Biology Practice: The Cell (Mock Test 3 - Upper-Intermediate)
1. According to the Fluid Mosaic Model, the cell membrane is primarily composed of a bilayer of:
2. Which scientists proposed the famous "Fluid Mosaic Model" in 1972?
3. Movement of water molecules from a region of higher concentration to lower concentration through a semi-permeable membrane is:
4. Which process requires energy (ATP) to move substances against a concentration gradient?
5. The "shipping and receiving" side of the Golgi apparatus located near the ER is called the:
6. What happens to a plant cell when placed in a hypotonic solution?
7. Which organelle is responsible for detoxifying drugs and poisons in the liver?
8. The inner mitochondrial membrane has folds called cristae primarily to:
9. Which of the following organelles are NOT part of the endomembrane system?
10. The process of "cell eating," where a cell engulfs large solid particles, is called:
11. A stack of thylakoids found inside a chloroplast is known as a:
12. Which enzyme found in peroxisomes breaks down toxic hydrogen peroxide into water and oxygen?
13. The middle lamella, which holds adjacent plant cells together, is primarily made of:
14. Which structure allows direct communication and transport between two neighboring plant cells?
15. In an animal cell, where are the proteins destined for secretion primarily synthesized?
16. The "beads-on-a-string" structure of DNA wrapped around histone proteins is called a:
17. Which organelle is responsible for recycling the cell's own damaged organelles (Autophagy)?
18. The "9 + 0" arrangement of microtubules is a characteristic of which structure?
19. Which part of the chloroplast is the site of the "Dark Reactions" (Calvin Cycle)?
20. What is the primary role of the nucleolus?