WebWhich of the following molecules are most likely to pass through the membrane by facilitated diffusion? a. H2O and sucrose b. H2O and O2. c. CO2 and O2. d. CO2 and H2O. a. H2O and sucrose Red blood cells put in a hypertonic solution will a. not be affected in any way. b. form linear edges. c. shrivel and become crenated. WebJan 17, 2024 · Only glucose (simple sugar) is present in the distilled water outside the visking tubing. Glucose molecules are small enough to pass through the tiny pores on …

Why can fat-soluble molecules pass through cell membrane?

WebMar 27, 2024 · The heads align along the inner and outer boundaries of the cell membrane, while the tails occupy the space in between. Only small, nonpolar molecules can pass … WebThe simplest mechanism by which molecules can cross the plasma membraneis passive diffusion. During passive diffusion, a molecule simply dissolves in the phospholipid bilayer, diffuses across it, and then … simple modern boot

Chapter 7-Mastering Biology Flashcards Quizlet

WebSome molecules, such as carbon dioxide and oxygen, can diffuse across the plasma membrane directly, but others need help to cross its hydrophobic core. In facilitated diffusion, molecules diffuse across the plasma membrane with assistance from membrane proteins, such as channels and carriers. WebSome small molecules, such as water, can pass directly through the membrane through small gaps in between the phospholipids making up the lipid bilayer. Larger molecules, such as glucose, and charged partides, such as ions, cannot pass through these gaps. WebTerms in this set (156) The membrane molecule that is made up of a polar region with two nonpolar fatty acid tails Phospholipids Is a double lipid layer with proteins inserted in it, which surrounds every cell individually Plasma Membrane The membrane molecule responsible for aiding passage of polar molecules into and out of the cell simple modern black and chrome coffee table