Thin membranes bound all living cells and many of the tiny organelles internal to cells. Take up the quiz below and get to see how much you understood about its structure and how it helps it attain its functions.
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The head of a phospholipid is Which of these statements best describes the function of the cell membrane? A membrane is permeable to hydrogen but impermeable to sodium ions.
Which molecule cannot move into the cell? In the diagram below, what structure is labeled with the letter A? This energy-rich molecule, produced by cellular respiration, is vital for the functioning of the cell. Back to top.Speak now. The cell membrane is used to protect the interior parts of the cell to all of the other items that can be found outside the environment. This is known to be selectively permeable, which means that it will allow specific molecules to enter, and there will also be particular molecules that will be allowed to exit.
They usually have certain functions such as the following: They make sure that toxic substances will not penetrate the cell. They have different receptors that will help pass on the messages that are being passed. Lastly, they offer overall cell protection.
Just how much do you know about the cell membrane, the things that it can do, and its parts. You can always check the different quizzes that are available online. You may become surprised by the details that you will get whenever you answer. Thin membranes bound all living cells and many of the tiny organelles internal to cells.
Sample Question. Made of carbohydrates. Made of proteins. Made of nucleic acids.
None of the above. Phospholipid bilayer with many other organic compounds. Long amino acid chains. Just a phospholipid bilayer. Cytosol and eukaryotes. Transport Across The Cell Membrane! Trivia Quiz. Cell Membrane: Structure And Function! This quiz will ask you questions about cell membranes, their structure, and their functions.
The membrane is the outside covering of a cell. Phospholipids make up the basic structure of a cell membrane. The membrane'sScroll down for answers. Which of these is part of the cell membrane?
Cell membrane questions
ATP d. How do fat-soluble molecules normally get into a cell? The phospholipids are unusual molecules because: a.
Which of the following statements best describes the "fluid mosaic model" of the structure of the cell membrane? A single layer of protein on the outside and a single layer of lipids on the inside. The movement of chloride ions from an area where chloride is concentrated to an area where chloride is less concentrated is which of these?
If a cell has a solute concentration of 0. Which of the following is necessary in order for osmosis to occur? Which of these are passive transport mechanisms? In an isotonic solution there would be: a. The sodium-potassium pump which carries sodium out of a cell and potassium into a cell is an example of: a. The process of a cell engulfing a solid object is: a. What is likely to happen to a plant cell that is placed in pure water?
When a cell bursts due to osmosis, it is in a solution that is: a.
Membranes I: Introduction to Biological Membranes
Why do plant cells behave differently to animal cells when placed in a hypotonic solution? Plant cells are permeable to water b. Plant cells do not carry out active transport c. Plant cells contain a vacuole d. Plant cells have a cell wall. Which of these equations is correct? Answers: 1b, 2a, 3b, 4c, 5a, 6a, 7a, 8d, 9a, 10a, 11a, 12a, 13c, 14d, 15b.Played times. Print Share Edit Delete. Live Game Live. Finish Editing. This quiz is incomplete! To play this quiz, please finish editing it. Delete Quiz.
Question 1. The smallest unit of structure and function of life is. Intracellular fluid is called. Which organelle contains cristae inside its membrane that enclose important enzymes involved in the production of ATP?
The cell membrane is. The movement of oxygen from alveoli cells to red blood cells is called. Immersion of a red blood cell in a hypertonic solution would create. What type of substances can freely pass through the cell membrane.
Vesicles formed at the cell membrane and then being transported into the cell without the help of receptor cells is called. The movement of substances against its concentration gradient. The production of mRNA that occurs in the nucleus is called. The folds of the internal membrane within mitochondria that increase the internal surface area to aid in massive ATP production are called.
Which structure would have fixed ribosomes attached to it, and is involved in "folding" proteins into their 3 Dimensional shapes? Which nitrogenous base does RNA not contain? In cells at rest, Chromosomes form a loose network called. The process of forming a polypeptide at a ribosome in the cytoplasm of the cell is called.
Nuclear division. Cytoplasmic division.Human Body Case Studies. Animation Activities. Study Skills. Additional Readings. Career Information. Course Tools. Martin Lab Manual, Webquest. Laboratory Exercises. Essential Study Partner. Student Tutorial Service. Message Board. Chapter Overview. Study Outline. Clinical Applications. Internet Activities. Chapter Weblinks. Crossword Puzzle. Labeling Exercises. True or False Quiz.
Feedback True or False Quiz. Feedback Multiple Choice Quiz. Feedback Help Center.The membrane itself is hydrophobic in the inner layers and doesn't allow water-soluble molecules to pass, yet water itself can permeate cells.
When scientists at Johns Hopkins University fused human cells with mouse cells that had been dyed blue and red respectively, they made an important breakthrough regarding cell membranes.
What was it? It can be said that some proteins in the cell membrane are like "icebergs floating in a sea of lipids. The author mentions that a group of scientists in Romania published an article on the aquaporin protein long before the scientists who won the Nobel Prize for discovering aquaporins. What explanation does the author offer for the Romanian group's contribution being overlooked? Peripheral membrane proteins are often used by the cell to respond to signals from other cells.
How does the cell membrane on the exterior of the cell differ from the membranes that envelope organelles inside the cell? Reading Quiz Resources A cell membrane is said to be a bilayer. What forms the two layers? Proteins and carbohydrates with electron affinities.
Aquaporins and proteins with opposite charges. Phospholipid molecules that self-arrange tail-to-tail. Phospholipid molecules that self-arrange head-to-head.
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Channels called aquaporins in the membrane allow water molecules to pass through freely. Water molecules cannot pass through the membrane. The water that is inside a cell stays in it throughout its life. The membrane is fallible and sometimes water leaks through. Sometimes the membrane will mistake water molecules for lipids. Cell membranes from mice were very different than those in human cells.Physiology Web.
Excitable cells of the nervous system i. Nervous impulses are the electrical signals by which neurons talk to one another and also to other cells of the body.
The nervous impulse is referred to as the action potential. An action potential is a brief only a few milliseconds reversal of the membrane potential V m. The entire process takes about ms. This potential reversal of more than mV is responsible for electrical signaling in the nervous system, and is the basis of information transmission in the nervous system. Test your basic knowledge of the neuronal action potential by taking this simple quiz below.
For more information about the neuronal action potential, see the Neuronal Action Potential lecture notes. Checking your answers Physiology Web at www. Test Questions. Daily Quiz. Physiology Tutor.