Q: 3. Identify the following structures: A, Is this an animal cell or plant cell? a.
A: A cell is the basic structural and functional key of life. A cell has multiple organelles that carry…
Q: 3. Explain the fluid mosaic model of a cell membrane, use a diagram to explain your answer. Then…
A: Plasma membrane is a bilayer of lipids. Plasma membrane provides protection and acts as a…
Q: 10-Unlike diffusion and osmosis, filtration depend on a-- partition X A-Concentration gradient…
A: Filtration is another method of passing material through a cell membrane that is done passively.…
Q: 2. Inflating a balloon can mimic water entering a cell by osmosis. a. What does the skin of the…
A: The osmosis is the movement of water (solvent) from higher water potential area to the lower water…
Q: 4) A cell from a human heart is placed in a solution containing 90% water. The cell itself has a…
A: Osmosis is the process of movement of water molecules from the region of higher water concentration…
Q: 1. Which of these structures surround cells? A. cell wall and nucleus B. cell membrane and cell wall…
A: There are three parts of a cell: the cell membrane, the nucleus, and, between the two, the…
Q: 3 .all of the following about endoplasmic reticulum is true except; A, Consists of two parts, rough…
A: The endoplasmic reticulum is a membrane bounding organelle that helps to generate power for cellular…
Q: When an animal cell is placed on an isotonic solution, water molecules will A) Move out of the…
A: An isotonic solution has the same osmolarity (concentration of solutes) as another solution. Water…
Q: Seawater is hypertonic to the cytoplasm in vertebrate cells and in plant cells. It a red blood cell…
A: Hypertonic solution A solution is known as hypertonic solution when the concentration of solute is…
Q: 7. Use what you know about blood cells, tonicity, osmosis, and diffusion to explain why an IV drip…
A: Normal saline is usually 0.9%. This means there is 0.9G of salt (NaCl) per 100 ml of solution.…
Q: I. Passive transport permits the solute to move in elther direclion. II. The net moverment of solute…
A: The molecules and other nutrients are transported across the cell membrane by various mechanisms ,…
Q: (2) Describe the structure of our cell membranes (fluid mosaic model..).
A: The cell membrane is basically a biological membrane that isolates the inside of all cells from the…
Q: Explain the steps involved in the transport of sodium ions and potassium ions across a plasma…
A: Introduction :- sodium potassium ATPase is a protein pump found in neurons' cell membranes (and…
Q: 3. The diagram to the right depicts a cell submerged in a solution. The cell membrane is permeable…
A: Movement of solvents in solution from higher concentration to lower concentration through…
Q: (3) Explain the passive processes of simple and facilitated diffusion.
A: Diffusion is the movement of water particles from the region of higher to lower concentration. In…
Q: 1. The membrane of the egg is said to be semipermeable. What does semi permeable mean? Which…
A: Selectively permeable, are those membrane which are permeable to only certain molecules/solutes and…
Q: 1. What sort of environment (hypertonic, isotonic, hypotonic) does consuming excessive amounts of…
A: The movement of solvent from a region of higher concentration to a region of lower concentration…
Q: 1. adjacent cells. a. Gap junctions prevent fluid from leaking between
A: Cell junctions are a type of cellular structure that contains multiprotein complexes that allow two…
Q: 10. The diagrams below represent two cells, X and Y. * -A B C Cell X Cell Y Identify one process…
A:
Q: 7. How do you explain the volume of liquid remaining when the egg was removed from the 1 cup syrup…
A: Osmosis is the process of diffusion of water or other solvents from the region of higher water…
Q: (4) Explain the passive process of osmosis.
A: Passive process The process that not required any consumption of energy giving molecules like ATP.
Q: 1. Multicellular organisms use cell division to A. grow in size B. help organs grow -(LT#1) C.…
A: The correct multiple choice is given below;
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: what are three ways for materials to move in and out of cells
A: The material moves out or inside the cells via osmosis, diffusion, and active transport.
Q: 1. Complete the following table by labelling the correct parts of a cell membrane. 2. Provide the…
A: Plasma membrane is the outer boundary of the cell. It is selective permeable in nature that is it…
Q: 9. The cilia a. are microfilaments b .Are microtubules c. Presents in respiratory cells d. paralysed…
A: Introduction: Cilia are the hair like projections on the outer surface of the epithelial cells.
