Which of the following apply to cells in a hypotonic solution? O Water moves into the cell because the external environment has a higher solute concetration than the cytoplasm O Water moves into the cell because the external environment has a lower solute concentration than the cytoplasm O Water moves out of the cell because the external environment has a higher solute concentration than the cytoplasm O Water moves out of the cell because the external environemtn has a lower solute concentration than the cytoplasm O There is no net movement of water into or out of the cell

Which of the following apply to cells in a hypotonic solution? O Water moves into the cell because the external environment has a higher solute concetration than the cytoplasm O Water moves into the cell because the external environment has a lower solute concentration than the cytoplasm O Water moves out of the cell because the external environment has a higher solute concentration than the cytoplasm O Water moves out of the cell because the external environemtn has a lower solute concentration than the cytoplasm O There is no net movement of water into or out of the cell

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Choose between osomosis, active transport, facilitated diffusion, simple diffusion, endo-exo cytosine . -Na+ high concentration outside, low inside. Cell wants it to go out. -Na+ high concentration outside, low inside. Cell wants it to come in. -O2 high concentration outside, low inside. Cell wants it to come in. -Put cell in salt water and it shrivels -Requires clathrin or similar molecule.
A cell is placed in a hypertonic medium triggering its regulatory volume control mechanism. Which of the following statements best describes the main ion movement responsible for the regulatory volume control in this situation? Efflux of K+ from the cytosol. Efflux of Na+ from the cytosol. Influx of Na+ into the cytosol. Influx of K+ into the cytosol.
What is the dependent variable of the experiment?
A section of a cell membrane Is shown in the diagram below. CELL MEMBRANE Low Concentration of Substances Outside Cell Cell Membrane Inside Cell High Concentration of Substances Which type of membrane transport by a carrier proteln is most likely shown in the diagram if energy is NOT being used? osmosis simple diffusion active transport facilitated diffusion Direction of Substance Movement
Which of the following molecules is least like to enter a cell by simple diffusion? Oxygen Carbon dioxide Steroid hormones Fatty acids Sodium
Bacterial Cell Membrane: Because of the unique structure of the cell membrane, the membrane is described as a propery essential for life of the cell. easily frozen at low temperatures selectively permeable easily melted at high temperatures O indestructible
Which of the following can be used to describe both desmosomes and adherens junctions? Select all that apply. They provide strong attachments through linkage with actin cytoskeleton O They provide strong attachments through linkage with intermediate filaments Both of them function to hold adjacent cells firmly together O Types of cadherin proteins are used to mediate cell-cell adhesion
"In a beaker containing 6% NaCl, you place a cell which contains 0.9% NaCl. NaCl doesn t cross the membrane. What will be the result?" There will be net movement of water out of the cell There will be net movement of water into the cell There will be net movement of salt out of the cell There will be net movement of salt into the cell
Which of the following is most likely to pass through the cell membrane via facilitated diffusion? A B с D a polar molecule moving against the concentration gradient a nonpolar molecule moving along the concentration gradient a nonpolar molecule moving against the concentration gradient a polar molecule moving along the concentration gradient
Which of the following best describes a hypotonic solution? a-There is a higher concentration of solute outside the cell than inside the cell b-There is a lower concentration of solute outside the cell than inside the cell c-The solute concentration both inside and outside the cell is equal d-Through osmosis, water will enter the cell causing it to swell
What is the role of lysozyme and a low ionic strength extraction buffer? Select all that apply. Cells absorb water from a low ionic strength extraction buffer, by osmosis, swell and lyse, releasing their contents Lysozyme breaks down bonds in the cellulose cell wall of plants, weakening the structure Cells release water into a low ionic strength extraction buffer by osmosis, shrink and lyse, releasing their contents Lysozyme is an enzyme found in lysosomes in cells Lysozyme breaks down bonds in the peptidoglycan cell wall of bacteria, weakening the structure Lysozyme is an antibiotic found in tears, saliva, human milk and mucus.
Movement of one substance in one direction across the cell membrane is a form of transport called: coupled transport co-transport symport antiport uniport