Cell Processes

What will happen immediately if the cell membrane fails to function properly in a cell?

• The cell will have difficulty moving materials into and out of the cell.

• The cell will not be able to control all the activities occurring inside the cell.

• The cell will not be able to produce enough energy for cellular processes.

• The cell's organelles will no longer be surrounded by a gel-like fluid.

The number of mitochondria in an animal cell varies. Mitochondria are found more in active cells like liver and less in hair cells. Which phrase best explains the role of mitochondria in the active cells?

• remove waste products from the cell

• contain information to start a cell division

• make high energy molecules for the cell to function

• control movement of material in and out of the cell

the cell membrane allows some molecules such as oxygen and water to enter the cell but prevents other substances from entering the cell. Which term best describes the cell membrane?

• impermeable

• selectively permeable

• independently mobile

• prokaryotic

Which cellular process is most related to the function of the mitochondria?

• diffusion

• mitosis

• osmosis

• respiration

Which term best describes the process that increases the quantity of cells?

• locomotion

• nutrition

• mitosis

• respiration

Which statement correctly describes cellular respiration?

• Carbon dioxide plus sugar makes oxygen, energy, and water.

• Carbon dioxide plus water makes oxygen, sugar, and energy.

• Oxygen plus sugar makes carbon dioxide, energy, and water.

• Oxygen plus water makes carbon dioxide, sugar, and energy.

Which process produces oxygen?

• chemosynthesis

• osmosis

• photosynthesis

• respiration

Plant cells are capable of making their own food by photosynthesis. What specialized organelle do they have for capturing the energy from sunlight?

• cell membrane

• cell wall

• chloroplast

• mitochondrion

A gardener cut her finger while pruning shrubs. She noticed that after two weeks the wound had nearly healed with just a small scar remaining. Which statement describes what will happen next?

• Each one of the individual cells near the wound will grow in size to cover the injured part.

• Cells will be transported from distant areas to the wound to cover the injured area.

• The cells near the wound will produce identical cells by mitosis to repair the damaged tissues.

• A material will be released by the injured cells that will cover the wound and repair the cells.

In addition to sunlight, what do plants need in order to make food by photosynthesis?

• oxygen and water

• nitrogen and water

• carbon dioxide and water

• carbon dioxide and nitrogen