QUESTION 6 Which of the following statements is correct? -40 -50 -60- DE F -70- A B C -80 - -90 Time "F" represents an action potential "D" represents membrane repolarization "A" represents a hyperpolarizing graded potential "B" represents a graded depolarization of the cell membrane O O O O Membrane potential (mV)

Q: Which of the following are processes of a neuron? (Select all correct answers) Myelin Axons Nerves…

A: The neuron is the basic structural and functional unit of the nervous system. It consists of a cell…

Q: Which is/are an electrical signal?

A: The nervous system includes the use of electrical signals for the transmission of impulses from…

Q: Which of this muscle is found in heart? O cardiac muscle O smooth muscle O skeletal muscle

A: Muscles are in the form of contractile fibres varying in lengths and form muscular tissue. The…

Q: When an individual sarcomere undergo contraction, which of the following happens? H band and I band…

A: A sarcomere is the basic contractile unit of muscle fiber. Each sarcomere is composed of two main…

Q: Which of these would affect an electrical synapse?

A: Synapses are gaps that separate the terminal buttons of one neuron from receptors of another neuron.…

Q: You inject a large fluorescent dye with a molecular weight >10,000 Da into a cell that is connected…

A: Gap junctions are intercellular channels that allow direct communication between the cytoplasm of…

Q: Connective-tissue cells include all of the following, except cells. O blood bone adipose neuroglial

A: Connective tissue is a type of tissue which is found between other tissues of the body. For instance…

Q: QUESTION 1 Match the tissue type to what it is made of v neurons and neuoglia cells A. epithelial v…

A: Epithelial: Just cells packed next to cells packed next to cells. Epithelial tissue is made up of…

Q: na synapse: O The pre-synaptic cell is always a neuron The post-synaptic cell is always a neuron…

A: A presynaptic cell is a cell that produces action potential and transmutes it to the postsynaptic…

Q: Select the correct order of the following steps in IP3 signaling: + IP3 binds to ligand-gated…

A: Correct order of IP3 signaling:- 1. The ligand bind to the receptor. 2. The G protein swaps out GDP…

Q: QUESTION 2 In an electrical synapse: Neurotransmitter release triggers the opening of ion channels…

A: A synapse is a connection between one neuron's axon terminal and the dendrite of the next neuron.…

Q: What type of ion current could have produced the membrane potential in E? -40 -50 - -60- D E F -70-…

A: Membrane potential is defined as the electric potential difference across the membrane of a cell…

Q: Which of the following is not a potential biological role of the lipid asymmetry of the plasma…

A: The plasma membrane is also known by the name cell membrane. This membrane is found in all the major…

Q: QUESTION 8 What are 'silent synapses? Synapses with only AMPARS in their postsynaptic surface…

A: The site of contact between two nerves is known as a synapse. There are electrical synapses and…

Q: Which of the following statements is not correct? +30! -F Membrane Potential (mV) H D. .B -70- A C…

A: The picture is showing the action potential curve. The action potential is generated on receiving…

Q: What is the primary function of the mucociliary escalat Phonation Immunity Acid-base balance…

A: The main function of the lungs is exchange of gases that is carbon dioxide produced in the cells…

Q: Which has a stronger/larger change in voltage? action potential O graded potential both graded and…

A: Neuron or nerve cells are cells that act as messengers, they are able to undergo  electrical…

Q: Which one ot the following statements is FALSE? Oa ADP is often one of the products of a reaction…

A: Protein kinases are enzymes that regulates biological proteins by phosphorylation with ATP. IT…

Q: QUESTION 4 Which of the following is part of the central nervous system? Neurons that transmit…

A: The nervous system comprises the brain, spinal cord and nerves. It transmits electrochemical signals…

Q: Question 3. Consider a cell suspended in a fluid containing a particular solute. If initially the…

A: Fick's law states that if the surface area of the cell is assumed to remain constant then the rate…

Q: Choose the correct statement. O Two of these are correct O Secondary active transport consists in…

A: Even the process of transport across the cr membrane is governed by the law of thermodynamics .

Q: Question 9 of 16 Which of the following causes the merging of synaptic vesicles with the synaptic…

A: In this question synaptic transmission of impulse is shown. So synapse is a connecting point between…

Q: Which of the following statements, regarding the figure below, is not correct? Membrane D…

A: Cell is a structural and functional unit of living organisms. Several cells joined together to form…

Q: Predict the effect of a substance that inhibits sodium channels from opening. How might this…

A: Introduction The neuron is the small but important functional unit of the central nervous system…

Q: Question 26 Relatively few cells and a large amount of extracellular matrix is characteristic of…

A: Tissue It is defined as the group of cells have similar structure and similar function. There are…

Q: What process best characterizesCa concentration) into the endoplasmic reticulum (high Ca 2+ movement…

A: A concentration gradient is set up when the concentration of the ions on both sides of the membrane…

Q: 8. Based on this hypothesis, draw how would a membrane conductance plot of this TEA-poisoned neuron…

A: The total number of open channels in the membrane determines the membrane conductance (Gm).

Q: QUESTION 4 If you open an Na+ channel in a typical neuron: Na+ will enter the cell, and the cell…

A: Role of sodium channels in typical neurons.

Q: QUESTION 11 What property of the voltage-gated potassium channels allows K ions to pass? O a. Two…

A: Cell signaling can be both intracellular and intercellular. Intracellular signals are generated by…

Q: QUESTION 13 Which of the following are not criteria for a substance to be detined as a…

A: Note: We’ll answer the first question since the exact one wasn’t specified. Please submit a new…

Q: Which of the following is the CORRECT relationship?

A: Phosphatidylinositol 4, 5 bisphosphate is known as PIP2 that is a component of cell membrane -…

Q: iestion 13 of 18 ad and analyze the statements below: The resting membrane potential (RMP) can be…

A: The concentration of sodium ions is always greater than the extracellular fluid which is present…

Q: What type of tissue is able to generate electrical signals, force and movement? endocrine glands…

A: Biology refers to the branch of science that deals with the study of living organisms. All living…

Q: Which of the following statements, regarding the figure below, is correct? (Glucose]jow Glu Na…

A: Digestion occur in the small intestine where breakdown of food occur and thus absorption occur by…

Q: QUESTION 3 Pumps (select all that apply) O Couple transport against electrochemical gradient to ATP…

A: ---Pumps are kind of protein that is capable of pumping out compounds that could pose a threat to…

Q: Why do cardiac muscle fibers have a long re O To allow time for blood filling Refractory period is…

A: The heart is considered a muscular organ located front and middle of the chest region. It is made up…

Q: Question 8 Your body contains various types of connective tissue, each having a specific function.…

A: Tissue is a part of structural organization of body which is composed of numerous cells Types of…

Q: d) Use the graph below to complete the table: +40 0 What channel is open? What channel is closed? A…

A: Neurotransmitters can serve as chemical messengers for ion channels, neurotransmitter mainly causes…

Q: Question 17 of 25 What are the functions of proteins in the cell membrane? Select the correct…

A: The cell is the basic and fundamenetal unit of life. It is surrounded by the outer covering called…

Q: The concentration of solutes in Cell X is 13%, but Cell X contains no potassium or magnesium. CelI X…

A: Molecules move across the plasma membrane on the basis of the concentration gradient, from region of…

Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.