How do most membrane disrupting disinfectants act against living cells? short answer
How do most membrane disrupting disinfectants act against living cells? short answer
Question 3-10 points One of the most important functions of the membrane in living cells is its ability to selectively pass either sodium ions (Na) or potassium ions (K) through channels in the membrane. These ions have the same charge +le). The electric force exerted on them by the membrane will be similar. In addition, they are about the same size (RNa~0.12 nm, RK 0.15 nm). So how can channels in the membrane distinguish between them? One mechanism that has...
What are neutrophils and how do they act against pathogens? how are inflammatory responses affected in diabetics? Please only type the answers.
Where do regulatory T cells develop, and how do they protect against autoimmunity?
Effectiveness of Disinfectants Data Interpretation Please type the answers to the following questions below (double spaced) and attach the data collection sheets when you hand in this lab report. Answer the first 9 questions True or False 1. Disinfectants always remove all bacteria and fungal spores from an object. Antiseptic is another term for disinfectant. The presence of blood serum, skin tissue and other body fluids would interfere with the antimicrobial action of disinfectants. The use of carbolic acid as...
15.Mycoplasma cells don't have cell wall. What is the shape of these cells and how do these reinforce their cell membrane? 16.What are some of the functions of the bacterial plasma membrane? 17.What is meant by active transport of a solute?
Diagram and describe the structure of the plasma membranes of animal cells. How is membrane structure related to permeability? Explain the various ways that different substances cross cell membranes. Give an example of something that crosses membranes each way, and explain why this substance must cross membranes by that particular route, and not some other way. [Hint: Your answer should include all the things that are attached to the membrane, the interactions that hold membranes together, what controls membrane fluidity,...
why do most aquatic animals produce so many eggs? short answer.
Discuss the significance and achievements of the National Rural Employment Guarantee Act (NREGA). Discuss the criticisms that have been raised against the act and how far they are valid. Discuss how effective is the public distribution system (PDS) in India. Evaluate the idea of wholesale replacement of the PDS with a cash transfer system. ANSWER IN ABOUT 2000 WORDS.
3) Answer all 3 parts i), ii), and iii). i) How can you represent a membrane patch in ‘electrical terms’? (2 marks) ii) Both plant cells and many mammalian nerve cells have relatively low resting chloride (Cl- ) permeabilities. How is it then that plant cells, but not nerve cells, can generate positive-going Cl- -dependent action potentials? iii) A hormone acts on a mammalian endocrine cell inducing membrane hyperpolarization associated with an increase in membrane conductance. Suggest and explain a...
why is the correct answer is D? please simple and short
explanation
Number of live cells (log) tooted Time Refer to the figure above. Which of the following statements is CORRECT regarding the figure. Cells are actively growing only during the stage represented by B. B) No cells are reproducing during the stage represented by D. C) Cells are most susceptible to antibiotics during the stage represented by A.D) Cells are alive but not reproducing during the stage represented by...