Plant Needs Assessment: Water or No Water? Quiz with Answers

📚 Quick Study Guide

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• Water's Role: Water transports nutrients and is essential for photosynthesis.
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• Photosynthesis: Plants use water, sunlight, and carbon dioxide to create food ($C_6H_{12}O_6$) and oxygen ($O_2$).
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• Transpiration: Water evaporates from leaves, cooling the plant.
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• Overwatering: Leads to root rot due to lack of oxygen.
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• Underwatering: Causes wilting and stunted growth.
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• Environmental Factors: Temperature, humidity, and light affect water needs.
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• Soil Type: Different soils retain water differently (e.g., sandy soil vs. clay soil).

🧪 Practice Quiz

1. Which of the following is NOT a key role of water in plants?
   1. A. Transporting nutrients
   2. B. Supporting photosynthesis
   3. C. Providing structural support through turgor pressure
   4. D. Absorbing carbon dioxide directly from the air
2. What happens to a plant if it's consistently overwatered?
   1. A. Increased photosynthesis
   2. B. Root rot due to lack of oxygen
   3. C. Enhanced nutrient absorption
   4. D. Accelerated growth
3. What process involves water evaporating from the leaves of a plant?
   1. A. Photosynthesis
   2. B. Respiration
   3. C. Transpiration
   4. D. Germination
4. Which environmental factor most directly affects a plant's water needs?
   1. A. Soil pH
   2. B. Air temperature
   3. C. Proximity to other plants
   4. D. Availability of nitrogen in the soil
5. What is the primary function of turgor pressure in plants?
   1. A. Facilitating nutrient uptake
   2. B. Maintaining structural rigidity
   3. C. Regulating water loss
   4. D. Promoting seed dispersal
6. A plant's leaves are wilting. Which of the following is the MOST likely cause?
   1. A. Overwatering
   2. B. Underwatering
   3. C. Excessive sunlight
   4. D. Nutrient deficiency
7. Which type of soil generally requires more frequent watering?
   1. A. Clay soil
   2. B. Loamy soil
   3. C. Sandy soil
   4. D. Silt soil