Small amounts of dilute ethanol can cause drunkenness, a socially widespread practice. However, even a small quantity of pure ethanol (absolute alcohol) can be lethal, and long-term alcohol consumption is linked to various health issues.

Ethanol’s solvent properties make it a common ingredient in medicines such as tincture iodine, cough syrups, and tonics, as it is soluble in water in all proportions.

Plant cells change shape by altering water content, leading to swelling or shrinking. This process, unlike animal muscle cells, results in the required changes in shape for movement.

In the sensitive plant, movement occurs at a point different from the point of touch. The communication of touch-related information utilizes electrical-chemical means among cells.

The sensitive plant detects touch through electrical-chemical means, communicating information from cell to cell. Plant cells change shape by adjusting water content, leading to swelling or shrinking and, consequently, leaf movement.

The directional movement of a seedling, such as the root going down and the stem coming up, is a result of growth. If growth is prevented, the seedling will not display the expected movement.

The movement of a sensitive plant’s leaves is rapid and independent of growth, whereas the directional movement of a seedling is attributed to growth; if growth is hindered, the seedling will not exhibit movement.

Plants, such as the sensitive plant, respond to touch through rapid movements of their leaves, a process not involving muscle action, but rather a quick response mechanism.

Plants seem to move in response to stimuli because of directional or tropic growth. Environmental triggers like light or gravity influence the direction in which plant parts grow, creating the illusion of movement.

Tropic movements in plants are directional responses to environmental triggers such as light or gravity. Shoots exhibit positive phototropism by bending towards light, while roots show negative phototropism by bending away from light.