Biochemistry Introduction

An organic compound is made of the following elements:

• carbon and hydrogen

• carbon and oxygen

• carbon, oxygen, and hydrogen

• hydrogen and oxygen

Carbon is a special element because it can form _____ bonds

• 1

• 2

• 3

• 4

What are the four major categories of biomolecules?

A key theme in science is that structure is related to

• shape

• function

• durability

Wolves eat elk in Yellowstone. When the last wolf was killed in the 1970’s, the number of elks increased a lot.

• matter and energy

• cause and effect

• scale and proportions

• stability and change

When we are hot, our blood vessels in our arms and legs begin to swell – to allow the heat to escape our body.

When we are cold, our blood vessels become narrow to help prevent heat from escaping our body.

• systems

• scale and proportions

• stability and change

• matter and energy

The process of eating, digesting, and breaking the bonds in food.

• matter and energy

• cause and effect

• scale and proportions

The four major elements of life are:

Essential inorganic compound needed for life

• glucose

• water

• fat

• protein

Molecule that stores the greatest amount of energy

• carbohydrates

• lipids

• proteins

• nucleic acids