usa community Colle saplinglearning.com/ibisams/mod/ibis/view.php?id-5916146 tio

Question

usa community Colle saplinglearning.com/ibisams/mod/ibis/view.php?id-5916146 tion 14 of 22 Sapling Learning Which statements descnibe examples of facilitated diffusion? A liver cell takes in ethanol molecules directly through its plasma membrane after the ingestion of alcohol. Aucot oro ohtratian raes suply using a membrane protain to transport A neuron allows sodium ions to enter the cell down their concentration gradient using a membrane channel. An inner ear hair cell allows potassium ions to flow down their concentration gradient after sound waves stimulate a membrane protein A neuron moves sodium ions out of the cell against their concentration gradient using a membrane pump and cellular energy 1 An epithelial cell releases calcium ions against their concentration gradient using a membrane pump and the energy of another concentration gradient. int

Explanation / Answer

The correct answer is option B, C and D.

Option A is wrong because it does not use any membrane protein or channel to move molecules down their concentration gradient.

Last two options are wrong because facilitated diffusion does not occur against the concentration gradient. It has to go down their concentration gradient that is higher concentration to lower concentration.

Related Questions

Navigate

• Browse (All)
• Browse U
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.