Exploring the Chemistry of Life in Biology Basics

The video tutorial covers the chemistry of life, emphasizing the importance of chemistry in understanding biological processes. It introduces basic concepts of atoms, elements, and the organization of life from cells to the biosphere. The tutorial highlights the unique properties of water, such as cohesion, adhesion, and its role as a universal solvent. It also discusses water's impact on climate and its significance for living organisms, particularly in regulating temperature and supporting life in aquatic environments.

What is the smallest part of an element that retains the properties of that element?

• Cell

• Molecule

• Atom

• Compound

Which of the following elements is NOT one of the six essential elements for life?

• Helium

• Hydrogen

• Carbon

• Sulfur

What is the most basic unit of life?

• Atom

• Molecule

• Cell

• Tissue

What type of bond holds the atoms in a water molecule together?

• Hydrogen bond

• Metallic bond

• Covalent bond

• Ionic bond

What does it mean for a molecule to be polar?

• It has an equal distribution of charges

• It is non-reactive

• It has an unequal distribution of charges

• It does not dissolve in water

Which property of water allows it to stick to other substances?

• High specific heat

• Adhesion

• Cohesion

• Surface tension

Why is water's high specific heat important for living organisms?

• It allows water to dissolve many substances

• It helps regulate temperature in cells and environments

• It makes water less dense as a solid

• It creates surface tension

Why does ice float on water?

• Ice is more dense than water

• Ice is less dense than water

• Ice has a higher specific heat

• Ice is hydrophobic

What is a solvent in a solution?

• The resulting mixture

• The solid form of a substance

• The substance that does the dissolving

• The substance that gets dissolved

What does 'hydrophobic' mean?

• Water-loving

• Water-fearing

• Attracts water

• Dissolves in water