Membrane practice questions

Which of the following best represents the amount of starch, water, and glucose in the dialysis bag over the course of the investigation?

• Starch decreases, water increases, glucose remains the same.

• Starch remains the same, water increases, glucose decreases.

• Starch increases, water remains the same, glucose decreases.

• Starch remains the same, water remains the same, glucose remains the same.

Tags

NGSS.MS-LS2-3

Which statement best explains the orientation of the phospholipid molecules in this model?

• The hydrophobic tails face outward, interacting with water.

• The hydrophilic heads face inward, away from water.

• The hydrophilic heads face outward, interacting with water.

• The hydrophobic tails form hydrogen bonds with water.

Which of the following occurs in eukaryotic cells but not in prokaryotic cells?

• Simple diffusion

• Facilitated diffusion

• Endocytosis

• Osmosis

Which of the following statements is true regarding the movement of substances across cell membranes?

• Ions are unable to move through the phospholipid bilayer because the nonpolar tail regions of the phospholipids are hydrophobic.

• Ions are able to move through the phospholipid bilayer because the polar head regions of the phospholipids are charged.

• Water is able to move through the phospholipid bilayer because the nonpolar tail regions of the phospholipids are charged.

• Water is unable to move through the phospholipid bilayer because the polar head regions of the phospholipids are charged.

Tags

NGSS.HS-LS2-3

The diagram above represents a typical rod-shaped bacterium. Which of the following best describes a feature shown in the diagram that is unique to archaea and bacteria?

• The organism is surrounded by a cell wall.

• The organism contains ribosomes.

• The organism does not have a nuclear membrane surrounding its genetic material.

• The organism is not capable of making or providing itself with ATP.

All of the following cell components are found in prokaryotic cells EXCEPT

• DNA

• ribosomes

• cell membrane

• nuclear envelope

• enzymes

Which of the following best describes a feature that is common to both prokaryotic and eukaryotic cells?

• Presence of a cell wall

• Presence of ribosomes

• Presence of a nuclear membrane

• Presence of chloroplasts

What is the expected observation when a cell is placed in a hypertonic solution?

• It appears shriveled

• It appears inflated

• It remains unchanged

• It bursts

Which of the following best describes a feature that is unique to eukaryotic cells?

• Presence of a cell wall

• Presence of ribosomes

• Presence of a nuclear membrane

• Presence of chloroplasts

What is the expected observation when a cell is placed in a hypotonic solution?

• It appears shriveled

• It appears inflated

• It remains unchanged

• It bursts

Tags

NGSS.HS-LS1-3