allery**Water potential ($\psi$)** of pure water is:
AZero (and adding solutes makes it negative)
BAlways positive
CEqual to 1 atm
DCannot be determined
Answer & Solution
Correct answer: A. Zero (and adding solutes makes it negative)
Water potential of pure water at STP = 0 by convention.
Solutes lower it (more negative).
Pressure (turgor) raises it.
Water flows from high (less negative) to low (more negative) water potential.
Keep practising Unit 2G: Osmoregulation & Membrane Dynamics
Browse all Unit 2G: Osmoregulation & Membrane Dynamics questions for AP Biology, or explore more Biology topics.
Related questions
Cells that possess a membrane-bound, well-organised nucleus are called:A feature common to prokaryotes and many eukaryotes (e.g. plants, fungi) isRibosomes are organelles that are:The scientist who first observed and described a living cell was:DNA content at various cell cycle phases (C = haploid DNA content):Number of bivalents (paired homolog pairs) at metaphase I of a cell with 2n = 12:Estrogen and progesterone, secreted mainly by ovaries during reproductive cycle, are:Cortisol secretion peaks in the: