Nutrition in Plants Important Questions

Introduction

Nutrition in plants important questions helps students grasp key concepts like photosynthesis, modes of nutrition, and nutrient absorption. This guide covers essential one-liner Q&A to strengthen understanding and exam preparation.

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Nutrition in Plants Important Questions – One-Liner Q&A

Basic Concepts of Plant Nutrition

1. What is nutrition in plants?
2. Name the two main modes of nutrition in plants.
3. What is autotrophic nutrition?
4. Define heterotrophic nutrition.
5. Which process do plants use to make their own food?
6. What is the primary source of energy for photosynthesis?
7. Name the green pigment essential for photosynthesis.
8. What are the raw materials required for photosynthesis?
9. Where does photosynthesis occur in a plant cell?
10. What are the end products of photosynthesis?

Photosynthesis & Chlorophyll

11. Why is chlorophyll important for photosynthesis?
12. Which gas is released during photosynthesis?
13. What is the role of sunlight in photosynthesis?
14. Name the part of the plant where most photosynthesis occurs.
15. How do plants obtain carbon dioxide for photosynthesis?
16. What happens to the oxygen produced during photosynthesis?
17. What is the chemical equation for photosynthesis?
18. Can photosynthesis occur in artificial light?
19. Why do some plants have non-green leaves?
20. What are the factors affecting photosynthesis?

Heterotrophic Nutrition in Plants

21. What are parasitic plants? Give an example.
22. How do insectivorous plants obtain nutrition?
23. Name a plant that traps and digests insects.
24. What are saprophytic plants?
25. How do fungi obtain their nutrition?
26. What is symbiotic nutrition? Give an example.
27. How do Cuscuta (dodder) plants feed?
28. What are mycorrhizae?
29. Why can’t all plants perform photosynthesis?
30. What is the difference between autotrophs and heterotrophs?

Nutrients & Deficiency Symptoms

31. Name the essential nutrients required by plants.
32. What is the role of nitrogen in plant growth?
33. What deficiency causes yellowing of leaves?
34. Why is phosphorus important for plants?
35. What happens if a plant lacks potassium?
36. How do plants absorb water and minerals?
37. What are macronutrients and micronutrients?
38. Which nutrient is essential for chlorophyll formation?
39. What is the function of magnesium in plants?
40. How do fertilizers help in plant nutrition?

Miscellaneous Important Questions

41. Can plants survive without sunlight?
42. What is the difference between photosynthesis and respiration?
43. How do desert plants perform photosynthesis?
44. What are stomata and their role in plant nutrition?
45. Why do some plants store food in their roots?
46. How do leguminous plants enrich the soil?
47. What is the importance of transpiration in plants?
48. How do hydroponic plants get their nutrients?
49. What is nitrogen fixation?
50. Why is crop rotation beneficial for soil nutrition?

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Answers to Nutrition in Plants Important Questions

1. Nutrition in plants is the process of obtaining and utilizing food for growth and energy.
2. Autotrophic and heterotrophic nutrition.
3. Autotrophic nutrition is when plants make their own food using sunlight.
4. Heterotrophic nutrition is when plants depend on other sources for food.
5. Photosynthesis.
6. Sunlight.
7. Chlorophyll.
8. Carbon dioxide, water, and sunlight.
9. Chloroplasts.
10. Glucose and oxygen.
11. Chlorophyll absorbs sunlight for photosynthesis.
12. Oxygen.
13. Sunlight provides energy for the process.
14. Leaves.
15. Through stomata.
16. Released into the atmosphere.
17. 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂.
18. Yes, if the light provides the right wavelength.
19. They contain other pigments masking chlorophyll.
20. Light intensity, CO₂ concentration, temperature, water.
21. Plants that feed on hosts (e.g., Cuscuta).
22. By trapping and digesting insects.
23. Venus flytrap.
24. Plants that feed on dead organic matter.
25. By decomposing dead matter.
26. Mutually beneficial relationship (e.g., lichens).
27. By absorbing nutrients from host plants.
28. Fungal associations with plant roots.
29. Lack chlorophyll or live in dark conditions.
30. Autotrophs make food; heterotrophs depend on others.
31. Nitrogen, phosphorus, potassium, calcium, etc.
32. Helps in protein synthesis and growth.
33. Nitrogen deficiency.
34. Supports energy transfer and root growth.
35. Weak stems and poor growth.
36. Through roots via osmosis and diffusion.
37. Macronutrients needed in large amounts; micronutrients in traces.
38. Nitrogen.
39. Central atom in chlorophyll molecule.
40. Provide essential nutrients to the soil.
41. No, they need sunlight for photosynthesis.
42. Photosynthesis makes food; respiration releases energy.
43. Through CAM pathway (e.g., cacti).
44. Tiny pores for gas exchange.
45. For survival during unfavorable conditions.
46. By fixing nitrogen via Rhizobium bacteria.
47. Helps in nutrient absorption and cooling.
48. From nutrient-rich water solutions.
49. Conversion of atmospheric nitrogen into usable forms.
50. Prevents soil nutrient depletion.

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Key Takeaways

✔ Plants mainly use autotrophic (photosynthesis) and heterotrophic nutrition.
✔ Chlorophyll is crucial for absorbing sunlight in photosynthesis.
✔ Deficiency of nutrients like nitrogen causes yellowing of leaves.
✔ Parasitic, saprophytic, and insectivorous plants have unique nutrition modes.
✔ Stomata help in gas exchange during photosynthesis.

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Also Read: Photosynthesis Questions and Answers

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