This quiz works best with JavaScript enabled. Home > Class 8 > Class 8 Science Chapter 8 Cell Structure And Functions – Quiz 64 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 8 Science Chapter 8 Cell Structure And Functions Quiz 64 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Captures energy from sunlight and converts it into chemical energy stored in food during photosynthesis. Only found in plant cells. A) Chloroplasts. B) Mitochondria. C) Lysosomes. D) Cell membrane. Show Answer Correct Answer: A) Chloroplasts. 2. A cell is observed to have a large central vacuole and chloroplasts. What type of cell is it? A) Animal cell. B) Plant cell. C) Bacterial cell. D) Fungal cell. Show Answer Correct Answer: B) Plant cell. 3. Both smooth muscle fibers and cardiac muscle fibers: A) Have striations. B) Are under involuntary control. C) Are multinucleate. D) Have branching. Show Answer Correct Answer: B) Are under involuntary control. 4. Which statement best describes the main idea of the cell theory? A) All living things are made of atoms. B) All living things are made of cells, and cells come from pre-existing cells. C) All living things are made of tissues. D) All living things are made of organs.TagsVA.LS.2.a. Show Answer Correct Answer: B) All living things are made of cells, and cells come from pre-existing cells. 5. The division of chromosomes is called? A) Anaphase. B) Mitosis. C) Cytokineses. D) G0. Show Answer Correct Answer: B) Mitosis. 6. Which organelle are sac-like tunnels that have ribosomes attached and whose main function is to make and process proteins? A) Smooth endoplasmic reticulum. B) Rough endoplasmic reticulum. C) Golgi apparatus. D) Vesicles. Show Answer Correct Answer: B) Rough endoplasmic reticulum. 7. One difference between cardiac muscle fibers and skeletal muscle fibers is that cardiac muscle fibers: A) Are not striated, while skeletal muscle fibers are. B) Have several nuclei, while skeletal muscle fibers do not. C) Are under voluntary control, while skeletal muscle fibers are not. D) Branch and form complex networks, while skeletal muscle fibers do not. Show Answer Correct Answer: D) Branch and form complex networks, while skeletal muscle fibers do not. 8. What are the endoplasmicreticulum? A) Fill cell. B) Store material, transport material. C) Packages material, transport material and makes parts of cell membrane. D) Break down food to release energy. Show Answer Correct Answer: C) Packages material, transport material and makes parts of cell membrane. 9. If a cell's ribosomes stopped working, what would be the most immediate effect on the cell? Explain your reasoning. A) The cell would stop producing energy. B) The cell would stop making proteins, affecting all cell functions. C) The cell would lose its shape. D) The cell would stop dividing. Show Answer Correct Answer: B) The cell would stop making proteins, affecting all cell functions. 10. Pasteurisation is used to preserve A) Jellies. B) Milk. C) Water. D) Chips. Show Answer Correct Answer: B) Milk. 11. What is the function of centrioles in animal cells? A) Help with cell reproduction. B) Do photosynthesis. C) Protect the DNA. D) Make lipids for the cell. Show Answer Correct Answer: A) Help with cell reproduction. 12. The cellular component not seen under a compound microscope while observing onion peel A) Chromosome. B) Cell wall. C) Nucleus. D) Cytoplasm. Show Answer Correct Answer: A) Chromosome. 13. How do chloroplasts help plant cells? A) By producing energy through cellular respiration. B) By synthesizing proteins. C) By conducting photosynthesis. D) By storing genetic material. Show Answer Correct Answer: C) By conducting photosynthesis. 14. Changes and packages cell products A) Nucleus. B) Cell wall. C) Vacuole. D) Golgi body. Show Answer Correct Answer: D) Golgi body. 15. Both euglena and cyanobacteria are photosynthetic unicellular organisms found in pond water. The feature that distinguishes euglena from cyanobacteria is the ..... A) Ability to maintain homeostasis. B) Presence of ribosomes. C) Ability to reproduce. D) Presence of a nuclear membrane. Show Answer Correct Answer: D) Presence of a nuclear membrane. 16. Living organisms can be classified as prokaryotes or eukaryotes. Which two structures are common to both prokaryotic and eukaryotic cells? A) Cell wall and nucleus. B) Cell wall and chloroplast. C) Plasma membrane and nucleus. D) Plasma membrane and cytoplasm. Show Answer Correct Answer: D) Plasma membrane and cytoplasm. 17. Cell wall in plant cells is made of A) Glycogen. B) Protein. C) Cellulose. D) All the above. Show Answer Correct Answer: C) Cellulose. 18. Elijah, Ava, and Kai are studying eukaryotic cells in their biology class. They are discussing the role of the cytoskeleton in these cells. What is the primary function of the cytoskeleton in eukaryotic cells? A) Providing structural support. B) Storing genetic information. C) Producing energy. D) Regulating molecular transport. Show Answer Correct Answer: A) Providing structural support. 19. Organelles are: A) Small living organisms found outside the cell. B) Organs found in the body. C) Small living structures found scattered in the cytoplasm. D) Cover of the cell. Show Answer Correct Answer: C) Small living structures found scattered in the cytoplasm. 20. Definite shape of cell is seen in case of A) Animal cell. B) Plant cells. C) Both animal and plant cells. D) Neither animal nor plant cells. Show Answer Correct Answer: B) Plant cells. 21. Monitors and controls entry into and out of the cell. A) Vacuole. B) Chloroplast. C) Cell membrane. D) Ribosome. Show Answer Correct Answer: C) Cell membrane. 22. Which of the following helps in synthesis of lipids A) Ribosomes. B) Smooth Endoplasmic Reticulum. C) Rough Endoplasmic Reticulum. D) Golgi bodies. Show Answer Correct Answer: B) Smooth Endoplasmic Reticulum. 23. Which of these accurately compares plant cell vacuoles to those in animal cells? A) Plant vacuoles stores food and animal vacuoles store water. B) Plant cells have smaller vacuoles than animals cells. C) Plant vacuoles contain chlorophyll while animal vacuoles do not. D) Plant vacuoles are larger and fewer in number than animal vacuoles. Show Answer Correct Answer: D) Plant vacuoles are larger and fewer in number than animal vacuoles. 24. Which macromolecule is primarily responsible for storing genetic information? A) Carbohydrates. B) Proteins. C) Nucleic acids. D) Lipids. Show Answer Correct Answer: C) Nucleic acids. 25. An organism whose cells contain a nucleus surrounded by a membrane and whose DNA is bound together by proteins into chromosomes. A) Prokaryote. B) Cell. C) Organelle. D) Eukaryote. Show Answer Correct Answer: D) Eukaryote. ← PreviousNext →Related QuizzesClass 8 Science Chapter 8 Cell Structure And Functions Quiz 1Class 8 Science Chapter 8 Cell Structure And Functions Quiz 2Class 8 Science Chapter 8 Cell Structure And Functions Quiz 3Class 8 Science Chapter 8 Cell Structure And Functions Quiz 4Class 8 Science Chapter 8 Cell Structure And Functions Quiz 5Class 8 Science Chapter 8 Cell Structure And Functions Quiz 6Class 8 Science Chapter 8 Cell Structure And Functions Quiz 7Class 8 Science Chapter 8 Cell Structure And Functions Quiz 8Class 8 Science Chapter 8 Cell Structure And Functions Quiz 9Class 8 Science Chapter 8 Cell Structure And Functions Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books