The Chemistry of Life

Anything that takes up space and has mass

• Matter

• Compounds

• Theories

• Don't pick this one

An ____________________ is a pure substance. It cannot be broken down into other types of substances.

• element

• apple

• elephant

• opossum

All of the known elements are arranged in a ________________ according to their specific properties.

• periodic table

• random pattern

• rectangle

• list

A substance that consists of two or more elements and has a unique composition that is always the same is __________________________

• a chemical compound

• an element

• an atom

• an argument

The forces that holds molecules together are called

• chemical bonds

• forces

• attractions

• atoms

Why is carbon so basic to life? (check all that apply)

• Forms stable bonds with many elements

• Forms bonds with itself in different ways

• Makes two covalent bonds

• Is found in molecules of water

These organic molecules provide energy to cells, store energy, and form body structures of plants.

• Carbohydrates

• Fats

• Lipids

• Nucleic acids

These organic molecules store energy, form cell membranes, and carry messages

• Lipids

• Proteins

• Carbohydrates

• Nucleic Acids

These organic molecules contain instructions for proteins, pass instructions from parents to offspring, help cells to assemble proteins.

• Nucleic Acids

• Proteins

• Lipids

• Fats

These organic molecules help cells keep their shape, make up muscles, and speed up chemical reactions

• Proteins

• Fats

• Lipids

• Fatty Acids