Concept explainers
Match the term with its appropriate definition.
_____Osmosis
_____Secondary active transport
_____Exocytosis
_____Phagocytosis
_____Simple diffusion
_____Primary active transport
_____Pinocytosis
_____Facilitated diffusion
a. Type of endocytosis in which a large particle is ingested
b. Transport across the plasma membrane against the concentration gradient via direct use of energy from ATP
c. Passive movement of solute across the plasma membrane
d. Movement of solvent from a solution of lower solute concentration to a solution of higher solute concentration
e. Passive movement of solute across the plasma membrane via a channel or carrier protein
f. Type of endocytosis in which ECF is brought into the cell in a protein-coated pit
g. Release of large substances from the cell through a vesicle
h. Transport of a substance across the plasma membrane against its concentration gradient using the energy from the “downhill” movement of another substance
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Chapter 3 Solutions
Human Anatomy & Physiology (2nd Edition)
- Active transport must function continuously because_______. a. plasma membranes wear out b. cells must be in constant motion c. facilitated transport opposes active transport d. diffusion is constantly moving the solutes in the other directionarrow_forwardWhich of the following methods of transport is being used to transfer the substance into the cell in the accompanying graph? a. diffusion down a concentration gradient b. osmosis c. facilitated diffusion d. active transport e. vesicular transport f. It is impossible to tell with the information provided.arrow_forwardMatch the following with the term that best describes them integral part of the plasma membrane can easily cross the semi-permeable plasma membrane cellular currency of cell that enables it to transport molecules against the concetration gradient (i.e active transport) act as channels carriers to transport polar molecules like sugars into cells A. phospholipids B. proteins C. ATP D. oxygenarrow_forward
- If a cell is non-selectively engulfing samples of extracellular fluid, for example to absorb nutrients, it will likely utilize a. exocytosis b. phagocytosis c. pinocytosis d. receptor-mediated endocytosisarrow_forwardThe diagram below represents the process of diffusion through the cell membrane.Identify the condition of the membrane as permeable, semipermeable ornonpermeable. Explain how the condition of the cell membrane affects the process ofdiffusion. Remember to include the concentration gradient.arrow_forwardWhat is the Description and Examples in the body of these Cell transport? Explain in 2-3 sentencesDescription:Examples in the body: 1. Bulk Transport 2. Phagocytosis 3. Pinocytosis 4. Receptor-Mediated Endocytosisarrow_forward
- a. integral memebrane protein that crosses membrane multiple time b. lipid-linked membrane proteins c. peripheral memebrane protein d. integral memebrane protein that crosses membrane incearrow_forwardone reason active transport has a limited maximum transport rate at which it can progress is due to the fact that a. energy required is not available inside the cell b. carrier proteins are not on the surface of the cell membrane c. ion channels are limited in size d. the number of carrier proteins is limited and therefore they can become saturatedarrow_forwardThe image illustrates passive and active transport across the cell membrane. (Use the diagram to answer questions A-D) A. 1. Which section represents facilitated diffusion?2. Explain why or how can you tell?3. Does the cell expend energy in this transport?4. Why or why not?5. What type of solute molecules may be moved by this type of transport? B. 1. Which section shows active transport?2. Explain why or how can you tell?3. Does the cell expend energy in this transport?4. Why or why not? C. 1. Which section shows diffusion?2. What type of solute molecules may be moved by this type of transport? D. Which of these sections are considered passive transport? Explain.arrow_forward
- For the following modes of transport for membranes, tell whether the flow is with or against chemical potenial. Meaning +deltaG or -deltag A. Passive Diffusion B.Faciliated Diffusion C.Active Transportarrow_forwardIon pumps and phagocytosis are both examples of________.a. endocytosisb. passive transportc. active transportd. facilitated diffusionarrow_forwardChoose answer of the following The extracellular matrixa. assists in the movement of substances across the plasmamembrane.b. prevents the loss of water when cells are placed in a hypertonicsolution.c. has numerous functions that affect the shape and activities of thecell that produced it.d. contains the junctions that sometimes occur between cells.e. All of these are correctarrow_forward
- Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage LearningConcepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College