Unit 1: Cells Review

Which three statements are part of the Cell Theory?

• All cells are living.

• All living things are made of cells.

• Cells are the basic building blocks of life.

• All living things go through the process of respiration.

• Cells come from other cells.

Tags

VA.LS.2.a

When you fall off your bike and damage skin on part of your body, some of your cells die. Based on the Cell Theory, what is the reason why your skin eventually heals and grows back to look the same again?

• Your cut healed because all living things are made of cells.

• Your cut healed because cells grow faster under bandages.

• Your cut healed because new cells are produced from other cells.

• Your cut healed because cells are the basic unit of life.

Tags

VA.LS.2.a

Which of the following is a statement supported by scientific evidence from repeated tests, without exception?

• law

• theory

• hypothesis

Tags

VA.LS.2.a

Muscle cells are highly active and require a significant amount of energy. You would expect muscle cells to have a large number of which organelle?

• Chloroplasts

• Vacuoles

• Mitochondria

• Ribosomes

Tags

VA.LS.2.b

In which organelle does cell transport (the process of controlling what things come in and out of the cell) take place in an animal cell?

• Cell Wall

• Nucleus

• Mitochondria

• Cell Membrane

Tags

VA.LS.2.b

Match the organelle with its function.

• Chloroplast

• the control center of the cell; contains the DNA

• Mitochondria

• energy producing site; considered the powerhouse of the cell

• Vacuole

• stores materials such as food, water and waste

• Nucleus

• site of photosynthesis; makes food for plants

Tags

VA.LS.2.b

Match the organelle with its function. Match each organelle to its correct function.

• Cytoplasm

• Transports materials around the inside of the cell

• Cell Membrane

• Keeps the structure of the cell; protects the cell

• Cell Wall

• Controls what comes in and what leaves the cell

• Endoplasmic Reticulum (ER)

• Jelly-like substance that holds the other organelles in place

Tags

VA.LS.2.b

What is the main function of the cell membrane?

• The cell membrane controls what substances pass into and out of a cell.

• The cell membrane produces energy for the cell.

• The cell membrane stores genetic information.

• The cell membrane synthesizes proteins.

Tags

VA.LS.2.b

Read the following passage about the cell membrane. Then, answer the related questions. Cell Membrane Everything a cell needs, such as food particles, water, and oxygen, enters through the cell membrane. Waste products leave the same way. In addition, the cell membrane prevents harmful materials from entering the cell. Which of the following does NOT enter a cell through the cell membrane?

• Food particles

• Water

• Oxygen

• Harmful materials

Tags

VA.LS.2.b

Where is the cell membrane located in plant cells?

• Just inside the cell wall

• Outside the cell wall

• Inside the nucleus

• Surrounding the chloroplast

Tags

NGSS.MS-LS1-2