BIOLOGY QUIZ on Chapter 2 "The Chemistry of Life"

Which of the following properties of water can BEST explain how water molecules stick to the sides of a graduated cylinder?

• surface tension

• expansion

• adhesion

• cohesion

Which of the following properties of water can BEST explain how the basilisk lizard can "walk" on water without sinking?

• heat capacity

• expansion

• adhesion

• cohesion

Which statement best explains why water is the most important substance for sustaining life on Earth?

• Water insulates Earth from the cold temperatures of outer space

• Water moderates Earth's climate by absorbing large amounts of heat

• Water builds organic molecules out of its living parts

• Water contains stored energy that powers chemical reactions

Tags

NGSS.HS-ESS2-5

Water is essential for life. Its special properties make water the most important molecule in plant life. Which of the following properties of water allows it to move from the roots to the leaves of a plant?

• Water exhibits cohesive behavior

• Water is able to moderate temperature

• Water expands as it freezes

• Water is an excellent solvent

Which of the following organic molecules is most closely related to nucleic acids?

• proteins

• nucleotides

• Lipids

• monosaccharides

Which of the following organic molecules is most closely related to carbohydrates?

• proteins

• nucleotides

• Lipids

• monosaccharides

Which statement about enzymes is not true.

• Each enzyme is specific, because of its shape and catalyzes only certain reactions.

• Enzymes are destroyed when they are used and must be made each time a reaction takes place.

• Most enzymes are proteins

• Enzymes form a temporary bond with the substrate

Which type of carbohydrate is this?

• monosaccharide
• disaccharide
• polysaccharide
• glyceride

The 4 macromolecules are

• vitamins, lipids, water, micronutrients
• micronutrients, macronutrients, water, vitamins
• Lipids, Waxes, Vitamin A, Water
• Carbohydrates, Lipids, Proteins, Nucleic Acids

What is a substance called if it speeds up a chemical reaction?

• reusable
• catalyst
• specific
• fragile