quiz_cell organelles_science grade 7.pptx

Cell Organelles

1. QUIZ ON CELL ORGANELLES GRADE 7 SCIENCE

2. 1. A cell is observed to contain a nucleus, mitochondria and chloroplasts. From this information you can conclude that the cell is a. a plant cell b. an animal cell c. a bacteria cell d. a prokaryotic cell

3. 2. Which of the following structures is NOT found in both plant and animal cells? a. chloroplast b. cytoplasm c. mitochondria d. ribosome

4. 3. Which two organelles are found in all living cells? a. centriole and nucleus b. chloroplast and cytoplasm c. cytoplasm and cell membrane d. vacuole and cell wall

5. 4. Food, water, and cellular wastes are stored primarily in the _________ a. chloroplast. b. mitochondria. c. nucleus. d. vacuole.

6. 5. Which are granular structures that manufacture proteins? a. Golgi bodies b. mitochondria c. nucleolus d. ribosome

7. 6. Mitochondrion is called the powerhouse of the cell. What is its main function? a. It manufactures proteins during cell division. b. It packages proteins from the ER. c. It produces ribosomes for protein synthesis. d. It synthesizes ATP for cellular metabolism.

8. Four students were asked to compare the features of a plant cell and an animal cell with the use of a microscope. Student 1: The plant cell contains lysosomes, the animal cell does not. Student 2: The plant cell has cell membrane, the animal cell has cell wall. Student 3: The plant cell contains chloroplast, the animal cell does not. Student 4: The plant cell contains more ribosomes than the animal cell.

9. 7. Who among the students gave a statement that best describes the difference between the two types of cells? a. Student 1 b. Student 2 c. Student 3 d. Student 4

10. 8. Energy conversion in an animal cell would be severely limited by the removal of the cell’s a. chloroplast. b. lysosome. c. mitochondrion. d. vacuole.

11. 9. Which of the following structures is composed of DNA? a. chromatin b. Golgi apparatus c. ribosomes d. vacuoles

12. 10. Which two organelles occur in plant cells but NOT in animal cells? a. cell membrane and chromosome b. cell wall and chloroplast c. nuclear membrane and nucleus d. ribosome and chloroplast

13. 11. What role(s) does the cytoskeleton play in a living cell? a. Maintaining cell shape b. Movement c. Contraction d. All of the above

14. 12. If structure 3 were green, what would its presence enable the cell to do? It would enable the cell exchange materials with its environment. b. It would enable the cell to make food. c. It would enable the cell to reproduce another organism. d. It would enable the cell to secrete substances.

15. 13. What would structure 2 allow to occur in the cell? a. It would allow substances to be absorbed by the cell. b. It would allow substances to be excreted out of the cell. c. It would allow certain substances to pass in and out of the cell. d. It would allow substances to be secreted by the cell.

16. 14. A cell that lacks a nucleus and membrane bound organelles is known as a (an) ________ cell. a. plant b. animal c. eukaryote d. prokaryote

17. 15. Digestive enzymes or hydrolytic enzymes are terms associated with _____. a. ribosomes b. Lysosomes c. Golgi apparatus d. smooth endoplasmic reticulum

18. 16. What is the outermost boundary of an animal cell? a. the cell wall b. the cytoplasm c. the cell membrane d. the nuclear envelope

19. 17. Which is the “brain” of the cell? a. nucleus b. chloroplast c. Golgi bodies d. mitochondria

20. 18. Which of the following is not true of chloroplasts? a. They synthesize sugar b. They contain pigments c. They are only found in plants. d. They appear green because of chlorophyll

21. 19. Which of the following statements is always true? a. All cells have a cell wall. b. All cells contain nucleus. c. All cells contain chloroplast. d. All cells have cell membrane.

22. 20. Which of the following organelles transports materials inside the cell a. lysosome b. Chloroplasts c. mitochondria d. endoplasmic reticulum