Which of the following is NOT correct: The quantity of ER inside a cell fluctuate depending on cell size ER allowing molecules to move from one part of the cell to another The ER function is act as an internal transport system
Q: A cell is placed in solution and the size of the cell increases the concentration of solution is…
A: Osmosis is the movement of solvent molecules along the concentration gradient through semipermeable…
Q: T F 8. TF 9. TF 10. Concentration gradient refers to the tendency of partic out evenly in an…
A: Concentration gradient occurs when the concentration of particles is higher in one area than…
Q: All the following is function of membrane proteins EXCEPT * Enzymatic activity O Cell-cell contact…
A: Since multiple questions are asked in this question, I will explain the first question for you.…
Q: Which of the following is not found in a prokaryotic cell?a. Plasma membraneb. Ribosomec. Cell…
A: The cells are the primary unit of life. Unicellular organisms lack the cellular organelles like…
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A: Cell membrane or plasma membrane is the outer layer protecting the cell and controlling the entry…
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A: In the resting condition, a cell has high concentration of potassium ions and low concentration of…
Q: Which of the following does not contribute to the selective permeability of a biological membrane?a.…
A: Introduction:- Selective permiability is a property of cellular membrane that only allows certain…
Q: Small amounts of water can move through the plasma membrane of some cells because Water molecules…
A: The plasma membrane is selectively permeable. This means that it allows certain molecules or ions to…
Q: . A solute cannot move into a cell by crossing the phospholipid bilayer of the membrane. It can,…
A: If a Solute cannot move into a cell by crossing the phospholipid bilayer of the membrane.
Q: Sodium-potassium pumps move ___________________ ions _______________ of the cell and…
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A: Cell membrane is made up of lipid bilayer which has proteins embedded in it and these proteins serve…
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A: A cell is defined as the smallest unit of a living organism which is the basic structural,…
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A: The transport of substances across the cell membrane occurs in two ways; active transport and…
Q: Which of the following statements is true? Plasmodesmata are able to only transport small molecules…
A: Cell junctions are structures that help in contact or adhesion or communication between neighbouring…
Q: For each of the drawings, label what kind of environment it is in, how you know this, and what is…
A: This cell is in isotonic solution. When a cell is submerged in an isotonic solution, there is no…
Q: The surface areas to volume ratio determines how efficiently a cell exchanges material with its…
A: The surface areas to volume ratio determines how efficiently a cell exchanges material with its…
Q: Cell size is limited by: The number of proteins within the plasma membrane The size of the…
A: The cell is the smallest structural and functional unit of the organism that contain different cell…
Q: number of transport proteins (pores) on a cell and their size can help the cell to control which…
A: Transport proteins are doors to entry to cell. They act as a passage for substances to pass across…
Q: Transmembrane proteins DO NOT transport oxygen or carbon dioxide across the membrane provide…
A: A transmembrane protein is an integral membrane protein is distributed throughout the entire region…
Q: An animal cell is placed into a solution that contains a higher concentration of solute than the…
A: Cell is the building block of the body. It is basic structural and functional unit of life.
Q: The role of proteins in a cell include the following (choose all that apply) O identifying self and…
A: the role of protein in cell includes the following:
Q: Hypertonic means that the environment outside of the cell has a higher concentration of solutes than…
A: Tonicity of a solution refers to the concentration of solute present in the solvent. Based on that a…
Q: The cell membrane contains certain pores in it. This allows only a few substances to pass through…
A: Cell biology: A branch of biology that is mainly based on the fact that the fundamental unit of all…
Q: All UI the above Passive facilitated transport across a biological membrane: uses an integral…
A: Introduction : Facilitated trabsport is a type of passive transport i.e no need of energy to…
Q: The electrochemical gradient across the plasma membrane Group of answer choices is caused by more…
A: sodium concentration is more in outside the cell than the inside of the cell. Sodium potassium…
Q: An animal cell has an internal concentration of 0.1M of NaCl. You place this cell into a solution…
A: The cell would shrivel as the solution present outside the cell is hypertonic to the cell as it…
Q: Choose between osomosis, active transport, facilitated diffusion, simple diffusion, endo-exo…
A: The two major types of cell transport include passive transport and active transport. Passive…
Q: A phospholipid bilayer in the cell membrane (choose all that apply) is a total barrier to to the…
A: The struture of cell membrane suggest that it is a sea of lipids in which protein are embedded…
Q: As a cell grows its cell membrane expands. What specific membrane transport system is involved in…
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Q: Which of the following is most likely to have the greatestconcentration of smooth endoplasmic…
A: Step 1 The endoplasmic reticulum is a complex membrane-linked network of flattened sacs, tubules,…
Q: Which of the following is NOT a function of cell membranes? VO autolysis during programmed cell…
A: The plasma membrane, commonly known as the cell membrane, is semi-permeable in nature. It is a lipid…
Q: What is the significance of the protein-lined pits? O Protein attracts other proteins needed for ATP…
A: The cell is covered by a membrane that is selectively permeable in nature. That is, the cell…
Q: Water makes up a large percentage of the body's cells. For a cell to remain in homeostasis, there…
A: Homeostasis is the state of constant internal, physiological, and biochemical circumstances that…
Q: Label the diagrams of cells using the following terms: diffusion, active transport, osmosis,…
A: Osmosis is the movement of a solvent across a semipermeable membrane toward a higher concentration…
Q: Movement of one substance in one direction across the cell membrane is a form of transport called:…
A: Answer- Cell membrane have many different type of transport proteins which are part of integral…
Q: r molecules to diffuse to the center.
