Exam 3: Molecules of Life

The combination of glucose and galactose forms ____, the principle sugar found in milk.

Humans are unable to digest ____.

Animals store energy as which type of carbohydrate?

Biological molecules are composed of building blocks that are linked together to form ____.

Match each item with the correct statement. -complex carbohydrates

Cholesterol is a(n) ____.

Match the chemical reaction with the correct description. Choices may be used more than once. -an enzyme covalently joins two molecules together

Monosaccharides have a carbon-to-hydrogen-to-oxygen ratio of ____.

Match the chemical reaction with the correct description. Choices may be used more than once. -water is produced

Which part of a fatty acid is hydrophilic?

Most vegetable oils are ____.

Cell membranes contain transmembrane proteins, which span the lipid bilayer with portions of the protein protruding into the aqueous external and internal cellular environments. The protein regions that span the membrane are ____, while the regions that extend from the membrane are ____.

The nucleotide that serves as an energy carrier in cells is ____.

A −COOH group is characteristic of ____ and functions to ____.

Match the chemical reaction with the correct description. Choices may be used more than once. -chemical reaction builds polymers from monomers

An −OH group is characteristic of ____ and functions to ____.

Amino acids are the building blocks for ____.

Match each biological molecule with the correct description. Some choices may be used more than once. -DNA and RNA

​What is the most abundant and richest source of energy in vertebrate bodies?

Match each biological molecule with the correct description. Some choices may be used more than once. -energy source for plants and animals