Cell Structure and Function OST Biology

1. What is the function of the cell membrane?

• a. Provides organization and shape of the cell
• b. Transports materials within the cell
• c. Builds proteins
• d. Maintains homeostasis by allowing selective passage of substances

2. What determines which molecules can pass freely through the cell membrane?

• a. Organization and shape of the cell
• b. Transport proteins within the cell
• c. Molecular properties and concentration of the substances
• d. Energy input required for passage

3. Which type of cells have a complex network of proteins for organization and shape?

• a. Prokaryotes
• b. Eukaryotes
• c. Multicellular organisms
• d. Primitive cells

4. What is the role of specialized parts within the cell?

• a. Transport materials
• b. Transform energy
• c. Build proteins
• d. All of the above

5. Which type of cells do not have the same chemical reactions as most of the other cells in multicellular organisms?

• a. Prokaryotes
• b. Eukaryotes
• c. Multicellular organisms
• d. Primitive cells

6. When do prokaryotes first appear in the fossil record?

• a. 1 billion years ago
• b. 3.8 billion years ago
• c. 2 billion years ago
• d. 500 million years ago

7. When do eukaryotes, cells with nuclei, develop?

• a. 1 billion years ago
• b. 3.8 billion years ago
• c. 2 billion years ago
• d. 500 million years ago

8. From which type of cells did complex multicellular organisms descend?

• a. Prokaryotes
• b. Eukaryotes
• c. Primitive cells
• d. None of the above

9. Which part of the cell provides information feedback and movement?

• a. Nucleus
• b. Cytoplasm
• c. Cell membrane
• d. Mitochondria

10. Which type of cell is first found in the fossil record about 3.8 billion years ago?

• a. Prokaryotes
• b. Eukaryotes
• c. Multicellular organisms
• d. Primitive cells