Q: A red blood cell is placed in a solution that is .85% solute. a. It depends upon the temperature O…
A: Hypertonic solution : when solute concentration is higher than another solution and less water…
Q: 1. Illustrate the structure of the cell membrane. Include all important molecules and describe what…
A: A cell is defined as the smallest unit of a living organism which is the basic structural,…
Q: Comment on lipid to protein ratio in the membrane of molecules that transport insoluble substances…
A: The basic structure of the membrane is provided by the lipid bilayer. However, membrane proteins…
Q: 2. Imagine that you have given blood, but a sample of your red blood cells is accidentally stored in…
A: Red blood cells mean RBCs are responsible for the red color of blood.RBC is placed in saline water…
Q: 10. When a solute is added to the vacuole of cell - Select one: a. the osmotic pressure of the…
A: A vacuole is one of the membrane-bound organelle. They are a kind of a vesicle. Vacuoles are made of…
Q: 7. SOLUTE EGG WATER MEMBRANE Figure 1. Consider figure 1. Predict how water will move across the…
A: Given: Egg with the membrane. Placed in water Solute in the egg
Q: 3. Explain the movement of indirect protein transport; where are the proteins made, WHere Jie they…
A: Mechanical protein digestion begins in the mouth and progresses to the stomach and small intestine.…
Q: 6. Which are responsible for the template in the synthesis of proteins which in turn control the…
A: The protein synthesis takes place in the cytoplasm of the cell. The protein synthesis activity and…
Q: If an animal cell is placed into an environment in which the solute concentration outside the cell…
A: Osmosis is the process of movement of solvent from higher concentration to lower concentration…
Q: 17- can only transfer the molecules or ions with great It specifically binds to molecule that are…
A: Transportation is the process of movement of molecules across plasma membrane inside or outside the…
Q: 4 Why would a cell waht fo aggregate ions on one cida cell membrane? 6. Why would a cell want to…
A: Cell membrane is phospholipid bilayer. It keeps the organelles within the cell and control the…
Q: (5) Explain the active process of bulk transport - exocytosis vs endocytosis.
A: Exocytosis means transport from inside of the cell to extracellular space. For exocytosis, the…
Q: 8. Which statement(s) are correct. A. All bacteria have cell walls. B. All fungi have chitin in…
A: The cell wall is the layer located outside the cell membrane of the cell. It functions as a…
Q: 0)You observe a cell in a solution swelling until it bursts. You have seen an instance of osmosis in
A: Osmosis is the movement of solvent molecules through a semipermeable membrane. This requires…
Q: There is a 2M concentration of molecule X inside the cell, whereas there is a 0.4M concentration of…
A: The behavior of cells with regard to water movement depends on the surrounding solution.A…
Q: Explain what would occur to a bacterial cell placed in a salt concentration of 10%, that normally…
A: Explain what would occur to a bacterial cell placed in a salt concentration of 10%, that normally…
Q: We discussed 3 "directions of movement" categories a transporter can move a molecule (symport,…
A: When two molecules are transferred together in same direction is called symport. When two molecules…
Q: 0/ Study the diagram below and choose which cell will experience the fastest rate of osmosis. Note:…
A: Osmosis occur when two medium seperated by a semipermiable membrane then solvent of higher…
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: If two solutions with concentrations of 0.2 M sugar and 0.4 M sugar respectively are separated by a…
A: Dilute solution are solution having less solute while concentrated solution has more solute. So, the…
Q: 3. Predict what will happen to the cell below when it is put into each of the three solutions. Fill…
A: A hypertonic solution is a particular type of solution that has a greater concentration of solutes…
Q: 5- The hydrolysis of ATP is achieved to transport certain sub, this is called: a- Secondary…
A: Introduction :- ATP, or adenosine triphosphate, is a chemical that transports energy within cells.…
Q: 6- One of the following is an example about the secondary active transport: a- Glucose/ Na* C- H/k…
A: Active transport is used to transport materials with the help of energy against the concentration…
Step by step
Solved in 2 steps
- 8. Which of the following ion transport functions must be carried out by a pump? a. transport of Na+ from the extracellular space to the cytosol b. transport of glucose from the extracellular space to the cytosol c. transport of K+ from the cytosol to the extracellular space d. transport of Na+ from the cytosol to the nucleus e. transport of Na+ from the cytosol to the extracellular space.Test Your Understanding 7.In cotransport (indirect active transport) (a) a uniporter moves a solute across a membrane against its concentration gradient (b) the move of one solute down its concentration gradient provides energy for transport of some other solute up its concentration gradient (c) a channel protein moves ions by facilitated diffusion (d) osmosis powers the movement of ions against their concentration gradient (e) sodium is directly transported in one direction, and potassium is indirectly transported in the same direction33. Which statements concerning passive and active transport are correct? A. Both passive and active transport requires cell energy B. Passive requires cell energy while active transport does not C. Active transport requires cell energy while passive does not D. Neither passive nor active transport requires cell energy
- Determine the type of transport. Here are your options:Simple diffusion, facilitated diffusion, osmosis, primary activetransport, secondary active transport1. A hydrophobic molecule is moving through the membrane2. K+ moving against its gradient (low to high) through the sodiumpotassium pump3. Water moving through the cell membrane4. A solute moving down its gradient through a carrier proteinUniporters and ion channels support facilitated transport across cellular membranes. Although both are examples of facilitated transport, the rates of ion movement via an ion channel are roughly 104 - to 105 -fold faster than the rates of molecule movement via a uniporter. What key mechanisticdifference results in this large difference in transport rate?What contribution to free energy (ΔG) determines the direction of transport?6. A carrot, when dried out, becomes soft. There is a way to make it firm and crisp. Explain how and why, using the following guidelines. a) Draw and label a representative cell of the carrot, in its dried state. Be precise in your drawing. b)Describe the type of extracellular solution that is appropriate to add to make the desired change (name and define what type of solution, the net movements of solvent and solutes, etc.). c)Draw a representative cell of the carrot, in its possible state after the change. Represent the movement of water using an arrow to indicate what has happened.
