Movement of Nutrient Molecules Across the Lining of the Digestive

question 32

Multiple Choice

Movement of nutrient molecules across the lining of the digestive chamber and into the body's internal environment is called ____.

• A)absorption
• B)excretion
• C)mechanical digestion
• D)ingestion
• E)chemical digestion

---

Definitions:

S-strain Bacteria

A strain of bacteria that possesses a smooth capsule made of polysaccharides, making it virulent by protecting it from the host's immune system.

Antiparallel

Said of a double-stranded nucleic acid in which the 5' to 3' direction of the sugar-phosphate backbone of one strand is reversed in the other strand.

Crystallographic Data

Information obtained from crystallography, a method used to determine the atomic and molecular structure of crystals, revealing the arrangement of atoms in the crystalline solid.

Watson

James Watson, an American molecular biologist, geneticist, and zoologist, best known as one of the co-discoverers of the structure of DNA in 1953.