Florida Biology EOC Practice Test

Question: 1 / 400

Which of the following processes does NOT require energy and moves with the concentration gradient?

Active transport

Osmosis

Passive transport

The correct answer is passive transport. This process does not require energy because it relies on the natural movement of molecules from an area of higher concentration to an area of lower concentration, following the concentration gradient. In passive transport, substances such as small, nonpolar molecules and certain ions move through cell membranes without the input of energy, allowing cells to maintain homeostasis efficiently.

In contrast, active transport requires energy because it moves substances against their concentration gradient, from an area of lower concentration to one of higher concentration. This process is essential for maintaining the proper balance of ions and molecules within the cell. Osmosis, which specifically refers to the movement of water across a semi-permeable membrane, is a form of passive transport but is specifically focused on water. Vesicle transport involves the energy-dependent movement of large molecules or particles into or out of the cell through vesicles, further underscoring the need for energy in that process.

Get further explanation with Examzify DeepDiveBeta

Vesicle transport

Next Question

Report this question

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy