Biology

What is matter in organisms made of?

• elements
• water
• elements combined as compounds
• all of the above are matter that makes up organisms

A cation is formed when an atom loses an electron or electrons to another atom creating an overall positive charge. 

• True
• False

Which of the following is not a compound?

• NaCl
• C₆H₁₂0₆
• H₂0
• o₂

The negative subatomic particle in an atom is the

• neutron
• proton
• electron
• both neutrons and electrons

The nucleus of an atom contains

• neutrons and protons

• neutrons and electrons

• protons and electrons

What two elements make up water?

• Helium and oxygen
• Hydrogen and oxygen
• helium and carbon
• oxygen and carbon

Attractions between water molecules are called

• Covalent bonds
• Ionic bonds
• Polar bonds
• Hydrogen bonds

What molecule is this

• sucrose
• protein
• glucose
• cellulose

What word describes when water is attracted to other substances?

• cohesion
• adhesion
• capillary action
• surface tension

What do you call any substance that dissolves another substance?

• Solvent

• Height

• Atoms

• Oxygen