Choose the One Most Appropriate Answer for Each

question 46

Multiple Choice

Choose the one most appropriate answer for each. Each letter will be used once.
-gibberellin

• A)growth response that orients parts of a plant in a direction influenced by light
• B)burst of hydrogen peroxide and nitric oxide that causes infected cells to commit suicide
• C)an organism's response to changes in length of day relative to night
• D)organelle involved in sensing gravity
• E)light-sensitive pigment that helps set plant circadian rhythm based on length of night
• F)flowering after a long season of cold temperatures
• G)closes stomata in times of stress
• H)initiates fruit ripening in nearby fruits
• I)flowers only when hours of darkness fall below a critical value
• J)flavonoid in cocoa responsible for the unusual absence of heart disease in the Kuna
• K)occurring on a 24-hour cycle
• L)flowers only when hours of darkness are greater than some critical value
• M)activates systemic acquired resistance
• N)inhibits the growth of lateral roots
• O)mobilizes food reserves in germinating seeds

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Definitions:

Membranous Urethra

The section of the urethra that passes through the urogenital diaphragm, primarily in males.

Corpus Spongiosum

Median column of erectile tissue located between and ventral to the two corpora cavernosa in the penis; posteriorly it forms the bulb of the penis, and anteriorly it terminates as the glans penis; it is traversed by the urethra. In the female, it forms the bulb of the vestibule.

Mucous-Secreting Glands

Glands that produce and secrete mucus, which protects and lubricates various parts of the body, such as the respiratory and digestive tracts.

Cuboidal Epithelium

A type of epithelial tissue with cube-shaped cells, often found in glandular ducts and parts of the kidney, involved in secretion and absorption.