane , also known as the cell membrane.…
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: What is meant by the term semi-permeable membrane?
A: Answer: MEMBRANE = This is a outer layer of a cell that surrounds it. It is elastic in nature. This…
Q: What roles do microtubules play in movement by cilia and flagella?
A: Cilia and Flagella are dynamic cytoplasmic filamentous structures that protrude through the cell…
Q: What Is Passive Diffusion?
A: Molecules can move via biological membranes via 2 main methods : active and passive transport.…
Q: What are the specializedstructures that help theadhesion between cells?
A: Epithelial tissue occurs at the exposed external and internal surfaces of the body part and forms a…
Q: What advantages are there to using diffusion as a transport mechanism versus active transport of a…
A: Diffusion, osmosis, facilitated diffusion, and active transport are various physical process by…
Q: Which pathway depicts Facilitated Diffusion?
A: Facilitated diffusion is a mode of diffusion in which the passage od molecules from higher to lower…
Q: Why does the cell wall prevent osmotic lysis but not prevent plasmolysis?
A: Osmotic lysis or cytolysis occurs when a cell bursts due to osmotic imbalance that has caused excess…
Q: WHat do the terms "freely permeable" or "impermeable mean with respect to the cell membrane? What…
A: The cell membrane or the plasma membrane is the outermost covering of the cell. It is a phospholipid…
Q: What is the importance of the concentration gradient in passive transport?
A: Passive transport is a sort of membrane transport that doesn't expect energy to get substances…
Q: Compare and contrast passive diffusion, facilitated diffusion, active transport, and group…
A: Passive DiffusionPassive diffusion is passage across the cell membrane of simple molecules and…
Q: where is Peripheral membrane protein made and how does it transfer to the membrane?
A: As the name suggests, peripheral membrane proteins are the protein molecules present on the outer…
Q: What is the process that requires active transport?
A: The cell membrane of a cell has various tasks to perform. It is responsible for providing the…
Q: How does diffusion limit the size of an organism? How is this counteracted?
A: The movement of molecules over a concentration gradient is referred to as diffusion. It's a crucial…
Q: Why are cells small? What is the benefit of having greater surface-area-to-volume ratios?
A: Cell membranes are integral in the functioning of the cell. They not only maintain the integrity of…
Q: How does receptor- mediated endocytosis differ from phagocytosis?
A: Receptor- mediated Endocytosis - variation of endocytosis that involves the specific binding…
How does the rate of diffusion and surface-to-volume ratio limit cell size?
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Solved in 2 steps
- What molecules primarily make up the membrane of the cell and how do these molecules contribute to the overall function of the cell membrane?Is the outer membrane more selective or lessselective than the cytoplasmic membrane?How life would be if the cel membrane won't allow cell transport in and out of the cell?
