BIO 152 Exam 1 question with correct answers latest 2023

BIO 152 Exam 1 question with correct answers latest 2023 Plants lose water to the environment from the surface of the _______(anatomical region) by the process of __________. - correct answer leaves; transpiration Water loss from transpiration accounts for approximately _____% of the total water loss to the plant. - correct answer 90% Water loss from transpiration occurs through_________ (specific structure on underside of leaves). These structures open to allow for exchange of _______ during photosynthesis. - correct answer stomata; gases Water loss combined with production of solutes in the stem system of the plant creates _______ _________ gradients that _____ water up from the roots to the plant body. - correct answer solute/water potential; pull Transport of water through xylem is driven by _______ _______ differences, which are calculated in MPa. These pressure differences are usually _____ (sign), which means water molecules are _____ to new locations in the plant, rather than being pushed. - correct answer water potential; negative; pulled Water _____ for plant cells represent the likelihood for water to move into a solution (or cell) compared to pure water. - correct answer potential In general, negative water potentials _______ water towards, and positive potentials _____ water away from the solution (or cell). - correct answer pull; push If a cell's volume increases to the point that the ______ _______ begins pushing on the cell wall, then that cell is said to have ______ pressure. - correct answer plasma membrane; turgor Resistance from the cell wall is referred to as _____ pressure. It is measured as the _______ potential of the cell. - correct answer physical; pressure