Cell Structure

Use the chart to answer the question.

A laboratory technician places red blood cells into three (3) different solutions. Observations are recorded each minute for five minutes.

Which of the following best explains what is causing the red blood cells in solution 1 to change size over the 5-minute period?

• Water is moving into the cell from its environment

• Water is moving out of the cell to the surrounding environment

• Water is moving in and out of the cell in equal rates

• Solutes are moving into the cell from its environment

Tags

NGSS.MS-LS1-2

NGSS.MS-LS2-4

Oxygen and carbon dioxide molecules pass freely through cell membranes Which factor determines the direction most molecules will pass through the cell membrane?

• The ionic charge on the outer shell of the gas molecules.

• The concentration of the gas molecules on each side of the membrane.

• The strength of the covalent bonds holding the gas atoms in the molecules.

• The size of the gas molecules.

Tags

NGSS.MS-LS2-3

Use the diagram to answer the question. The diagram illustrates how plant root cells take in mineral ions from the surrounding soil. Which of the following processes is illustrated?

• Active Transport

• Diffusion

• Osmosis

• Passive Filtration

Use the diagram to answer the question. Which of the illustrations BEST represents the net movement of molecules in osmosis?

• Illustration A

• Illustration B

• Illustration C

• Illustration D

Use the table to answer the question. The table lists the concentrations of water inside and outside a cell under four (4) different conditions. Under which condition will the cell experience a net loss of water to its environment?

• Condition 1

• Condition 2

• Condition 3

• Condition 4

Which of the following would a cell MOST likely use to move materials by active transport?

• A channel protein

• A market protein

• A phospholipid

• A transfer RNA molecule

The diffusion of a substance into our out of a cell requires

• A concentration gradient.

• An active transport system.

• A carrier molecule.

• A functioning mitochondrion.

Which of these is the process by which water moves across a selectively permeable membrane?

• Osmosis

• Transportation

• Capillary Action

• Active Transport

Which of the following substances can most easily travel into and out of the cell?

• Sodium ions

• Potassium ions

• Water

• Glucose

Use the diagram to answer the question. The diagram is showing the process of

• Osmosis

• Active Transport

• Phagocytosis

• Exocytosis

Tags

NGSS.MS-PS1-2