Question

1. joshua observed that the lettuce plants in his garden wilted after several days of drought. the next day there was a downpour of rain, and the leaves began to swell. what cellular process caused this effect in the lettuce plants?

a. osmosis
b. photosynthesis
c. active transport
d. cellular respiration

Explanation:

Osmosis is the movement of water across a semi - permeable membrane from an area of high water concentration to an area of low water concentration. After drought, plant cells have low water content. When it rains, water enters plant cells by osmosis, causing the leaves to swell. Photosynthesis is about converting light energy to chemical energy, active transport requires energy to move substances against a concentration gradient, and cellular respiration is about breaking down glucose for energy, none of which directly explain the swelling due to water intake.

Answer:

A. osmosis