1. The cell membrane consists primarily of a thin layer of amphipathicphospholipids "water-loving" and "water-fearing" region. Which term means"water-loving"?A. HydrophilicB. HydrophobicC. NonpolarD. Tail2. Which of the following processes moves molecules using cellular energy?A. DiffusionB. Facilitated diffusionC. OsmosisD. Pinocytosis3. Which of the following statements is a function of a cell membrane?A. The cell membrane keeps the cell wall in place.B. The cell membrane stores water, salt, proteins, and carbohydrates.C. The cell membrane breaks down lipids, carbohydrates, and proteinsfrom foods.D. The cell membrane regulates the movement of materials into and outof the cell.4. When cells take in food particles through active transport, what is it called?А. ЕхоcytosisB. OsmosisC. PhagocytosisD. Pinocytosis5. What type of cell transport is illustrated below?EXTRACELLULARA. DiffusionFLUIDB. Endocytosis andExocytosisC. Facilitated DiffusionD. OsmosisChannel proteinSoluteCYTOPLASM6. What do you call the movement of water across a membrane?A. DiffusionB. EndocytosisС. ЕхосytosisD. Osmosis 7. When an animal cell put in a hypotonic environment, what would happen?A. An animal cell will swell.B. An animal cell will shrink.C. An animal cell will secrete enzymes.D. An animal cell will remain unchanged.8. During diffusion, when the concentration of molecules on both sides of amembrane is the same, the molecules willA. stop moving across the membrane.B. move across the membrane to the inside of the cell.C. move across the membrane to the outside of the cell.D. continue to move across the membrane in both directions.9. Which of the following statements describes selective permeability?A. The ability of the cell membrane to allow some things to pass throughwhile preventing other things from passing through.B. The movement of molecules from an area of concentration to an area oflow concentration.C. The movement of materials across the cell membrane that requires noenergy from the cell.D. The movement of materials through (or across) the cell membrane.10. When cells form a vesicle to take in materials, which form of transport isoccurring?A. EndocytosisВ. ЕхосytosisC. Facilitated diffusionD. Osmosis11.Which of the following statements shows the difference between active andpassive transport?A. Active transport uses hormones and passive transport does not.B. Active transport stores transport proteins and passive transportreleases.C. Active transport uses ATP as energy and passive transport does notrequire energy.D. Active transport does not need energy and passive transport uses ATPas energy.12. An animal cell that is surrounded by fresh water will burst because the osmoticpressure causesA. water to move into the cell.B. water to move out of the cell.C. solutes to move into the cell.D. solutes to move out of the cell.13. Which of the following transport processes moves the molecules against aconcentration gradient?A. Active transportB. DiffusionC. Facilitated diffusionD. Osmosis

Option A - Hydrophilic Hydrophilic term is made up of two words - Hydro means Water, and Philia…

1. The cell membrane consists primarily of a thin layer of amphipathic phospholipids "water-loving" and "water-fearing" region. Which term means "water-loving"? A. Hydrophilic B. Hydrophobic C. Nonpolar D. Tail 2. Which of the following processes moves molecules using cellular energy? A. Diffusion B. Facilitated diffusion C. Osmosis D. Pinocytosis 3. Which of the following statements is a function of a cell membrane? A. The cell membrane keeps the cell wall in place. B. The cell membrane stores water, salt, proteins, and carbohydrates. C. The cell membrane breaks down lipids, carbohydrates, and proteins from foods. D. The cell membrane regulates the movement of materials into and out of the cell. 4. When cells take in food particles through active transport, what is it called? А. Ехосytosis B. Osmosis C. Phagocytosis D. Pinocytosis

1. The cell membrane consists primarily of a thin layer of amphipathic phospholipids "water-loving" and "water-fearing" region. Which term means "water-loving"? A. Hydrophilic B. Hydrophobic C. Nonpolar D. Tail 2. Which of the following processes moves molecules using cellular energy? A. Diffusion B. Facilitated diffusion C. Osmosis D. Pinocytosis 3. Which of the following statements is a function of a cell membrane? A. The cell membrane keeps the cell wall in place. B. The cell membrane stores water, salt, proteins, and carbohydrates. C. The cell membrane breaks down lipids, carbohydrates, and proteins from foods. D. The cell membrane regulates the movement of materials into and out of the cell. 4. When cells take in food particles through active transport, what is it called? А. Ехосytosis B. Osmosis C. Phagocytosis D. Pinocytosis

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter5: Membranes And Transport

Section: Chapter Questions

Problem 3TYK: The freeze-fracture technique demonstrated: a. that the plasma membrane is a bilayer with individual...

