MHT CET 202624 AprilMorning Shift
- Exam
- MHT CET
- Year
- 2026
- Date
- 24 April
- Shift
- Morning Shift
- Subject
- Biology
- Chapter
- Transport in Plants
MHT CET 2026 · 24 April · Morning Shift · Biology · Transport in Plants
Which one of the following is NOT needed for the facilitated...
Which one of the following is NOT needed for the facilitated diffusion in plants?
Options
- AConcentration gradient
- BAquaporins
- CIon channel
- DExpenditure of energy
Correct answer
D. Expenditure of energy
Step-by-step solution
Facilitated diffusion is a type of passive transport that allows substances to cross cell membranes with the assistance of special transport proteins, such as aquaporins and ion channels.
Since it is a passive process, it occurs along the concentration gradient (from a region of higher concentration to a region of lower concentration).
Because the movement is down the concentration gradient, it does not require any expenditure of metabolic energy (ATP). Therefore, the expenditure of energy is not needed for facilitated diffusion.
Answer: Expenditure of energy
Since it is a passive process, it occurs along the concentration gradient (from a region of higher concentration to a region of lower concentration).
Because the movement is down the concentration gradient, it does not require any expenditure of metabolic energy (ATP). Therefore, the expenditure of energy is not needed for facilitated diffusion.
Answer: Expenditure of energy