LS1.7 BIO1 Review

What will happen to a cell that is placed in a hypotonic saline solution?

• Water will exit the cell causing it to shrink.

• Water will enter the cell causing it to swell.

• Salt will exit the cell causing it to shrink.

• Salt will enter the cell causing it to swell.

Tags

BIO1.LS1.7

The diagram illustrates the movement of molecules through a cell membrane.

What process is being used by the cell to move the molecules?

• osmosis

• endocytosis

• active transport

• facilitated diffusion

What will happen to a cell that is placed in a hypotonic saline solution?

• Water will exit the cell causing it to shrink.

• Water will enter the cell causing it to swell.

• Salt will exit the cell causing it to shrink.

• Salt will enter the cell causing it to swell.

Tags

NGSS.HS-LS1-3

The diagram illustrates the use of energy by a nerve cell to expel a sodium ion from inside of the cell.

Which best explains why energy is necessary to complete this function?

• The ion is being transported against a concentration gradient.

• The ion has more kinetic energy than surrounding molecules.

• The ion is a waste product that is digested by the cell membrane.

• The ion is too large to pass through the cell membrane by diffusion.

The series of images shows a water solution containing dye molecules. Over time, the dye molecules move across a membrane toward equilibrium.

Which will change the most as the system moves toward equilibrium?

• the volume of the solution

• the shape of dye molecules

• the temperature of the water

• the concentration of dye molecules

Tags

NGSS.HS-PS1-5

Cell membranes allow some molecules to move freely across the membrane, while other molecules are restricted. Which term best describes this capability of a cell membrane?

• semipermeable

• impervious

• resiliant

• unyielding

Which component of the cell membrane functions to actively transport molecules into the cell?

• carbohydrate

• cytoplasm

• phospholipid

• protein

Josh and Jamie were studying the rate of diffusion. They prepared four cubes of agar that were equal in size and volume. Then they cut each cube into smaller cubes that were also equal in size and volume. The table shows into how many pieces each original cube was cut.

The cubes were then placed into beakers containing the same type and volume of chemical solution for observation.

Based on the table, which original cube would now have the greatest diffusion rate when placed into the chemical solution?

• W

• X

• Y

• Z

Tags

NGSS.MS-PS1-2

A student used a microscope to observe Elodea submerged in a solution. The student observed the cell cytoplasm pull away from the cell wall and clump together in the center of the cell.

Which statement best explains why this occurred?

• The cell was submerged in a pure solution.

• The cell was submerged in a hypotonic solution.

• The cell was submerged in an isotonic solution.

• The cell was submerged in a hypertonic solution.

Tags

NGSS.HS-LS1-3

Each beaker shown contains an amphibian egg collected from one of four different locations.

Which of these beakers contains an egg that would shrink?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1