PhysioEx Exercise 1 Activity 2

https://www.bartleby.com/questions-and-answers/study-the-following-diagram-of-a-typical-cell-and-name-the-labeled-structures.-8-1-9.-2-10-3-11-12-1/293daee7-d84e-453a-87f1-ca219c17862aFree trail after this im buying for sure.. it needs to be turned in by 11:59 tho..

33. Which statements concerning passive and active transport are correct?    A. Both passive and active transport requires cell energy B. Passive requires cell energy while active transport does not C. Active transport requires cell energy while passive does not D. Neither passive nor active transport requires cell energy

Give 10 different cell parts. Explain their importance and normal activities/ function in the cell.

Urgent help needed   Watch the following movie clip from Lord of the Rings: The Fellowship of the Ring. In this clip, Gandalf the Wizard stops the fire demon from passing across the stone bridge. Explain how this clip is similar to the role of the plasma membrane. Use as much detail (about the membrane, not the movie) to support your answer.

Tissue engineering question Please give a brief and clear answer with your own words. Question: What is a stem cell? What are different types of stem cells that can be used as cell sources in tissue engineering? Compare their advantages and disadvantages.

BHK-21 are what type of cell?   muscle   fibroblast   nerve   epithelail

56. Which of the following features is most helpful in determining whether an epithelial neoplasm is benign or malignant (A) Atypical features of nuclei (D) Disruption oif cell to cell orientation (C) Invasion beneath basement membrane (D) Presennce of mitosis (E) Rate of cell proliferation

List at least 5 common causes of cell injury. Provide a brief description of their effects on the morphology and physiologic activities of the cell.

Need a good explanatory answers. 1. Which reflections are best on lysosomes and vacuoles?.

Please answer both questions:  1) The sodium-potassium pump: a) equalizes the charge distribution across the cell membrane. b) transports K+ into the cell where it is in high concentration. c) requires very little energy expenditure on the part of nerve cells. d) establishes concentration gradients across the cell membrane.   2) Membrane potentials are always expressed comparing the inside of the cell relative to the outside of the cell. The resting membrane potential is -70 mV because the inside of the cell accumulates ions with negative charges.   a) True b) False

(45) A 72 year old man is brought to the emergency department following a myocardial infarction. He dies in cardiogenic shock 12 hours later. Histologic examination of renal tissues obtained at autopsy shows swollen, pale tubular epithelial cells with normal appearing nuclear. Which of the following processes most likely caused these changes? (A) Decreased intracellular protein concentration (B) Exhaustion of intracellular glucose (C) Inadequate intracellular synthesis of ATP (D) Increased membrane permeability of water (E) Opening of Na+ channels in the plasma membranes

What are two properties or characteristics of a cell or particle that can be measured by a flow cytometer? Please answer with 5 dot points/sentences minimum

1) whether the statement is correct or incorrect and 2) the reasoning for your answer. Your answer should demonstrate your understanding of the physiological concepts underlying the statement and be professionally written.  Assume a cell with the following properties: [Na]out = 120 mM; [Na]in = 12 mM [K]out = 5 mM; [K]in = 125 mM Membrane is permeable only to Na+ and K+ If the plasma membrane of the cell becomes more permeable to Na+, both influx of Na+ into the cell and the Na+ equilibrium potential will increase.

Lesson: BIOCHEMISTRY  Parts Of Cell Hiii tutor i hope you will help me to answer those questions. Hope u will have a heart to answer all thank youuu, this is my first time using my question subscription in biochemistry ^^

1. Diffusion is the movement of any particle against its concentration gradient? True or False. 2. All cell membrane demonstrate a resting membrane potential? True / False. 3. All cell membranes have vgc of Na+ and K+?  True / False. 4. Most physiolgical types of diffusions are considered to be facilitated? True / False.

Answer my questions about transport mechanisms. Explain your answer. What are the implications of transport mechanisms in medical conditions???Give some DISORDERS or DISEASES resulting functional deficiency of transport mechanisms.

How do cellular osmosis takes place from interstitial fluid to the vacuole and vice versa?   please help asap

Chloride ions (Cl-) are in higher concentration outside of the cell compared to the intracellular fluid (ICF). If a cell is at rest and chloride-specific ion channels open, identify what would happen. Choose ALL of the correct answers. 1 Some chloride will enter the cell, but the concentration gradient for chloride will not change much. 2 The membrane will hyperpolarize 3 Chloride will come into the cell until it reaches chemical equilibrium. 4 The membrane potential won't change. 5 The membrane will depolarize 6 Some chloride will leave the cell, but the concentration gradient for chloride will not change much

Please ASAP. Thankyou. Question 5 You measure the membrane potential and find that it does not change from time X to time Y. However, you find that current across the membrane has increased by a factor of 4 from time X to time Y. Which of the following most likely happened between time X and Y?      a. 4 times as many ion channels closed on the cell membrane     b. Resistance of the membrane changed to ½     c, Resistance of the membrane changed to ¼   d. not enough information

Explain cells at work episode 1 bump

questions(MCQs) 1. Why is transport across the plasma membrane necessary? A. transport of substances for metabolic activities B. movement of waste product out of cell C. movement of substances produced by cells D. all of the above

Dr Renko studied diffusion of tracer molecules to study paracellular diffusion across an epithelial monolayer of Caco-2 cells.  The tracers were fluorescently labelled dextran molecules of different molecular weight.  She is screening various drugs to determine whether they affect the cells in any way.  Which drugs are most likely to change paracellular diffusion? a.) Drugs that modify microvilli are the most likely to change paracellular diffusion b.) Drugs that modify gap junctions are the most likely to change paracellular diffusion c.) Drugs that modify with aquaporins are the most likely to change paracellular diffusion d.) Drugs that modify tight junctions are the most likely to change paracellular diffusion

42.The sodium/calcium exchanger (NCX) transports three sodium into the cell for every one calcium out of the cell. Given what you know about ion concentrations, which of the following is/are true?   A. sodium is being transported against its concentration gradient   B. sodium is being transported with its concentration gradient   C. calcium is being transported against its concentration gradient   D. calcium is being transported with its concentration gradient Using a cell line, you are experimenting on transporters in the laboratory. You apply to the cell a chemical that inhibits the Na+/K+ ATPase. What do you notice about other transportation mechanisms across the cell membrane?  Choose all that are correct.   A. symporters cease to work   B. antiporters cease to work   C. movement of ions thru channels is altered as concentration gradients diminish   D. calcium ATPase ceases to work 44.The sodium/glucose transporter (SGLT)…

The options are hypotonic,hypotonic,and isotonic

Briefly Mentionabout the important functions of apoptosis & autophagy.

1. Discuss how microtubules are arranged and how they interact to promote movement. 2. Discuss how the components of muscle cells enable movement in muscles. Please answer 1 and 2. Thank you

Part I – Introduction to Diffusion and Osmosis1. Define the terms diffusion, passive transport, active transport, and osmosis. In each of your definitions, describe the role of a concentration gradient. 2. Biological membranes are said to be selectively permeable (or semi-permeable). What does this term mean, and how does this affect the way that molecules are able to move through cellular membranes? 3. Which type of molecule is more likely to quickly pass through a cellular membrane via simple diffusion, polar or nonpolar? Why? (You may need to use information from your textbook and class discussions to answer this question.)

Describe the importance of cell-material interactions by providing the series of events upon their contact and the potential outcomes based on material properties.