- Which statements are true? Explain why or why not.1 Transport by transporters can be either active orpassive, whereas transport by channels is always passive.2 Transporters saturate at high concentrations ofthe transported molecule when all their binding sites areoccupied; channels, on the other hand, do not bind theions they transport and thus the flux of ions through achannel does not saturate.3 The membrane potential arises from movementsof charge that leave ion concentrations practically unaf-fected, causing only a very slight discrepancy in the num-ber of positive and negative ions on the two sides of themembrane.41. A TRANSPORT MECHANISM ACROSS A MEMBRANE WHERE THE MOVEMENT OF THE SOLUTION IS FROM HIGHER TO LOWER CONCENTRATION UNTIL SUCH TIME THAT EQUILIBRIUM IS ESTABLISHED?A. OSMOSISB. FREE DIFFUSIONC. FACILITATED ABSORPTIOND. ACTIVE TRANSPORTE. DIALYSIS 42. BIOMOLECULES ARE HYDROLYZED FIRST INTO THEIR SIMPLEST FORM BEFORE THEY CAN BE ABSORBED BY THE TISSUES. GLUCOSE ABSORPTION IS THROUGH WHICH OF THE FOLLOWING?A. OSMOSISB. FREE DIFFUSIONC. FACILITATED ABSORPTIOND. ACTIVE TRANSPORTE. DIALYSIS 43. A TRANSPORT MECHANISM THROUGH MEMBRANE WHICH NEEDS ATP?A. OSMOSISB. FREE DIFFUSIONC. FACILITATED ABSORPTIOND. ACTIVE TRANSPORTE. DIALYSIS 44. TRANSPORT MECHANISM ACROSS MEMBRANE OF GASES?A. OSMOSISB. FREE DIFFUSIONC. FACILITATED ABSORPTIOND. ACTIVE TRANSPORTE. DIALYSIS 45. A TRANSPORT MECHANISM IN WHICH SMALLER PARTICLES PASSES THROUGH MEMBRANE BUT NOT THE BIG ONE?A. OSMOSISB. FREE DIFFUSIONC. FACILITATED ABSORPTIOND. ACTIVE TRANSPORTE. DIALYSIS7. Which of the following membrane transport proteins would you expect to be the most selective (although not the most rapid)? the bicarbonate ion channel the glucose carrier protein the potassium ion channel the chloride ion channel the sodium ion channel
- Part I – Introduction to Diffusion and Osmosis1. Define the terms diffusion, passive transport, active transport, and osmosis. In each of your definitions, describe the role of a concentration gradient. 2. Biological membranes are said to be selectively permeable (or semi-permeable). What does this term mean, and how does this affect the way that molecules are able to move through cellular membranes? 3. Which type of molecule is more likely to quickly pass through a cellular membrane via simple diffusion, polar or nonpolar? Why? (You may need to use information from your textbook and class discussions to answer this question.)Q.1 Define the following as applied to electrical activity of cells (i) Action Potential (ii) Membrane Potential (iii) Bioelectrogenesis . Q. 2 (a) State the following laws as applied to Biological fluid in membrane. (i) Vant’ Hoff’s law (ii) Nernst law equation (iii) Stok’s law (b) (i) State the significant of each law in (a) above in biological fluid flow. (ii) Explain briefly why fluid in biological membrane must be in a state of buffer. Q. 3 (i) What is meant by Diffusion as applied in biological membrane. (ii) State three factors that affect diffusion. (iii) Write down mathematical expression of diffusion from Fick’s law. Q. 4 (i) Define Surface tension of a liquid in Biological membrane (ii) Explain briefly the existence of surface tension at the boundary of biological fluids. (iii) State one direct and one indirect method of measuring surface tension.Uniporters and ion channels support facilitated transport across cellular membranes. Although both are examples of facilitated transport, the rates of ion movement via an ion channel are roughly 104- to 105-fold faster than the rates of molecule movement via a uniporter. What key mechanistic difference results in this large difference in transport rate? What contribution to free energy (ΔG) determines the direction of transport?
