1. What level of organization is made up of a group of similar cells that perform a specific function? A. organ C. system B. tissue D. organism 2. Which organ system breaks down food into nutrients that the cells need? A. digestive C. immune B. excretory D. nervous 3. Which organ system in humans makes sperm cells? A female reproductive system C. male reproductive system B. excretory system D. immune system 4. One organ system includes kidneys, bladder, and urethra. What is the purpose of this system? A. to protect body from disease C. to produce offspring B. to transport materials to cells D. to remove wastes from the body 5. Which is the CORRECT sequence from smallest to biggest- of the levels of biological organization? A. cell-tissue-organism-organ-organ system C. cell-organ-organ system-tissue-organism B. cell-tissue-organ-organ system-organism D. cell-organ system-organ-tissue-organism 6. Plants also have organ systems. Which plant organ DOES NOT belong to the shoot system? A flower C. roots B. leaf D. stem 7. Which structure is the simplest level of organization in humans? A. cell C. system B. organ D. tissue 8. Each part of an organ system plays a specific function. Which of the following DOES NOT match its function? A kidneys: excretion C. esophagus: digestion B. heart: circulation D. ears: respiration 9. Juan loves to eat junk food and enjoys adding fish sauce (patis) in his meal. One day, he was complaining of difficulty urinating accompanied by severe pain in the side and back below the ribs. Which organ has a problem in this situation? A brain C. lungs B. kidneys D. intestine 10. How do plants benefit from the root system? A. they obtain water and nutrients from the soil C. they manufacture food B. they provide strength and support D. they produce flowers 11. Which of the following differentiate organs from tissues? A organs make up tissues: tissues make up organ C. organ and tissues make up an organ system. B. tissues make up organs: cells make up tissues D. organs and tissues are made up of cells 12. The organ systems of plants consist of the root and shoot system. Why is it important for this organ system to work together? A. to avoid pest and other animals C. to grow and survive B. to survive floods and strong winds D. to survive droughts and earthquake 13. Who was the first person to see cells under the microscope and give them a name? A. Anton Van Leeuwenhoek C. Theodore Schwann B. Robert Hooke D. Matthias Schleiden 14. All living things are made of A. cells C. molecules B. atom D. none of the above 15. Plants and animals are example of? A. eukaryotic C. both A and B B. prokaryotic D. none of the above 16. Which invention was essential for the development of the cell theory? A. telescopes C. antiseptics B. microwaves D. microscopes 17. Who among the scientists below concluded that all PLANTS are made up of cells? A. Rudolf Virchow C. Matthias Schleiden B. Theodor Schwann D. Robert Hooke 18. Prokaryotes are single-celled organisms that lack nucleus A True B. False 19. Prokaryotes are single-celled organisms that lack nucleus A. True B. False 20. Why are microscopes important when studying cells? A. most cells are very large B. most cells move very quickly C. most cells are very small D. most cells are dead
