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- 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 Clentity_Sound+of+Waves (1) x S Forrar (wrap) y decorar tu libre S Schoold A districtims.seattleschools.org/common-assessment-delivery/start/5398502362?action3Donresume&submissionld%=657119921 Concentration, Osmosis, and Cell Environments HW Quiz Assume that the picture below shows environments on two sides of a selectively permeable membrane. Assume the light blue circles are wa molecules. Assume the red circles are glucose molecules. Which side has the higher concentration? water molecules will flow to the left water molecules will flow to the right water molecules will flow both ways, but mostly will flow to the right water molecules will flow both ways, but mostly will flow to the left water will flow to the left and glucose will flow to the right water will flow to the right and glucose will flow to the left Which best describes the way that the particles move?8. Define homeostasis. maintoining nterral balance 9. What role does the cell membrane play in maintaining homeostasis? 10. How is facilitated diffusion different from diffusion? How are they similar? 11. List two ways that active transport is different than passive transport. 1) 2) 12. Why is the sodium-potassium pump considered an active transport? Which direction are the sodium and potassium bing pumped? How many sodiums are being pumped? How many potassiums are being pumped?
- The sarcoplasmic reticulum stores and releases ________. a. ACh b. Calcium ions c. ATP d. Phosphate ionsWhich of the following do not play a role in intracellular movement? microfilaments and intermediate filaments microfilaments and microtubules intermediate filaments and microtubules only intermediate filamentsThe key components of desmosomes are cadherins and. actin microfilaments intermediate filaments microtubules
- What controls the passage of molecules into and out of the nucleus? a. endoplasmic reticulum, an extension of the nucleus b. nuclear pores,which consist of membrane proteins c. nucleoli, in which ribosome s.ubunits. are made d. dynamically assembled microtubules e. tight junctionsWhy are ion channels necessary to transport ions into or out of a cell? Ions are too large to diffuse through the membrane. Ions are charged particles and cannot diffuse through the hydrophobic interior of the membrane. Ions do not need ion channels to move through the membrane. Ions bind to carrier proteins in the bloodstream, which must be removed before transport into the cell.A plasma membrane ________. a. controls exchanges between the cell and the external environment b. is a mesh of intermediate filaments c. is a type of extracellular matrix
- Describe two ways that decreasing temperature would affect the rate of diffusion of molecules across a cell’s plasma membrane.Concerning the plasma membrane: A Approximately 80% of the plasma mem- brane mass is composed of phospholipids; B Most of the membrane proteins are extrin- sic proteins and GPI-anchored proteins; C Membrane proteins are never glycopro- teins; |D The composition of the plasma membrane is different from that of endomembranes; E Transmembrane proteins can be transport proteins (ion pumps; canals, transporters, ..).HEL 9. Consider the membrane protems in question 7. What cellular functions must always be performed by an integral membrane protein? Explain. NEL 2.2 Membrane Structure and Functio
