I. Passive transport permits the solute to move in elther direclion. II. The net moverment of solute molecules in passive transport occurs down the concentration gradient of the molecule Select one Bolh statements are TRUE Only the first statement is TRUE. Both statements are FALSE Only the second statement is TRUE
Q: True or False _____h. Active transport works against the concentration gradient _____I. Sodium…
A: Transport across the membrane are of two types. These are active transport or passive transport.…
Q: I. Water enters and leaves cells through what process? A. Active transport B. Diffusion C. Osmosis…
A: Introduction Transpiration:- It is the loss of water in the form of water vapor from plants…
Q: The diffusion of water through a semipermeable membrane is called O active transport O…
A: The process of active transport is characterized by the ability of the substances to move to a…
Q: Indicate which of the following involves osmosis by answering yes or no When the bulb of a thistle…
A: Osmosis is a type of diffusion in which water ions or molecules pass freely from a more concentrated…
Q: Two aqueous solutions that differ in solute concentration are placed on either side of a permeable…
A: Osmosis is the diffusion of water, through a selectively permeable membrane. A selectively permeable…
Q: 2. Best description of a semi-permeable membrane in the context of osmosis. A. A membrane that…
A: Osmosis is defined as the movement of solvent molecules from the region of higher concentration to…
Q: Active transport of a substance across a membrane requiresa. a gradient b. the expenditure of ATP c.…
A: Cellular transport is the movement of molecules and ions across the cell membrane. Cells have two…
Q: what does the term dCs/dx mean in the Ficks equation (can be multiple equation) - solute flux…
A: The Fick's diffusion law postulates that the diffusive flux goes from a high-concentration area to a…
Q: The driving force for diffusion is Select one: The dialysis membrane. the membrane transport…
A: Diffusion is the passage of a substance from a high concentration area to a low concentration area…
Q: What condition does the diagram show? movement of water a) The solution on the left side of membrane…
A: As the well known to term that are been stated with respect to the plant loses water, the amount of…
Q: Match the definitions with the words: Direct Diffusion, Facilitated Transport, Active Transport a)…
A: The one primary distinction between faciliated and active transport active transport needs energy,…
Q: The rate of diffusion increases if thea. concentration gradient decreases.b. temperature of a…
A: The process of diffusion is defined as the movement of solutes from its higher concentration to…
Q: Can you please solve this question and the correct letter
A: Cell membranes are composed of phospholipid bilayer, so, the lipid soluble molecules can easily pass…
Q: d) hypertonic
A:
Q: Differentiate osmosis from active transport. requires movement is protein according to channels…
A: The plasma membrane of the cell is selectively permeable. It forms the barrier that blocks the free…
Q: Contrast facilitated diffusion and active transportin relation to energy expenditure and direction…
A: Transport proteins help certain substances that are too large for diffusion to cross the plasma…
Q: Station l: Passive Transport 1. Passive transport = Examples) a. b. Station 2: Active Transport 2.…
A: Lipophobic molecule- These are those molecule which are easily soluble in water they are generally…
Q: compared to bag of 0.9% NaCl are dH20, 0.9% solute, 5% solute, isotonic, hypertonic or…
A: The solution with the higher solute concentration is said to be hypertonic to the other, and the…
Q: If a cell is in an isotonic environment, then a. the cell will gain water and burst. b. no water…
A: The movement of solvent from a region of higher concentration to a region of lower concentration…
Q: The movement of water from an area of higher concentration to an area of lower concentration is…
A: Biological membranes are semipermeable membranes and therefore, not all molecules can freely pass…