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1. A researcher is studying White Blood Cells (Leukocytes) of a patient infected with Tuberculosis bacteria. He notices that the bacteria are in vesicles in the cytoplasm. How did the bacteria come to be inside the cell? a.Exocytosis b.Pinocytosis c.Receptor-mediated endocytosis d.Transcytosis Active transport must function continuously because ________________. a.facilitated transport opposes active transport b.not all membranes are amphiphilic c.diffusion is constantly moving solutes in opposite directions d.the cell needs ions outside the cell e.plasma membrane wear out
In which of the following ways does a bacterial cell differ from an animal cell? a. A bacterial cell is much larger than an animal cell. b. A bacterial cell has more mitochondria than an animal cell. c. A bacterial cell has RNA for its genetic material, whereas an animal cell does not. d. A bacterial cell does not have membrane-bound organelles, whereas an animal cell does.
1.There are different processes for transport of molecules of ions across cell membranes. Explain briefly each process a. Simples diffusion b. Facilitated diffusion via carrier proteins c. Facilitated diffusion via ion channels d. Primary active transport e. Secondary active transport f. Endocvtosis g. Exocytosis h. Transcytosis 2. List four Physical factors that affect the rate of diffusion and how they will affect it. 3. What kind of molecules can pass through the plasma membrane of the cells through simple diffusion? Give brief discussion. 4. List the three main parts of a cell and explain their functions. 5. Define an organelle. Which organelles are surrounded by a membrane and which are not? 6. What is the key difference between passive and active process? 7. Why RNA transcription can still serve the needs of the cell even if its operation is slow compared to DNA?
A cell contains 97% water and it is placed in a 5% salt solution. a) Which contains a higher concentration of water? i) cytoplasm of the cell ii) salt solution b) Which contains a higher concentration of solutes? i) cytoplasm of the cell ii) salt solution c) Cell membranes are selectively permeable, so which of the substances will move across it? i) water ii) salt iii) both water and salt iv) none d) What will happen to the volume of the cell? i) increase ii) decrease iii) stay the same i need help on this hw question. i tried it on my own but im not too sure if it's correct. the following are what i think the answers are: a) cytoplasm of the cell b) salt solution c) water d) decrease it would be helpful if you can confirm my answers and explain what i did wrong, thank you!
Why is the surface area of a cell so important in determining maximum cell size? a. a very large cell needs very little surface area relative to its volume b. a very small cell can't exchange material across its surface c. a very large cell would need to exchange a very large amount of material with the external environment d. a typical cell has more surface area than volume e. all of the above
Where in the cell do disulfide bonds form on a protein? A.In the nucleus. B.In the lumen of the cis-Golgi.C.The the lumen of the ER.D.On the extracellular side of the plasma membrane. E.In the cytoplasm.
1. Movement of molecules through the cell membrane: A). Define the difference between passive transport and active transport, B). Include examples of each. C). For each example specify the type of cell, the name of the membrane protein(s), and the substance that is being transported. 2. Energy and cellular functions: The evolution of the Prokaryotic cell type into the Eukaryotic cell type is about an increase in cell size and complexity. The Chloroplast and the mitochondrion represent important contributors to this process. A). Compare the structure of the Chloroplasts and the Mitochondrion in the evolution of Prokaryotes and Eukaryotes B). How does each contribute to the evolution of and success of the Eukaryote cell type.
1.Which component of the plasma membrane allows the immune system to differentiate between body cells and foreign cells or tissues? a.integral proteins b.carbohydrates c.cholesterol d.peripheral proteins e.phospholipids 2.Cyanide is a chemical that affects the function of mitochondria affecting the energy processing of cell. What will happen to a cell if it was exposed to an isotonic solution of cyanide? a.the cell will die b.remain the same c.mitochondria will shrink d.mitochondria will swell
1) All of the following are functions of proteins within a membrane except __________. A)Maintaining the fluidity of membranes B)transport ions and other polar substances C)receptors to bond molecules outside of the cell D)helping the body to recognize its own cells 2) Which of the following organelles is not part of the endomembrane system A)mitochondria B)golgi apparatus C)lysosomes D)rough endoplasmic reticulum 3) Which cytoskeletal element is composed of actin and is involved with muscle contraction and provided strength to cells during stretching and compression? A)Microfilimants B)Intermediate filaments C)Microtubules D)Flagella
Compared with a smaller cell, a larger cell of the sameshape has(A) less surface area.(B) less surface area per unit of volume.(C) the same surface-area-to-volume ratio.(D) a smaller cytoplasm-to-nucleus ratio
1. Imagine a hypothetical situation in which an animal cell such as a hepatocyte or a macrophage would completely lose the ability to produce membrane proteins. a) What would be the structural and molecular organization of such a hypothetical cell? b) How do you think this situation would affect the function of that cell? Be as thorough as you can.
9)Two solutions are separated by a selectively permeable membrane that is not permeable to glucose. On one side of the membrane, solution A contains 10 percent glucose and on the other side, solution B contains 25 percent glucose. Which of the following is true? Select one: a. Solution A is hypertonic. b. The solutions are isotonic. c. Water would move from solution A to solution B. d. Glucose would move from solution B to solution A.