A: Cells are the basic building blocks of all living things. The human body is composed of trillions…
Q: Make an illustration/representation that will show how cell membrane carry out function of…
A: The cell membrane is the outermost covering of the cell which is made up of the bilipid layer. It…
Q: What would happen if all of the Na+/K+ pumps in a cell stopped working? One of the other transport…
A: Hi! Thank you for the question, As per the honor code, we are allowed to answer one question at a…
Q: The absorption of nutrients is determined by... The cell's volume The cell's surface…
A: The cell is the basic unit of life. Based on the number of cells an organism can be unicellular or…
Q: Which of the following cell junctions are involved with anchoring of the cell to the extracellular…
A: Cell junctions are structures composed by several different transmembrane proteins, whose main…
Q: increases the fluidity of the membrane at all temperatures. decreases the fluidity of the membrane…
A: The presence of cholestrol in the cell membrane of some animals helps to keep the integral proteins…
Q: Cells may bind to each other without actual contact between membranes of each cell.
A: Answer is false
Q: When the nerves deliver a signal to contract, Ca++ (calcium ions) rush into the cell. The calcium…
A: The muscle contraction is dependent on release of calcium ions from internal stores, which is…
Q: Which of the following statements best describes the nucleus of a cell? O The nucleus contains very…
A: Answer. Correct answer is option (c). Archea and bacteria are both microscopic, prokaryotic…
Q: Which of the following is NOT a function of cell membranes? O autolysis during programmed cell death…
A: The cell membrane is also known as the plasma membrane, and it is semipermeable in nature. It is an…
Q: CELL ENVIRONMENTS Fill in the following statement: Diffusion is the movement of molecules…
A: The difference in concentration forms the concentration gradient. Diffusion is a process by which…
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: A blood cell is placed in a sugar solution (area of water concentration). The water moves from an…
A: Osmosis is the process in which diffusion of the solutes, solvents etc takes place by the separation…
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- Imagine you need to move a large protein from one region in the cell to another. Which of the following proteins would be able to do this? Onuclease O myoglobin O kinesin Oligase O hemoglobin O myosinFONE mOecuies anO w membrane via. asla re and prot active transport n animal c diffusion nt, bacteri facilitated transport O endocytosis ontents During diffusion, when the concentration of molecules on both sides of a membrane is The ins fphosph the same, the molecules will: s made are ma move across the membrane from outside of the cell of hydr stop moving across the membrane mine wb olar hea برو ثينات protein continue to move across the membrane in both directions move across the membrane to the inside of the cell ves the s are fo with Lipid-soluble molecules and gases enter the cell by diffusion through the channel proteins osmosis through the channel proteins II Phosph. bilayer nnelChannel proteins are often called what? O Selective proteins One-way proteins None of these is correct O Pores O Carrier proteins
- You are working on a team that is designing a new drug. For this drug to work, it must enter the cytoplasm of specific target cells. Which of the following would be a factor that determines whether the molecule selectively enters the target cells? O the phospholipid composition of the target cells' plasma membrane O the nonpolar, hydrophobic nature of the drug molecule the similarity of the drug molecule to other molecules that are transported into the target cells the concentration of the drug molecule that is transported in the blood Submit Request AnswerIf the RGD tripeptide sequence in fibronevtin wete absent. Which is true? integrims would not bind to fibronectin cadherins on adjacent cells would not be able to interact in a homotypic fashion. fibronectin could not form crosslink with other extracellular matrix proteins. glycosaminoglycans would not be able to assemble onto proteoglycans.None of the above Which of the following is amphipathic? O Phospholipids. O Integral proteins. Peripheral proteins O Phospholipids and integral proteins zyme ity is the best at:
- A beaken of wate is divided into too Compantments, D and E, by an autificrl The Concentration of Nat in lipid bilayer. Compantment A is 1.0 M, whie the concentration of Nat in compautment B is 0.5 M. Repudig Nat concentration, compantment A would be re feared to while compantment as B would be refened to a A) hy pertonic ; isotonic B) hype tonic ; hy po tonic C) isotonic ; hypertonic D) hy potoni cj isotonic E) hy potonic; hy patonicWhich of the following would pass most easily through a cell's membrane by simple diffusion? large hydrophobic molecules O large polar molecules O small charged molccules small non-polar molecules a 梦 メ bphich of the following statements is true about actin: OActin is translated by free ribosomes O Dyneins move toward the minus end of actin filaments actin can bind to GTP O actin filament is stabilized by ADP-binding
- All are protiens of cell membrane that are involved in flow of nerve impulse except 1-channel proteins 2-carrier protiens 3-peripheral protiens 4-integral protiens Also give explanationMany proteins are attached to the membrane phospholipids via a covalently linked polysaccharide. Which of the following would be an example? Glycophosphatidylehanolamine anchors O All of the other are correct O Glycophosphatidylinositol anchors O Glycophosphatidylcholine anchorsAt this point, go over your answers to the activit ies given earlier in this lesson before you fill out the table below. Table 20: Interdependence of Function and Fom in the Cell Membrane Which components of the cell membrane enable it to perform this function? Function of the Cell Membrane How do these components help the cell membrane in performing this function? iully control the passage of substances through its membrane. However, all activit ort, involve energy. This leads us to another characte As stated in the first section of this lesson, maintaining homeostasis requires ise this in powering