Chemistry of Life Study Guide

Front

The diagram below represents a sequence of events that occurs in living things. Letter X represents

Back

organic molecules

Front

Hemoglobin, insulin, albumin, and maltase, which are composed of chains of amino acids, are examples of

Back

protein

Front

Vegetable oils, such as corn oil, belong to which general class of organic substances? Options: lipids, proteins, carbohydrates, salts

Back

lipids

Front

The major role of carbohydrates in the human diet is to

Back

supply energy for the body

Front

Which group consists entirely of organic molecules?

Back

protein, starch, fat

Front

Why is it advantageous for animals to store fats for use when food resources are scarce?

Back

Much energy can be gained by breaking the bonds between atoms in the fats.

Front

What characteristic shared by all enzymes, hormones, and antibodies determines their function?

Back

shape of their molecules

Front

More energy can be released from a fat molecule than from a glucose molecule because the fat molecule contains more

Back

chemical bonds

Front

The organic compounds that scientists use to cut, copy, and move segments of DNA are

Back

enzymes

Front

Complete the blanks: Organic compounds, such as proteins and starches, are too A. ______ to diffuse into cells. Proteins are digested into B. ______ and starches are digested into C. ______.

Back

A—large, B—amino acids, C—simple sugars