Unit 3: Biomolecules & Enzyme Review

John is a nutritionist. He is explaining to his client, Aria, about the composition of different biomolecules. He mentioned that one of them is made up of amino acids. Which biomolecule was he referring to?

• protein

• lipid

• carbohydrate

• nucleic acid

Emma is studying biology and she came across a biomolecule that is made up of monosaccharide. Can you tell her which biomolecule it is?

• lipid

• carbohydrate

• protein

• nucleic acid

Ethan, Avery, and Liam are stranded on a deserted island and have limited food resources. They have a choice between a carbohydrate-rich food, a protein-rich food, a lipid-rich food, and a nucleic acid-rich food. Which one would provide them with the MOST amount of energy to survive?

• Carbohydrate-rich food

• Protein-rich food

• Lipid-rich food

• Nucleic Acid-rich food

Avery and Noah are studying how animals survive during winter. They learn that certain biomolecules are used by animals during hibernation. Which biomolecule will bear use during hibernation?

• carbohydrate

• nucleic acid

• protein

• lipid

Benjamin and Sophia are preparing for a marathon and are about to have their pre-run meal. Which biomolecule should they consume to fuel their run?

• lipid

• carbohydrate

• nucleic acid

• protein

John is a bodybuilder and wants to develop his muscles. Which biomolecule should he focus on in his diet?

• carbohydrate

• nucleic acid

• lipid

• protein

During winter, Rohan noticed that his body was able to retain heat better than usual. Which biomolecule in his body could be responsible for this insulation?

• protien

• lipid

• carbohydrate

• nucleic acid

Ava and William are discussing their lunch choices. Ava has a plate of butter (lipid) and William has a bowl of rice (carbohydrate). If you think of these as energy sources, would you say that the butter functions in short term energy storage while the rice functions in long term energy storage?

• True

• False

Evelyn and Mason are learning about the "lock and key hypothesis" in their biology class. This hypothesis attempts to explain the mechanism of?

• Vacuole formation

• Pinocytosis

• Sharing of electrons

• Enzyme are specific to a substrate

Samuel is conducting an experiment to determine the optimum pH for an enzyme. Which of the following conclusions can be drawn from his graph?

• The optimum pH of the enzyme is 6.6.

• The optimum pH of the enzyme is 3.8

• The enzyme’s activity increases as pH increases 5.0 to 9.0

• The enzyme’s activity is greater around pH of 8.0 .