During facilitated diffusion, which of the following do molecules use as transportation when they are too large to move through a cell membrane? A. air pockets B. vacuoles C. the endoplasmic reticulum D. protein channels​

Glucose, also called grape sugar, blood sugar or corn sugar, is among the simplest and one of the primary naturally occurring sugars. produced naturally by plants as the primary photosynthesis product, it is heavily used by living beings as a main energy source and is necessary for cellular respiration. chemically, it is a monosaccharide carbohydrate and serves as a building block for complex sugars like starch.

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