How does diffusion limit the size of an organism? How is this counteracted?

Q: under what circumstances does diffusion and bulk flow work most efficiently?

A: Bulk flow ; Bulk flow is long distance transport of entire fluid in same direction. It is driven by…

Q: Why is the process of diffusion insufficient to meet the oxygen requirement of human beings?

A: Diffusion is the process of movement of substances, liquids, or gases from a region of higher…

Q: How does active transport relate to the sodium-potassium pump?

A: Active transport requires energy for the transportation of solutes against the concentration…

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: How do solvents or temperature affect membrane permeability?

A: Biological membranes cover the cells and maintain their interior.

Q: What is the difference between osmosis and diffusion?

A: Osmosis is a process by which molecules of a solvent tend to pass through a semipermeable membrane…

Q: why is the diffusion insufficient to meet the oxygen requirements of multicellular organisms like…

A: Diffusion is the process of movement of substances, liquids, or gases from a region of higher…

Q: What are porins? What role do they play in diffusion?

A: Bacterial outer membrane is found in the gram-negative bacteria and its composition is different…

Q: Sponges are full of holes, jellyfish are big open sacs, and flatworms are flat. How are these…

A: Cellular respiration is the energy-liberating process. It links with the gas exchange. Different…

Q: describe the factors determining diffusion rates?

A: Step 1 Diffusion is the movement of various substances, molecules, and ions of gases, liquids, and…

Q: Why is ATP required for active transport

A:

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: What are the ionic differences between the extracellular and intracellular fluids? • Give the theory…

A:

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: Contrast diffusion and bulk flow?

A: Diffusion and bilk flow: For a molecule to from one place to another, diffusion and bulk flow are…

Q: How does active transport help mediate surface area to volume ratio constraints?

A: Active transport means the transport of molecules across the cell membrane by using energy or…

Q: Explain the function of a fluid-transport/circulatory system.  How does it relate to diffusion?

A: Fluid transport/Circulatory system: The circulatory system is responsible for the transportation of…

Q: How are membrane formed? What composes them?

A: Phospholipid is the main part of the biological membrane and it is an amphipathic molecules that is…

Q: How does the intensity of simple diffusion vary in relation to the concentration gradient of the…

A: * simple diffusion is movement of molecules through a cell membrane without using any channels and…

Q: Why are membranes said to have selective permeability?

A: The cell membrane of most organisms is composed of the phospholipid bilayer. The movement of…

Q: Active tissues generate carbon dioxide, which diffuses out of the tissue into the bloodstream, to be…

A: The main function of the Cardiovascular system is to help in the functions of Transport in the Body.…

Q: What is the movement of cells by some form of self-propulsion called?

A: Cell is the basic structural and functional unit of all living organisms. Cells are classified into…

Q: We get iodine in our diet but over 99% of it ends up in our thyroid gland with very little in the…

A: Iodine can be described as one of the essential minerals required by humans to produce thyroid…

Q: Of the following options, which does NOT increase the rate of diffusion? O larger surface area O…

A: Diffusion is a phenomenon through which the molecules move from higher concentration to lower…

Q: Explain Diffusion Rate Versus Distance?

A: Introduction  Cell is bounded by the membranous structure which don not allow the molecules to pass…

Q: According to Fick’s law of diffusion, which factors determine rate of diffusion?

A: Fick's law of diffusion describes the  movement of solute from the region of higher concentration to…

Q: What is  composition of the outer membrane?

A: The cell membrane is a biological membrane that separates the interior of all cells from the outside…

Q: Where do random motion and active transport occur in cells? How do the velocities of vesicles moving…

A: Vesicles are small structures made up of a lipid bilayer with a liquid inside. These are found…

Q: What determines the direction of any diffusion process?

A: Diffusion is a process of movement of substances from higher concentration to lower concentration.

Q: What is your prediction about the effect of temperature on rate of diffusion?

A: Diffusion is a kind of passive movement. In the process of diffusion, molecules move from higher…

Q: How does the intensity of simple diffusion vary in relation to the concentration gradient of the…

A: Diffusion is defined as the movement of molecules from a high-concentration area to a…

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 do you mean by selectively permeable membrane? Where it is present?

A: The continuous exchange of various substances like ions, water, solutes, and gases is a crucial…

Q: Does active transport move large/charged particles?

A: Active transport is a type of membrane transport that allows the movement of large and polar…

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: What is the process of diffusion, and how does it limit the size of an organism? Can this be…

A: A cell needs resources to function from the extracellular environment. The plasma membrane helps in…

Q: What is Diffusion Rate?

A: Diffusion is a term that is utilised frequently in many domains, including physics (particle…

Q: What are the factors affecting the rate of diffusion?

A: Cell transport refers to the movement of substances across the cell membrane. There are two types of…

Q: Why diffusion occurs in cartilage cells?

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

Q: What factors limited the diffusion of particles through the membrane?

A: The physical and passive process by which movement of solvent or water molecule between two solution…

Q: wo students are discussing the effect of concentration gradient on diffusion. Student A says, “The…

A: Diffusion is the movement of the particles and it usually occurs when there is a difference in the…

Q: How do respiratory adaptations enhance the limits of diffusion?

A: The specific changes which the respiratory system goes through in due to the strain of physical…

Q: What is Passive diffusion in animals?

A: Molecules can move across biological membranes in two ways: active and passive transport. Active…

Q: What is Selective Permeability?

A: Cell membrane (also known as plasma membrane) surrounds the cell cytoplasm. The membrane is…

Q: diffusion and osmosis

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

Q: On what direction of diffusion depends upon?

A: Diffusion is a phenomenon in which molecules move from an area of their higher concentration to the…