7th Grade Science: Plant & Animal Cells/Levels of Organization/Cell Theory COPY OF TEST

1. A student compares a cell to a train. Which part of the train is most similar to the mitochondria of the cell?

• The wheels that move the train
• The engineer who controls the train
• The engine that provides energy for the train
• The boxcar that stores materials that are transported by the train

2. Which two structures are found in only plant cells?

• chloroplast, nucleus
• cell wall, chloroplasts
• nucleus, cell membrane
• cell wall, cell membrane

3. The loss of chloroplasts would have a direct impact on a green plant's ability to--

• move
• produce food
• store waste
• absorb water

4. Which of the following organelles provides structure and support to cells?

• mitochondria
• nucleus
• cytoplasm
• cell wall

5. Cell membranes are sometimes called selective because-

• cell membranes hold the contents of the cells
• cell membranes are usually not found in cells
• cell membranes allow all types of substances into cells
• cell membranes control what enters and leaves the cell

6. The nucleus holds the--

• water and gases of the cell
• cytoplasm of the cell
• genetic material of the cell
• green chlorophyll of the cell

7. Which organelle provide cells with energy and is known as the "power house" of the cell?

• chloroplasts
• cytoplasm
• mitochondria
• nucleus

8. The function of the plant cell part labeled "X" is to--

• control hereditary of traits
• provide oxygen to the cell
• transform sunlight into food (glucose)
• allow substances to enter or leave the cell

9. The functions of the cell part labeled "Z" include-

• holding and protecting chromosomes
• providing energy for the cell
• capturing sunlight energy
• storing water

10. Which of the following statements relates to cell theory?

• All cells contain a nucleus.
• Cells are the basic unit of life.
• All cells are exactly alike.
• Both living and nonliving things are composed of cells.