Cells Regents Review

Which molecule is in equilibrium (equally concentrated inside and outside of the cell)?

• A

• B

• C

Tags

NGSS.MS-LS2-3

Explain why the bag shriveled in the beaker with 80% water and 20% starch.

• Water moved from high to low concentration.

• Water moved from low to high concentration.

• Starch moved from high to low concentration.

• Starch moved from low to high concentration.

Diffusion is the movement of molecules from an area of

• high to low concentration; no energy used.

• low to high concentration; no energy used.

• low to high concentration; ATP energy used

• high to low concentration; ATP energy used

Which of the following molecules started IN the "cell" in the state lab?

• starch, glucose, and iodine

• starch and glucose

• starch and iodine

• glucose, iodine, and salt

Which of the following explains why starch is not permeable to the cell membrane?

• It is too large and complex.

• It is negatively charged.

• It is a waste product.

• The concentration is always lower outside the cell.

Which of the following represents the results in the diffusion through a membrane state lab?

• The bag turned black; the beaker remained amber

• The bag turned amber; the beaker turned black

• The beaker turned amber; the bag remained black

• The bag remained white; the beaker turned amber

Identify the SUBSTANCE and the PROCESS that caused the change shown

• ATP; Active Transport

• Salt water; Omsosis

• Distilled water; Osmosis

• ATP; Passive Transport

Tags

NGSS.MS-LS1-2

Which of the following could be represented by X?

• Transports molecules across the membrane

• Requires the use of ATP energy

• Movement from high to low concentration

• Movement from low to high concentration

Where is B most likely to diffuse and why?

• Out of the cell, b/c there is a higher conc. inside.

• Into the the cell, b/c there is a higher conc. inside.

• Into the the cell, b/c there is a lower conc. outside.

• Out of the cell, b/c there is a lower conc. inside.

Tags

NGSS.MS-LS2-1

Active transport would be required to transport molecule B

• Into the cell

• Out of the cell