Cellular Transport EOC Review

Diffusion, Osmosis, and Active Transport are all methods by which a cell...

• maintains homeostasis.

• creates energy.

• removes wastes.

• reproduces.

Tags

NGSS.HS-LS1-3

A student is wearing safety goggles, gloves, and an apron to perform an investigation using two water-based solutions. The solution in the dialysis bag has a lower solute concentration in mole per liter (M) than the solution in the beaker.

What type of solution is the beaker?

• Hypotonic

• Hypertonic

• Isotonic

A student is wearing safety goggles, gloves, and an apron to perform an investigation using two water-based solutions. The solution in the dialysis bag has a lower solute concentration in mole per liter (M) than the solution in the beaker.

What type of solution is the dialysis bag?

• Hypotonic

• Hypertonic

• Isotonic

A student is wearing safety goggles, gloves, and an apron to perform an investigation using two water-based solutions. The solution in the dialysis bag has a lower solute concentration in mole per liter (M) than the solution in the beaker.

Which way will the water move based on the concentration of the solutes?

• Out of the dialysis bag

• Into the dialysis bag

• Equally in & out of the dialysis bag

A student wants to investigate a plant leaf under a microscope. The student prepares a wet mount slide of the leaf sample using distilled water. The student then adds a drop of 9% saline solution (a mixture of salt and water) to the slide and sees that the cells in the leaf sample appear to shrivel up.

Where is there more water?

• In the leaf

• In the solution surrounding the leaf

A student wants to investigate a plant leaf under a microscope. The student prepares a wet mount slide of the leaf sample using distilled water. The student then adds a drop of 9% saline solution (a mixture of salt and water) to the slide and sees that the cells in the leaf sample appear to shrivel up.

The 9% saline solution is what type of solution?

• Hypteronic

• Hypotonic

• Isotonic

A student wants to investigate a plant leaf under a microscope. The student prepares a wet mount slide of the leaf sample using distilled water. The student then adds a drop of 9% saline solution (a mixture of salt and water) to the slide and sees that the cells in the leaf sample appear to shrivel up. A student wants to investigate a plant leaf under a microscope. The student prepares a wet mount slide of the leaf sample using distilled water. The student then adds a drop of 9% saline solution (a mixture of salt and water) to the slide and sees that the cells in the leaf sample appear to shrivel up. The student concludes that this occurs because the solution is hypotonic.

Which statement BEST explains whether the student's conclusion is correct?

• The student's conclusion is correct because water flowed into the cells, meaning the solution is hypotonic.

• The student's conclusion is incorrect because water flowed into the cells, meaning the solution is hypertonic.

• The student's conclusion is correct because water flowed out of the cells, meaning the solution is hypotonic.

• The student's conclusion is incorrect because water flowed out of the cells, meaning the solution is hypertonic.

A person with swollen gums rinses his mouth with warm salt water, and the swelling decreases. Which of the following has occurred?

• The swollen gums have absorbed the saltwater solution.

• The saltwater solution lowers the temperature of the water in the gums.

• The salt in the solution has moved against the concentration gradient.

• The water in the gums has moved out due to the high concentration of salt in the solution.

When Streptococcus pneumoniae are exposed to an antibiotic, the bacteria try to pump the antibiotic out of their cells. Which of the following mechanisms is most likely used by the Streptococcus pneumoniae to pump the antibiotic out of their cells?

• Active transport

• Diffusion

• Facilitated diffusion

• Osmosis

Carrot sticks that are left in a dish of freshwater for several hours become stiff and hard. Similar sticks left in a saltwater solution become limp and soft. From this we can deduce that the freshwater is ​ (a)   and the saltwater is ​​ ​ (b)   to the cells of the carrot sticks.

• Hypotonic
• Hypertonic
• Isotonic