Biological membranes are selectively permeable, allowing certain molecules to cross the membrane, but not others. MAtch the molecules or ions to their mechanism of how they cross a biological membrane. steroid hormones 02 A Simple diffusion v Mg2- facilitated diffusion B. amino acids
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- Most of a membranes diverse functions are carried out by ________ . a. proteins c. nucleic acids b. phospholipids d. hormones۹:4۶ ص * Ooredoo li. A patient with compromised immune system was prescribed Azathioprine by his physician, in your view through which of the following processes Azathioprine will enter inside the cells. 1. out of Select one: O a. Phagocytosis uonsənb Ob. Receptor-mediated endocytosis Oc. Pinocytosis Od. Osmosis Oe. DiffusionWhat is an example of receptor/ligand binding? O Simple diffusion O A hormone binding to a receptor O None of these is correct Facilitated diffusion O Active transport
- The difference in the concentration of a - substance from one location to another is called diffusion concentration gradient O passive transport O osmosis O2. Circle the correct bolded blue word. a. A substance that moves across a membrane "down" or "with" their concentration gradient is moving from the side with a higher / lower concentration of that substance to the side with a higher / lower concentration. This does / doesn't require energy input and is called active / passive transport. b. A substance moving "against" or "up" its concentration gradient is moving from the side with a higher / lower concentration of that substance to the side with a higher / lower concentration. This does / doesn't require energy input and is called active / passive transport. c. If the energy from the hydrolysis of ATP is directly used to pump the substance, the transport is called primary /secondary active transport. d. Ion-coupled transport is primary /secondary active transport and has two parts. First, the hydrolysis of ATP is used to power the creation of an ion concentration gradient. The ion is typically Na* or H*. Second, the energy stored in…The extracellular matrix is NOT composed of? OActin O Collagens Fibronectin O Proteoglycans O None of these
- CLEAR MY CHOICE The logic/reason behind movement of only the red molecules and not the blue across the membrane is? a. The membrane is selectively permeable, and allows only red molecules to pass O b. The membrane is selectively permeable, and the molecules are both soluble C. The membrane is impermeable, and the molecules are different in size O d. The membrane is impermeable, and allows only small molecules to pass O e. None of the answers are correct pe here to searchThe abundant intercellular connections gab junction can be found in O diaphragm O Heart muscle O Skeletal muscle O Smooth muscleWhich of the following statements is correct about passive facilitated diffusion? (select all that apply) V It is a process in which molecules move from a region of lower concentration to one of higher concentration (or up a concentration gradient). O It requires a transport protein. O It requires an expenditure of energy by the cell. O It is a process in which molecules move from a region of higher concentration to a region of lower concentration (or down a concentration gradient). O It involves movement of molecules up a concentration gradient and requires a transport protein.
- pQLScB3CBS-8U2yQp5UAPJA-R3spS6YB8srqTGBoSwdXc_EattnA/viewform dvisor Main... My Drive - Google... Your answer What is the difference between primary active transport and secondary active transport? The sodium potassium pump * Job Listing - USF... WT Enrollment Requir... Is a symporter Can be blocked with drugs Controls intracellular chloride and potassium concentrations Is a glycolipid Breaks down ATP in order to generate energy ATP can be broken down to generate energy * True False A copy of your responses will be emailed to lc21-0506@lclark.edu. Submit Chemic CleX Membrane proteins are necessary for active transport Y Membrane proteins play a role in faciitated diffusion Select one Both statements are FALSE Both statements are TRUE Only the second statement is TRUE Only the fist statement is TRUEWhat process best characterizes Ca2+ movement from the cytosol (low Ca2+ concentration) into the endoplasmic reticulum (high Ca2+ concentration)? O Calcium movement is spontaneous O Calcium movement involves active transport O Calcium movement occurs by facilitated diffusion using a transporter protein O Calcium movement does not require energy O Calcium movement occurs by passive diffusion A