Quest 4

What is known as the net movement of any type of molecule from a region of higher concentration to a region of lower concentration?

• osmosis

• diffusion

• endocytosis

• exocytosis

The picture shows red blood cells in an isotonic solution.

Red blood cells have a semi-permeable membrane. Which will most likely occur if the red blood cells are placed in a hypertonic solution?

• The red blood cells will lose water and decrease in size.

• The red blood cells will absorb water and increase in size.

• The red blood cells will first absorb water, then lose water.

• The red blood cells will first lose water, then absorb water.

Tags

NGSS.MS-LS1-2

A red blood cell placed in distilled water will swell due to the diffusion of

• salt into the red blood cell

• water into the red blood cell.

• salt out of the red blood cell.

• water out of the red blood cell.

Mark places some cells from an onion skin on a microscope slide. He uses a freshwater solution to make the wet-mount slide. When he observes the cells under the microscope for an extended period of time, what is he most likely to see?

• The cells have dissolved, destroying the cell walls.

• The cells have shrunk within the cell walls.

• The cells have not been affected by the solution.

• The cells have swollen, expanding the cell walls.

Tags

NGSS.MS-LS1-5

An investigation is set up to study the movement of water through a membrane. The results are shown in the diagram.

Based on these results, which statement correctly predicts what will happen to red blood cells when they are placed in a beaker containing a saltwater solution that has a salt concentration much higher than that of the red blood cells?

• The red blood cells will lose water and decrease in size.

• The red blood cells will absorb water and increase in size.

• The red blood cells will first absorb water, then lose water.

• The red blood cells will first lose water, then absorb water.

What is the term for the body's ability to maintain a stable internal balance?

• peristalsis

• metabolism

• homeostasis

• physiology

Tags

NGSS.HS-LS1-3

If a cell is compared to a city, then the Golgi apparatus, which contains membrane-bound structures called cisternae, acts as the

• trash service of the cell as it removes waste from the cell.

• post office of the cell by packaging and sorting proteins.

• mayor of the cell as it controls all of the cell's activities.

• electrical plant of a cell by making usable energy.

Tags

NGSS.MS-LS1-2

Which organelle specializes in producing energy for the cell?

• endoplasmic reticulum

• Golgi apparatus

• lysosome

• mitochondria

Tags

NGSS.MS-LS1-7

The model below shows a type of cell.

Which is located at S?

• a mitochondrion, responsible for generating energy only in animal cells

• the cytoplasm, responsible for cellular reproduction only in animal cells

• a mitochondrion, responsible for generating energy in plant and animals cells

• the cytoplasm, responsible for cellular reproduction in plant and animal cells

Tags

NGSS.MS-LS1-2

The model below shows a type of cell.

What is P?

• It is the chloroplast, which makes up most of the volume in plant cells.

• It is a mitochondrion, which only stores energy for plant cells.

• It is the cytoplasm, which contains fluid and microtubules.

• It is a vacuole, which only stores water in animal cells.

Tags

NGSS.MS-LS1-2