The Chemical Basis for Life - Module A

Which of the following properties of water enables it to move from the roots to the leaves of plants?

• Water expands as it freezes.
• Water is an excellent solvent.
• Water exhibits cohesive behavior.
• Water moderates temperature.

Which is NOT a unique property of water?

• Frozen water floats on liquid water.
• Water covers most of the Earth’s surface and retains a large amount of heat.
• Water molecules stick to each other through hydrogen bonds.
• Water cools very rapidly.

Tags

NGSS.HS-ESS2-5

A group of cells that have similar functions are referred to as a(n) ____? Examples are nervous, epithelial, muscle and connective

• cells

• tissues

• organs

• atoms

Tags

NGSS.HS-LS1-2

Monomers combine to form ________ through the process of ________.

• polymers; hydrolysis
• polymers; dehydration synthesis
• monomers; hydrolysis
• monomers; dehydration synthesis

Proteins are made of monomers called ___________

• Nucleotides
• Monosaccharides
• Amino Acids
• Glycerol and fatty acids

Tags

NGSS.HS-LS1-6

Enzymes are capable of increasing the rate of a chemical reaction within a living cell.  Enzymes accomplish this through which of the following means?

• reducing the number of products   
• reducing the activation energy
• increasing the temperature of the cell
• increasing the concentration of reactants 

Tags

NGSS.HS-PS1-5

Changes in pH and temperature can damage an enzymes active site. What is this called?

• reusable

• catalyst

• specific

• denaturation

Tags

NGSS.HS-PS1-5

Which macromolecule stores energy, insulates us, and makes up part of the cell membrane?

• lipids
• proteins
• carbohydrates
• nucleic acids

Tags

NGSS.MS-LS1-7

What is the purpose  of an enzyme?

• give permission for the reaction
• raise activation energy
• speed up reactions
• control how many reactions occur

The type of compound that contains carbon atoms bonded to other carbon atoms in addition to oxygen, nitrogen and hydrogen.

• lipid

• organic
• molecule
• carbohydrate

Tags

NGSS.HS-LS1-6