Celery Stalks That Are Immersed in Fresh Water for Several

question 6

Multiple Choice

Celery stalks that are immersed in fresh water for several hours become turgid (stiff) . Celery stalks left in a 0.15 M salt solution become flaccid (limp) . From this we can deduce that

• A) the fresh water and the salt solution are both hypertonic to the cells of the celery stalks.
• B) the fresh water and the salt solution are both hypotonic to the cells of the celery stalks.
• C) the fresh water is hypertonic and the salt solution is hypotonic to the cells of the celery stalks.
• D) the fresh water is hypotonic and the salt solution is hypertonic to the cells of the celery stalks.
• E) the fresh water is isotonic and the salt solution is hypertonic to the cells of the celery stalks.

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Definitions:

Leaves

The green, photosynthetic organs of plants and trees, primarily responsible for the absorption of light energy and carbon dioxide to produce oxygen and glucose through photosynthesis.

Stems

The main structural axes of plants, responsible for supporting leaves, flowers, and fruits and for transporting fluids between them.

F.C. Steward

A botanist known for his pioneering work in plant physiology and tissue culture techniques.

Plant Physiologist

A scientist who studies the physical and chemical functions of plants, including how plants respond to their environment.