Muscle. Contractions which move the body depend heavily on diffusion. Why do we have difficulty moving our fingers etc. when they are cold ?

Q: 7.How does oxygen and carbon dioxide enter and leave the lung capilliaries respectively? Read and…

A: During the process of respiration the entry and exit of oxygen and carbon dioxide is facilitated by…

Q: Thinking back to the "effect of concentration" lab, what did your data indicate? The concentration…

A: Introduction  Diffusion is a process that results from the random motion of molecules and results in…

Q: Does diffusion require energy to occur

A: Diffusion is a kind of transport in which dissolved substances or particles move from region of…

Q: Among the following which one is NOT the location of smooth muscle cells?

A: As the name suggests, smooth muscle cells do not any striations. They are narrow spindle shaped…

Q: 1. Explain how diffusion occurs across a cell membrane. What is required for diffusion to occur?…

A: Diffusion occurs across a cell... Ans 1.Diffusion occurs when particles disperse.  They move from an…

Q: Clearly distinguish between the terms diffusion and osmosis.

A: Introduction: Osmosis and diffusion are two types of passive transport that are important for…

Q: In order to move flagella or cilia, ATP is required for the dynein head to try to move along: O…

A: Cilia and flagella are the locomotory structures of the cells. Usually cilia are responsible for the…

Q: 1. The best description of how muscles move is: a. spinning basal bodies b. sliding filaments c.…

A: The muscle is the part of the muscular system and are specialized tissue involved in movement along…

Q: Heart muscle works hard and therefore consumes much ATP. Which organelles would you expect to be…

A: Heart muscle or cardiac muscle signifies the thick middle layer of heart, which is known as…

Q: If you sweat, are you losing extracellular fluid or intracellular fluid?

A: The fluid which is present outside cell but sealed inside body cavities and vessel is called…

Q: 9. Which of the following correctly describes the end plate potential (EPP)? A)It is primarily…

A: End plate potentials (EPPs) are the voltages which cause depolarization of the muscle fibers caused…

Q: One way to keep the body fit and healthy is by means of regular exercise. Im pretty sure we always…

A: For keeping ourselves fit there are many ways there is no need to go to gym. Rather than this one…

Q: Explain the steps involved in the transport of sodium ions and potassium ions across a plasma…

A: Introduction :- sodium potassium ATPase is a protein pump found in neurons' cell membranes (and…

Q: What are the different types of movement exhibited by the cells of human body?

A: 1.Amoeboid or pseudo podial movements.  By streaming of cytoplasm the cell surfuce forms pseudo…

Q: (3) Explain the passive processes of simple and facilitated diffusion.

A: Diffusion is the movement of water particles from the region of higher to lower concentration. In…

Q: 1. Diffusion is the movement of any particle against its concentration gradient? True or False. 2.…

A: Cell is the smallest structural and, functional unit of life. It is simple machinery that houses all…

Q: 14. The plasma membrane of a muscle fiber is called a 15. A myofibril consists of and filaments that…

A: The muscle tissue is one of the basic tissue in the body that is responsible for contraction and…

Q: at are the factors affecting the rate of

A: Diffusion is a net movement of molecules along the concentration gradient i.e., region of higher…

Q: Does active transport help maintain homeostasis?

A: The regulation of physiological processes to maintain a balanced condition for the optimal…

Q: how could you explain these symptomsin someone with hyperkalemia, first overactive muscles, then…

A: Hyperkalemia is a condition characterized by elevated levels of potassium ion in blood. The normal…

Q: Reverse cholesterol transport begins with the formation of ……………. by the liver

A: Lipids such as cholesterol, are hydrophobic substances and are transported in the body circulation…

Q: 6 As calcium is actively reabsorbed into the sarcoplasmic reticulum, its concentration at the…

A: Excitation–contraction coupling: It is a physiological process which involves the conversion of an…

Q: X Membrane proteins are necessary for active transport Y. Membrane proteins play a role in facitated…

A: For the movement of molecules or ions different transport systems are involved. These transport…

Q: The greater the concentration gradient the slower the rate of diffusion.

A: This statement is FALSE as the greater the concentration gradient i.e the difference in the…

Q: 4. Is the G, phase a truly resting phase? If the cells in G, are not truly resting, why do you think…

A: A cell cycle is a progression of occasions that happens in a cell as it develops and isolates. A…

Q: 9. Draw the three different types of transporter proteins used in active transport. After doing…

A: The movement of substances against an electrochemical gradient through a cell membrane requires…

Q: Smooth muscle

A: Smooth muscle:-  Is a type of tissue found in the wall of hollow organs such as the intestine,uterus…

Q: What is the role of Intercellular Chemica Homeostasis?

A: As we know Homeostasis is an important feature that is essential in the case of an organisms'…

Q: 6. If it can cross a membrane, a solute will move from a hyposmotic/hyperosmotic (circle or…

A: Osmosis The process in which water or solvent molecules move across semi permeable membrane.

Q: Q1. Diffusion is: Directional Non-random Passive None of the above

A: The body's biochemical and physiological processes involve a variety of molecules and solutes.…

Q: Of the following options, which does NOT increase the rate of diffusion? O larger surface area O…

A: Diffusion is a phenomenon through which the molecules move from higher concentration to lower…

Q: 18. The diagram below shows a sequence of events that often occurs in human muscle cells. Skeletal…

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Q: 26. Which of the following statements is(are) true? A. A solution which is isotonic, relative to…

A: Tonicity is the concentration of a solution as compared to another solution or the ability of an…

Q: Combining your knowledge of rates of diffusion with yourknowledge of muscle physiology, explain why…

A: Slow-twitch (Type I) fibres, which are characterised by muscles with lengthy contraction duration…

Q: List the differences between passive diffusion and facilitated diffusion.

A: Diffusion is defined as the migration of a chemical from a high-concentration area to a…

Q: Which of the following correctly describes the movement which takes place when mucus is pushed…

A: A very thin airway surface liquid (ASL), usually 5 to 10 μm deep, protects the lungs' airways from…

Q: 1. Circle all of the following that are examples of diffusion. Explain why each is an example of…

A: Introduction Diffusion:- Diffusion usually occurs in liquids and gases because their particle…

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.