Consider the Structures Below

question 100

Multiple Choice

Consider the structures below.An L-aldohexose,X,is treated with nitric acid to yield an optically inactive aldaric acid.The same L-aldohexose,X,is subjected to a Ruff degradation and the degradation product is oxidized with nitric acid to produce an optically inactive aldaric acid.Which is a possible structure for X?

• A) I
• B) II
• C) III
• D) IV
• E) V

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Definitions:

Prostaglandins

A collection of lipid-based substances that possess a wide range of effects similar to hormones in animals.

Seminal Vesicles

(1) In mammals, glandular sacs that secrete a component of semen (seminal fluid). (2) In some invertebrates, structures that store sperm.

Spermatogenesis

The process by which spermatozoa are produced from male primordial germ cells by way of mitosis and meiosis, occurring in the testes.

Ejaculatory Duct

A short duct that passes through the prostate gland and opens into the urethra; receives semen from the vas deferens.