This quiz works best with JavaScript enabled. Home > Plant Diseases > Identification > Plant Diseases – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Plant Diseases Quiz 2 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Some glucose is used by plants to produce Proteins examples of proteins are A) Starch and Fatty Acids. B) Chlorophyll and Starch. C) Starch and Enzymes. D) Enzymes and Chlorophyll. Show Answer Correct Answer: D) Enzymes and Chlorophyll. 2. Which of the following are ways to identify plant diseases? A) Using a gardening manual. B) Take infected plant to be tested in a lab. C) Using monoclonal testing kits. D) All of the above. Show Answer Correct Answer: D) All of the above. 3. What is needed to make chlorophyll? A) Magnesium. B) Photosynthesis. C) Magnesum. D) None of above. Show Answer Correct Answer: A) Magnesium. 4. What benefit does lignin provide? A) It is waterproof. B) It strengthens the cell membrane. C) It is antibacterial. D) None of above. Show Answer Correct Answer: A) It is waterproof. 5. What can insects do to a plant? A) Turn Leaves Yellow. B) Stunt growth. C) Damage the stem and leaves. D) Drop Leaves Early. Show Answer Correct Answer: C) Damage the stem and leaves. 6. What are the advantages of using insoluble substances such as starch for storage, rather than soluble substances such as glucose A) They do not affect the water concentration inside cells. B) They do not move away from the storage areas in the plant. C) Both are correct. D) Neither are correct. Show Answer Correct Answer: C) Both are correct. 7. What is the function of a physical defence? A) Prevent entry and spread of a pathogen. B) Kill a pathogen. C) Deter a pathogen. D) None of above. Show Answer Correct Answer: A) Prevent entry and spread of a pathogen. 8. What 3 factors are limiting factors of photosynthesis? A) Carbon dioxide concentration, Oxygen concentration, Water. B) Carbon dioxide concentration, Temperature, Water. C) Temperature, Water, Light intensity. D) Carbon dioxide concentration, Temperature, Light intensity. Show Answer Correct Answer: D) Carbon dioxide concentration, Temperature, Light intensity. 9. When a plant responds to a pathogen by signalling other parts of the plant to prepare for infection by the pathogen. A) Hypersensitive response. B) Systemic Acquired response. C) Barrier Defenses. D) Cytokine Storm. Show Answer Correct Answer: A) Hypersensitive response. 10. Addition of lignin to cell walls is an example of what type of defence? A) Physical. B) Passive Chemical. C) Active Chemical. D) None of above. Show Answer Correct Answer: A) Physical. 11. Which of the following is a physical plant defence? A) Producing antibacterial substances. B) Thorns and spikes. C) Tough waxy cuticles. D) Mimicry. Show Answer Correct Answer: C) Tough waxy cuticles. 12. How do insects damage a plant? A) They reduce the area for photosynthesis. B) They destroy cells. C) They act as a vector, transferring viruses, bacteria and fungi between the plants. D) They prevent plants from acquiring the water and minerals it needs. Show Answer Correct Answer: C) They act as a vector, transferring viruses, bacteria and fungi between the plants. 13. What are magnesium Ions needed for? A) Protein Synthesis. B) Making Chlorophyll. C) Communists. D) None of above. Show Answer Correct Answer: B) Making Chlorophyll. 14. How is rose black spot spread? A) By spores. B) By aphids. C) By pollinating bees. D) By Seeds. Show Answer Correct Answer: A) By spores. 15. How do nematode worms damage a plant? A) They reduce the area for photosynthesis. B) They destroy cells. C) They act as a vector, transferring viruses, bacteria and fungi between the plants. D) They prevent plants from acquiring the water and minerals it needs. Show Answer Correct Answer: D) They prevent plants from acquiring the water and minerals it needs. 16. What is chlorosis caused by? A) Water deficiency. B) Nitrate deficiency. C) Magnesium deficiency. D) CO2 deficiency. Show Answer Correct Answer: C) Magnesium deficiency. 17. How does Callose prevent the spread of pathogens? A) Blocks the xylem. B) Blocks the sieve plates in the xylem. C) Blocks the sieve plates in the phloem. D) Causes abscission. Show Answer Correct Answer: C) Blocks the sieve plates in the phloem. 18. What type of disease is tobacco mosaic? A) Fungal. B) Viral. C) Bacterial. D) Deficiency. Show Answer Correct Answer: B) Viral. 19. What prevents water from collecting on the surface? A) Leaves falling of. B) Layer of dead skin. C) Waxy cuticle. D) Cellulose Cell wall. Show Answer Correct Answer: C) Waxy cuticle. 20. What is stunted growth caused by? A) Water deficiency. B) Nitrate deficiency. C) Magnesium deficiency. D) CO2 deficiency. Show Answer Correct Answer: B) Nitrate deficiency. ← PreviousNext →Related QuizzesPlant Diseases QuizzesPlant Diseases Quiz 1Plant Diseases Quiz 3 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books