REVIEW QUIZ EOC PART 1

Why does ice stay at the top of oceans instead of sinking to the bottom?

•  Ice is colder than liquid water.
• Ice is less dense than liquid water.
• Ice is more dense than liquid water.
• Ice is warmer than liquid water.

Large bodies of water, such as lakes and oceans, do not quickly fluctuate in temperature. What is the reason for this phenomenon?

• Water is an acid.
• Water is a versatile solvent.
• Water has a high heat capacity.
•  Water acts as a buffer.

 Small insects can walk across the surface of calm water. Their feet push the surface of the water down slightly, somewhat like a person walking across a trampoline, but they do not break the surface. What is the best explanation for why this happens?

• The insects are light enough so that they do not break the hydrogen bonds holding the water molecules together
• The insects actually use their wings to hover slightly above the water's surface and they only skim it with their feet
• The insects' feet are non-polar, so they are repelled by the polar water molecules and are pushed away from the water's surface
• The insects are small enough to see the individual water molecules, so they are able to step carefully from one molecule to the next

A florist places a bouquet of white carnations in water containing blue dye. After a time, the flowers turn blue. What process helped the carnations to change color?

• Specific heat 
• Surface tension
• Cohesion and adhesion of water molecules 
• Formation of covalent bonds between hydrogen and oxygen molecules

A florist places a bouquet of white carnations in water containing blue dye. After a time, the flowers turn blue. What process helped the carnations to change color?

• Specific heat 
• Surface tension
• Cohesion and adhesion of water molecules 
• Formation of covalent bonds between hydrogen and oxygen molecules

Why does water move from the roots to the leaves of plants?

• Water is pushed by solutes
• Capillary action pulls the water molecules like a chain
• Water is pulled by gravity
• Water’s cohesion causes it to “pull” towards the leaves

The curve in this meniscus is caused by the attraction between the water and the glass known as

• solute

• surface tension

• cohesion

• adhesion

Match the following. Match the correct monomer to the biomolecule.

• Monosaccharides

• Carbohydrate

• Fatty acids and Glycerol

• Nucleic acid

• Nucleotides

• Lipid

• Amino acids

• Protein

Match the following. Match the correct polymer to the biomolecule.

• RNA, DNA

• Nucleic acid

• Fats, Oils, Waxes and Steroids

• Protein

• Polypeptide

• Lipid

• Polysaccharide

• Carbohydrate

What biological molecule is used to store and transmit hereditary, or genetic, information?

• Carbohydrates

• Lipids

• Proteins

• Nucleic Acids