Question 26
A substance moves across a cell membrane from a higher concentration to a lower concentration, without using the cell’s energy or the use of membrane proteins, this is due to _________.
Diffusion - Definition, Examples and Types | Biology Dictionary
a
diffusion
b
sodium potassium pumps
c
endocytosis
d
facilitated diffusion
b
diffusion
The correct answer is a) diffusion.
Diffusion is the process by which particles move from an area of higher concentration to an area of lower concentration. This movement occurs due to the random motion of particles and does not require any additional energy from the cell or the use of membrane proteins.
To find the answer to this question, you can use your knowledge about how substances move across cell membranes. By understanding the concept of diffusion, you would know that substances move from an area of higher concentration to an area of lower concentration without the need for energy or membrane proteins.