Biology Review

Which compounds interact to form proteins?

• nucleic acids

• amino acids

• simple sugars

• fatty acids

Tags

NGSS.HS-LS1-6

Which statement describes a property shared by lipids and carbohydrates?

• Both dissolve in water.

• Both are sources of energy for a cell.

• Both have the same number of oxygen atoms.

• Both have the same number of carbon-hydrogen bonds.

Scientists isolate an organic macromolecule that plays a role in digestion. When this polymer is not present, the rate of one of the chemical reactions required for digestion increases greatly. Which category of macromolecules are these scientists most likely studying?

• carbohydrate

• lipid

• nucleic acid

• protein

Tags

NGSS.HS-LS1-1

What structural difference explains why lipids provide more energy to a cell than an equal mass of proteins and carbohydrates?

• Lipids have more carbon-hydrogen bonds per gram than proteins or carbohydrates.

• Lipids have more nitrogenous bases per gram than proteins or carbohydrates.

• Lipids have more amino acids per gram than proteins or carbohydrates.

• Lipids have more simple sugars per gram than proteins or carbohydrates.

Which substance is a product of cellular respiration?

• ADP

• glucose

• oxygen

• water

Tags

NGSS.HS-LS1-7

Which is the correct sequence of events in cellular respiration?

• Electron transport chain, Krebs cycle, Glycolysis

• Glycolysis, Krebs cycle, Electron transport chain

• Krebs cycle, Electron transport chain, Glycolysis

• Krebs cycle, Glycolysis, Electron transport chain

Which of these happens during the Calvin cycle?

• The release of oxygen

• The formation of glucose

• The absorption of solar energy

• The splitting of water molecules

Tags

NGSS.HS-LS1-6

Which is both a reactant of photosynthesis and a product of cellular respiration?

• Glucose

• Sunlight

• Oxygen

• Water

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-5

Which is a way in which exocytosis differs from the pumping of calcium ions against a concentration gradient?

• Exocytosis is a form of passive transport.

• Exocytosis does not involve a carrier protein.

• Exocytosis occurs with the concentration gradient.

• Exocytosis requires an expenditure of energy by the cell.

Which process is an example of facilitated transport?

• The cell membrane wraps around a large molecule and forms a vesicle that takes the molecule into the cytoplasm.

• A protein embedded in the cell membrane allows a specific type of protein to move to a region of lower concentration.

• Waste materials from cellular processes are moved to a region of higher concentration outside the cell.

• A carrier protein moves water across the cell membrane against the concentration gradient.