Ch 3 Review (Test)

Why is carbon unique?

• Carbon can form 2 bonds

• Carbon can form 4 bonds

• Carbon can form 1 bond

• Carbon can't form bonds

Tags

NGSS.HS-LS1-6

Why is carbon important for living things?

• It can form short, simple carbon chains

• It can form large, complex molecules

• It can form covalent bonds with other carbon atoms

• It can form covalent bonds that exists on a single plane

Tags

NGSS.HS-LS2-5

Which reaction is this showing?

• Hydrolysis

• Dehydration Synthesis

• Glycolysis

• Photosynthesis

How are carbon and protein functions different?

• Proteins can store information

• Proteins can catalyze (speed up) chemical reactions

• Proteins store energy for you to use

• Proteins make cell membranes waterproof

In a chemical reaction, substance A is converted to substance B. What did the enzyme do?

• It made the pH more medium

• The enzyme gave energy

• The enzyme dissolved substances

• It sped up the reaction without being used up

How can a change in pH/temperature change an enzyme?

• pH can change the enzyme to change its shape

• pH can remove energy

• pH can add new molecules

• pH can cause the enzyme to react with something new

Tags

NGSS.HS-PS1-5

What elements do ALL organic molecules have?

• Carbon, Hydrogen, Oxygen

• Carbon, Nitrogen, Magnesium

• Nitrogen, Sulfur, Calcium

• Oxygen, Phosphorus, Nitrogen

Tags

NGSS.HS-LS1-6

Look at the monomers and shape, what organic molecule is being made?

• Lipids

• Carbohydrate

• Protein

• Nucleic Acid

Tags

NGSS.HS-LS1-6

Enzymes are catalysts. What does this mean?

• They change the products of the reaction

• They change the speed of the reaction

• They change the temperature of the reaction

• They change the pH of the reaction

Tags

NGSS.HS-LS2-5

Which statement is true about the enzyme performance?

• Pepsin performs best at high basic pHs

• Catalase performs best at acidic pHs

• Enzymes work the best at different pHs

• Both pepsin and catalase would work well in pH 2 (stomach)