All of the following correctly describe the sodium-potassium pump EXCEPT: O a. Molecules are pumped from low concentration to high concentration O b. Atotal of five binding sites are present in the sodium-potassium pump Potassium ions are pumped into the cell, where they are present in lower concentration than the extracellular fluid O d. The transport proteins will undergo some conformational changes О е. Energy is required for the process to take place

All of the following correctly describe the sodium-potassium pump EXCEPT: O a. Molecules are pumped from low concentration to high concentration O b. Atotal of five binding sites are present in the sodium-potassium pump Potassium ions are pumped into the cell, where they are present in lower concentration than the extracellular fluid O d. The transport proteins will undergo some conformational changes О е. Energy is required for the process to take place

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter9: Cell Communication

Section: Chapter Questions

Problem 2ITD

See similar textbooks

Similar questions

Cell growth kinetics A mouse-mouse hybridoma cell line is used to produce monoclonal antibody. Growth in batch culture is monitored with the following results. Time (days) Cell concentration (cells.ml* x 10°) 0.0 0.45 00.2 0.52 0.5 0.65 1.0 0.81 1.5 1.22 2.0 1.77 2.5 2.13 3.0 3.55 3.5 4.02 4.0 3.77 4.5 2.20 (a) Determine the specific growth rate during the growth phase. (b) What is the culture doubling time?
Opiods cause ligand-gated K+ channels to open and move with their concentration gradient from high to low (into or out) Blank 1. Fill in the blank. of the cell, causing the membrane potential to (hyperpolarize or depolarize) Blank 2. Fill in the blank. Fill in the blank using one of the options in the parenthesis
Propidium iodide (PI) can be used to study both cell division and apoptosis using flow cytometry. Describe how PI is used to study the two cellular events with the principles explained. You are expected to give the full principle of the flow cytometric analysis of apoptosis.
e During apoptosis, rates of protein degradation activity. Select one: a. decrease, decrease b. increase, decrease c. increase, increase d. decrease, increase Cycle HW due y Nov 3rd at 5pm Jump to... ( caused by protease Next page cancer stem cells ►
Practice question 1B) Mutations in the signalling pathways depicted above have been associated with an increased incidence of several types of cancer. Individuals with the se cancers may be treated with one of the following chemotherapeutic drugs. Complete the table below about their me chanisms of action. In which cellular Which process is targeted first compartment/structure/organelle by this drug? Drug Drug's mechanism of action does this proce ss occur? (replica tion, mitosis, transcription, translation, or If more than 1 location, be sure to specify ALL relevant locations. none of the above)? A Inhibits microtubule assembly Create inter- or intra-strand crosslinking in DNA preventing strand separation Inhibits synthesis of non-essential amino acids Drug CH3 HN HN PPPO O N. PPPO O OH OH 5-deoxythymydine triphosphate (DTTP) 5-deoxyuridine triphosphate (DUTP)
Slow block to polyspermy is linked to the cytosolic accumulation of the ion Select one: sodium O b. zinc. O c. potassium O d. hydrogen O e. calcium e Dec 8 at 5pm Jump to...
estion 5 of 15 > Intestinal epithelial cells pump glucose into the cell against its concentration gradient using the Nat-glucose symporter. Recall that the Na+ concentration is significantly higher outside the cell than inside the cell. The symporter couples the "downhill" transport of two Na+ ions into the cell to the "uphill" transport of glucose into the cell. AGgluc If the Na+ concentration outside the cell ([Na+]out) is 143 mM and that inside the cell ([Na+]in) is 19.0 mM, and the cell potential is -53.0 mV (inside negative), calculate the maximum energy available for pumping a mole of glucose into the cell. Assume the temperature is 37 °C. = kJ mol Attempt 14 What is the maximum ratio of [glucose] in to [glucose lout that could theoretically be produced if the energy coupling were 100% efficient? 3.3 x 10-4 O 1.13 3.0 × 10³ 8.01
Artificially induced apoptosis (controlled cellular death) is found to be an effective treat- ment for some forms of cancer. Which of the following describes the most likely mechanism by which apoptosis might be induced? A B с D by causing ribosomes to increase the rate of protein synthesis by triggering the division of mitochondria in the cell to increase ATP production by increasing the expression of membrane-bound glucose protein channels by causing lysosomes to release digestive enzymes into the cytosol
Pls send solution fast within 10 minutes and i will give like for sure Solution must be in typed form Calcium ions bind to the SERCA Ca2+ -ATPase, which has two identical calcium sites, in two stages with apparent equilibrium constants K1=7×105M−1 and K2=2×106M−1 . a.) Calculate K. Note: K is not 0.1*1013 or 14*1011 or 1*1012. b.) Calculate τ.
A scientist notices that a cancer cell line shows high levels of phosphorylated ERK in the absence of EGF. What are two possible explanations for the increase in phosphorylated ERK? Be specific in which proteins are involved.
FtsZ proteins direct the formation of a ___________ that will eventually form the new cell walls of the daughter cells. contractile ring cell plate cytoskeletom septum
Or. Foyez Samar The volume enclosed by the plasma membrane of plant cells is often much larger the c corresponding volume in animal cells. The most regsengble explanation for this observation Is that A) plant cells are capable of having a much higher surface-to-volume ratio than animal cells. B) plant cells have a much more highly convoluted (folded) plasma membrane than animal cens. C) plant cells contain a large vacuole that reduces the volume of the cytoplasm. D) animal cells are more spherical, whereas plant cells are elongated. 12 A u