Q: If the solute concentration outside the red blood cell is greater, the cell would be in a…
A: Tonicity refers to an extracellular solution's capacity to induce water to migrate into or out of a…
Q: . Define diffusion. Is diffusion a passive or an active process? Explain how solute moves in this…
A: There are two types of processes - active and passive that governs the movement of the particles. In…
Q: Lower concentration concentration of solute More equal concentrations Higher of solute of solute…
A: Osmosis, the automatic passage or distribution of water or other solvents by a waterproof membrane…
Q: In cotransport (indirect active transport) (a) a uniporter moves a solute across a membrane against…
A: Indirect active transport uses the downhill flow of an ion to pump some other molecule or ion…
Q: 1) a) Draw arrows to indicate which direction Na+ vs K+ions will tend to move.(into vsout of the…
A: Hi! Thanks for your question. As you have posted multiple questions and have not mentioned which one…
Q: Movementof water _____________ its concentration gradient is called ________________.a.down;…
A: BASIC INFORMATION TRANSPORT IN PLANTS In plants the minerals are needed for the plants but the…
Q: C. When solute concentration is Hypertonic equal on both sides of a semi- permeable membrane.…
A: "Since you have asked multiple questions, we will solve the first question for you. if you want any…
Q: Compare and contrast passive transport Active Transport both Passive Transpc
A: Because the plasma membrane is selectively permeable to tiny molecules, the cell's internal…
Q: The direction of diffusion of solutes is always:
A: Answer - The movement of all solute particles is down the concentration gradient, from high to low,…
Q: 3. Passive & Active Transport Passive Transport Active Transport Does it use energy? What is the…
A: 3.Active and Passive transport are the two ways through which the molecules can be moved across a…
Q: 18 Which statement is true for active transportation? a) There is a movement of solute against the…
A: Active transportation can be defined as the phenomenon by which substances are transported in and…
Q: Statement 1: The direction of diffusion of a solute across a membrane is determined by its…
A: Diffusion - It is the passive movement of solutes from a region of high concentration to a region of…
Q: ompare and contrast the type of bulk transport
A: Bulk transport is different from other conventional transport mechanisms used by the cell. It is…
Q: Solutes tend to diffuse from a region where they ar_____ concentrated to an adjacent region where…
A:
Q: a. hich section represents fTacilitated alIfTUSiON? b. Explain why or how can you tell? c. Does the…
A: # Here I have solved only A section of the question. Please send questions one by one. Facilitated…
Q: Name at least one similarity and at least one difference between the following (it may help to…
A: Following are the terms which will be discussed in this article in relation to one another.
Q: 2. Active transport must function continuously because__________.a. plasma membranes wear outb. not…
A: Active transport is the mechanism that moves or transports molecules and ions from lower…
Q: Patients who enter the emergency room dehydrated are usually given sterile saline solution…
A: Dehydration It is defined as fluid volume disturbance characterized by excess loss of body fluids…
Q: Water could moves across plasma member through simple diffusion or facilitated diffusion, energy is…
A: Owing to the high osmotic pressure difference between the inside and the outside of the cell, water…
Q: 17. Cell wall shows (a) complete permeability b semi permeabilty (c) differential permeability (d)…
A: Permeability refers to the ease with which molecules cross a particular biological membrane. In…
Q: A. What is the difference between: 1. a. Passive transport- b. Active Transport- 2. a. Facilitated…
A: Active or passive transport is the transport process that is movement of molecules. Membrane…
Q: Distilled water is to the relative ionic concentration inside of the cell. hypotonic O isotonic O…
A: Distill water is a form of water that is completely or 100% pure without any impurities or minerals.
