Fall Semester Benchmark Review

Which elements are the most abundant in biomolecules?

• Hydrogen, oxygen, nitrogen, phosphorus

• Carbon, fluorine, oxygen, phosphorus

• Carbon, hydrogen, iodine, oxygen

• Carbon, hydrogen, oxygen, nitrogen

Tags

NGSS.HS-LS1-6

Lipids and carbohydrates can both provide your body with energy, but lipids

• contain a large amount of water

• have twice as many calories

• are more easily broken down

• are made of monosaccharides

Which organic molecule would a long-distance runner most likely choose to eat two hours before a race?

• A protein, because it builds muscle mass.

• A lipid because it provides long term energy storage.

• A carbohydrate because it releases energy quickly.

• A protein, because it transports oxygen into the blood stream.

How are the functions of a carbohydrate and a lipid similar?

• Both are a source of energy.

• Both are replicated during meiosis.

• Both lower the activation energy of reactions.

• Both dissolve nutrients in the digestive system.

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-4

Which of the following is a term that refers to an energy source obtained from plants?

• Cellulose

• Glycogen

• Lipids

• Starch

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

Which biomolecules is involved in long term energy storage?

• Carbohydrates

• Lipids

• Proteins

• Nucleic Acids

Which biomolecule has an example of chitin which makes up exoskeletons?

• Carbohydrates

• Lipids

• Proteins

• Nucleic Acids

Many proteins function as enzymes. An enzyme is a molecule that catalyzes

or speeds up chemical reactions in the body.

• TRUE

• FALSE

Hemoglobin is a protein that binds to oxygen and helps carry it in the blood and deliver it to other parts of the body. This is an example of what type of protein?

• Transport

• Signaling

• Storage

• Contractile

Which of the following determines an enzyme's effectiveness?

• heat
• pH (acidic or basic)
• not enough enzymes; too many substrates
• all are correct