AP Bio Unit 3 Review

If the proton (H+) pump in the thylakoid was not working which molecule could not be made during the light reaction?

• NADPH

• ATP

• Water

• Oxygen gas

Tags

NGSS.HS-LS1-5

What is the role of ribosomes?

• To store genetic information.

• To produce glycolipids.

• To synthesize proteins.

• To hydrolyze waste materials.

Tags

NGSS.HS-LS1-6

In plants, what is the primary function of vacuoles?

• To maintain water pressure inside of the cell.

• To remove waste from inside of the cell.

• To store nutrients inside of the cell.

• To synthesize new membranes for the cell.

Tags

NGSS.MS-LS1-2

Which of the following is a reason that cells are so small?

• Cells are small because they want to maximize their surface area-to-volume ratio.

• Cells are small because they want to maximize their volume-to-surface area ratio.

• Cells are small because they need to produce extremely small macromolecules.

• Cells are small because they prefer to work together in clusters of many thousands that wouldn't otherwise fit anywhere.

Which of the following is one way that cells increase their surface area without increasing their size?

• Cells will often include perfectly spherical membranes.

• Cells will often include folds in their membranes.

• Cells will often include holes in their membranes.

• Cells will maximize their volume.

Which of the following correctly describes hydrophobic and hydrophilic regions of the cellular membrane?

• The hydrophobic region is made of phosphates, and the hydrophilic region is made of lipids.

• The hydrophobic region is 'water-loving', and the hydrophilic region is 'water-fearing'.

• The hydrophobic region is polar, and the hydrophilic region is non-polar.

• The hydrophobic region faces inward in the interior of the membrane, the hydrophilic region faces outwards towards the aqueous environment.

Which of the following is a difference between passive and active transport?

• Passive transport moves molecules against their gradient, while active transport moves molecules with their gradient.

• Passive transport moves molecules with a direct input of energy, while active transport moves molecules without a direct input of energy.

• Passive transport moves molecules non-spontaneously, while active transport moves molecules spontaneously.

• Passive transport moves molecules without a direct input of energy, while active transport moves molecules with a direct input of energy.

Which of the following describes the endosymbiotic theory?

• A prokaryotic cell engulfed several other types of smaller prokaryotic cells, and eventually its compartmentalization made the cell eukaryotic.

• A eukaryotic cell engulfed several other types of smaller prokaryotic cells, and eventually its compartmentalization made the cell prokaryotic.

• A prokaryotic cell engulfed several other types of smaller eukaryotic cells, and eventually its compartmentalization made the cell eukaryotic.

• A eukaryotic cell engulfed several other types of smaller eukaryotic cells, and eventually its compartmentalization made the cell prokaryotic.

Tags

NGSS.HS-LS1-4

Which of the following properties of water enables molecules to cling together as they move from the roots to the leaves of plants?

• Water expands as it freezes.

• Water is an excellent solvent.

• Water exhibits cohesive behavior.

• Water moderates temperature.

Because water has a positively charged end and a negatively charged end, it can be described as

• amphipathic

• hydrophobic

• polar

• nonpolar