Q: A hypertonic solution outside a cell causes: O net water gain to the cell. net water loss to the…
A: A hypertonic solution is a particular type of solution that has a greater concentration of solutes…
Q: The greater the magnitude of the concentration gradient: a. the more rapid the rate of…
A: Concentration gradient refers to the magnitude of the difference between the concentration of two…
Q: Cells in a hypertonic solution tend to: a. shrink due to water loss b. swell due to water gain c.…
A: A cell is the basic key of life that is capable of performing all the functions of life and also…
Step by step
Solved in 2 steps
- At temperatures that are much lower than a lipid bilayer's melting point, adding cholesterol will most likely the fluidity of the bilayer. O increase O maintain O decreasethe lipid bilayer of a plasma membrane most ranh A) hydrocarbons. B) amino acid. Oose the most correct answer (5 8. Which of the following would likely move through 1.Celi membrane is composed of a bilayer of: 1.Cell membrane is composed of a bilayer or: A) Phospholipids. 9. Which of the following contains hydrolytic enzymes? the lipid bilayer of a plasma membrane most rapidly? B) Steroids. C) Fatty acids. C) Glucose. D) K+. 9. Which of the following contains hydrolytic enzymera A) Lysosome. B) Endoplasmic reticulum C) Mitochondrion. D) Golgi apparatus. D) Triglycerides. 2. All of the following contain amino acids except A) hemoglobin. B) cholesterol. C) antibodies. D) enzymes. 3. What is the chemical reaction mechanism by which cells make polymers from monomers? A) phosphodiester linkages. B) hydrolysis. C) dehydration reactions. D) ionic bonding of monomers T 10. Which one of the following is/are a function of celI membrane proteins? A) Enzymatic activity. B) Signal transduction. C)…Which of these can never cross the lipid bilayer without the help of a transporter or a channel? O CO2 O 02 O water O Na+ O all of the above can diffuse through the lipid bilayer without transporter proteins or channels
- Which of the following statements about lipids in membranes is FALSE? O Membrane curvature may be controlled by the size of head groups in lipids O Lipids can move laterally within a membrane leaflet O Liposomes are synthesized membrane structures used to study membranes in the laboratory Flexion is when the hydrophobic tails of lipids swing and cross each other O Lipids flip-flop from the inner leaflet to the outer leaflet spontaneouslyWhat major type of molecule contributes to the formation of the cell membrane and what biochemical properties of this molecule promotes the formation of the membrane? What effect allows this type of molecule to come together to form a bilayer and explain how the effect works? A▾ B I I e 2 2The membrane is constantly moving mainly due to what types of lipid movement? A. Lateral diffusion B. Flexion C. Rotation D. Flip-flop OBC All of these are correct AB O ABC
- e movement of sucrose molecules across the plasma membrane takes place through ect one: a. Phospholipid monolayer b. Phospholipid embedded cholesterol c. Phospholipid embedded proteins d. Phospholipid bilayer e. Phospholipid embedded glycoproteins Time left a1. Explain why phosphoglycerides are found in lipid bilayer 2. Enumerate and describe the mechanisms of transport across a membraneIn the cell membrane bilayer: most of the lipids have an inverted cone shape (headgroup region wider than the tail region on a lipid). 3 of these 4 responses are correct the hydrophobic lipid region is situated between the hydrophilic lipid regions. negatively-charged lipids are located mainly in the outer leaflet of the bilayer. O cholesterol always works to make membranes more fluid, regardless of the circumstances.
- 1. Flip-Flop is considered the LEAST likely to happen of the four membrane movements because it is the LEAST energetically favorable movement of a single fatty acid. For this question DRAW the action of a one phopholipid being flipped from outside facing plasma membrane, to the inside facing plasma membrane. On your drawing put an X near areas of the phospholipids that do NOT want to interact during this process.6) Pore-forming toxins are a class of protein-based toxic polymers that result in the formation of large multi-protein channels that allow the free flow of substrates and liquid in and out of a cell or organelle. Research shows that these can attach to the outer mitochondrial membrane, or on the thylakoid membranes Hollyal of chloroplasts. Meman Extracelular binding space Proteiniciati Inactive soluble T obare Lipid Activation Active P Assembly Membrane tion Pelit K Partially formed pome Nunta Inson Large molecule A Protein What would the possible consequences be if this pore-forming toxin attached to the mitochondrial outer membrane or the thylakoid membrane? Explain why. ATP Nature Reviews Microbiology3. Identify the component parts of the plasma membrane shown in Figure 1.770 outside cell cytosol Figure 1 (b) NEL good as e oc (d) (e) 88 f $8 88/0008 Booo %1000 d lipid bilayer C STUDY Complex At first a confusing and relab help you parts. Afte the diagra complica 2.2 Membrane Struc